subject:(Organic)

Boston College

1. Rodrigo, Jason. The Development of Amino Acid-Derived Catalysts for the Enantioselective Silylation of Alcohols: An Application to the Total Synthesis of Sapinofuranone A.

Degree: PhD, Chemistry, 2010, Boston College

URL: http://dlib.bc.edu/islandora/object/bc-ir:101638

► Chapter 1. Review of efficient, non-enzymatic methods for the catalytic enantioselective functionalizations of alcohols Chapter 2. Introduction of the first catalytic asymmetric silylation of of… (more)

Subjects/Keywords: Organic

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APA (6^th Edition):

Rodrigo, J. (2010). The Development of Amino Acid-Derived Catalysts for the Enantioselective Silylation of Alcohols: An Application to the Total Synthesis of Sapinofuranone A. (Doctoral Dissertation). Boston College. Retrieved from http://dlib.bc.edu/islandora/object/bc-ir:101638

Chicago Manual of Style (16^th Edition):

Rodrigo, Jason. “The Development of Amino Acid-Derived Catalysts for the Enantioselective Silylation of Alcohols: An Application to the Total Synthesis of Sapinofuranone A.” 2010. Doctoral Dissertation, Boston College. Accessed February 21, 2020. http://dlib.bc.edu/islandora/object/bc-ir:101638.

MLA Handbook (7^th Edition):

Rodrigo, Jason. “The Development of Amino Acid-Derived Catalysts for the Enantioselective Silylation of Alcohols: An Application to the Total Synthesis of Sapinofuranone A.” 2010. Web. 21 Feb 2020.

Vancouver:

Rodrigo J. The Development of Amino Acid-Derived Catalysts for the Enantioselective Silylation of Alcohols: An Application to the Total Synthesis of Sapinofuranone A. [Internet] [Doctoral dissertation]. Boston College; 2010. [cited 2020 Feb 21]. Available from: http://dlib.bc.edu/islandora/object/bc-ir:101638.

Council of Science Editors:

Rodrigo J. The Development of Amino Acid-Derived Catalysts for the Enantioselective Silylation of Alcohols: An Application to the Total Synthesis of Sapinofuranone A. [Doctoral Dissertation]. Boston College; 2010. Available from: http://dlib.bc.edu/islandora/object/bc-ir:101638

Iowa State University

2. Hale, Benjamin James. Influence of heterocycle substitution in π-functional materials for organic photovoltaics.

Degree: 2015, Iowa State University

URL: https://lib.dr.iastate.edu/etd/14833

► Heterocycle substitution can have a dramatic, and potentially unintended, impact the physical, optical, electrochemical, and photovoltaic properties of donor materials used in organic electronics. A… (more)

Subjects/Keywords: Organic Chemistry; Organic electronics; Organic photovoltaics; Organic synthesis; Organic Chemistry

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APA (6^th Edition):

Hale, B. J. (2015). Influence of heterocycle substitution in π-functional materials for organic photovoltaics. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/14833

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hale, Benjamin James. “Influence of heterocycle substitution in π-functional materials for organic photovoltaics.” 2015. Thesis, Iowa State University. Accessed February 21, 2020. https://lib.dr.iastate.edu/etd/14833.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hale, Benjamin James. “Influence of heterocycle substitution in π-functional materials for organic photovoltaics.” 2015. Web. 21 Feb 2020.

Vancouver:

Hale BJ. Influence of heterocycle substitution in π-functional materials for organic photovoltaics. [Internet] [Thesis]. Iowa State University; 2015. [cited 2020 Feb 21]. Available from: https://lib.dr.iastate.edu/etd/14833.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hale BJ. Influence of heterocycle substitution in π-functional materials for organic photovoltaics. [Thesis]. Iowa State University; 2015. Available from: https://lib.dr.iastate.edu/etd/14833

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

3. Jayasekara, Himali Devika. Photochemical Elimination Reactions that Proceed via Triplet Excited State Electrocyclic Ring Closures.

Degree: 2014, Marquette University

URL: https://epublications.marquette.edu/theses_open/247

► Cage compounds have become an important tool for the study of biological processes. The research focuses on new cage compounds that can unmask functional groups… (more)

▼ Cage compounds have become an important tool for the study of biological processes. The research focuses on new cage compounds that can unmask functional groups present in biologically important molecules such as proteins, peptides, and oligonucleosides. The project focuses on certain functional groups that are often difficult to release photochemically. These are the thiolate groups present in cysteine residues of proteins and peptides. Thiolate groups are fairly basic leaving groups, unlike the more labile groups such as the carboxylates that are present in proteins and peptides, or the phosphate groups present in nucleosides. The research takes advantage of the ability of zwitterionic intermediates to release basic leaving groups such as the thiolates. The zwitterionic intermediates are generated photochemically by electrocyclic ring closure of aromatic carboxamides that has the chromophore attached to the amide nitrogen. Most importantly, the research utilizes a chromophore that absorbs visible light, so as to minimize the damaging effects that short-wavelength light has on tissue and cells. The research recognizes that triplet energy transfer from triplet excited state of the chromophore to the aromatic ring system attached to carboxamide carbonyl group must be exothermic in order for the electrocyclic ring closure to occur. For a thioxanthone chromophore (ET = 64 kcal mol-1), the aromatic ring system is a naphthothiophene ring system (ET = 62 kcal mol-1). The energy transfer would therefore be exothermic. This cage compound was synthesized with a 3-chloro leaving group. It undergoes photochemical electrocyclic ring closure and chloride expulsion in 50% yield after 1.5 h photolysis. The reaction qualitatively appears to be efficient. In comparison, a 5-benzoylthiophene aromatic ring system with 3-chloro group undergoes the same photoreaction in very low yields over 72 h, even though the triplet energy transfer is exothermic. In this case the photoproduct effectively competes for the incident light with the reactant. The research shows that the naphthothiophene ring system is a viable solution to the triplet energy transfer problem. It also points to a need to improve the solubility of the cage compound by incorporating one or more carboxylate groups into the naphthothiophene ring or the thioxanthone ring. Advisors/Committee Members: Steinmetz, Mark G., Donaldson, William A., Timerghazin, Qadir K..

Subjects/Keywords: Organic chemistry; Chemistry; Organic Chemistry

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APA (6^th Edition):

Jayasekara, H. D. (2014). Photochemical Elimination Reactions that Proceed via Triplet Excited State Electrocyclic Ring Closures. (Thesis). Marquette University. Retrieved from https://epublications.marquette.edu/theses_open/247

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Jayasekara, Himali Devika. “Photochemical Elimination Reactions that Proceed via Triplet Excited State Electrocyclic Ring Closures.” 2014. Thesis, Marquette University. Accessed February 21, 2020. https://epublications.marquette.edu/theses_open/247.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Jayasekara, Himali Devika. “Photochemical Elimination Reactions that Proceed via Triplet Excited State Electrocyclic Ring Closures.” 2014. Web. 21 Feb 2020.

Vancouver:

Jayasekara HD. Photochemical Elimination Reactions that Proceed via Triplet Excited State Electrocyclic Ring Closures. [Internet] [Thesis]. Marquette University; 2014. [cited 2020 Feb 21]. Available from: https://epublications.marquette.edu/theses_open/247.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jayasekara HD. Photochemical Elimination Reactions that Proceed via Triplet Excited State Electrocyclic Ring Closures. [Thesis]. Marquette University; 2014. Available from: https://epublications.marquette.edu/theses_open/247

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Hong Kong

4. Han, Chuanyu. Low-voltage pentacene organic thin-film transistor by using high-k gate dielectric.

Degree: PhD, 2015, University of Hong Kong

URL: Han, C. [韓傳余]. (2015). Low-voltage pentacene organic thin-film transistor by using high-k gate dielectric. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5610949 ; http://hdl.handle.net/10722/221204

► Organic thin-film transistor (OTFT) has wide application in flexible and wearable electronic products due to its flexibility, easy fabrication and low cost. However, applications of… (more)

▼ Organic thin-film transistor (OTFT) has wide application in flexible and wearable electronic products due to its flexibility, easy fabrication and low cost. However, applications of OTFT are facing two major challenges. The first is low speed caused by the low carrier mobility of OTFT as compared with other types of TFT. The second is high operating voltage due to the large threshold voltage of OTFT. Therefore, the main purpose of this research is to investigate new gate dielectrics as well as surface modifications for increasing the carrier mobility and reducing the threshold voltage of OTFT with pentacene as the organic semiconductor. Firstly, the influence of fluorine plasma treatment on the performance of pentacene OTFT with LaZrO as gate dielectric is investigated. After treating the dielectric in a fluorine plasma, the carrier mobility of the transistor can be greatly improved to 0.72 〖cm〗²/V·s, which is more than 40 tim es that of one without the plasma treatment. The major reasons should be fewer interface traps and thus larger pentacene grains induced by the fluorine plasma. Moreover, after exposure to the atmosphere without encapsulation for 6 months, all the devices still display good transistor characteristics. Then, the effects of La incorporation in three transition-metal (TM = Y, Zr and Nb) oxides as gate dielectric of pentacene OTFT have been studied. La incorporated in Zr oxide and Nb oxide greatly decreases their trap density by passivating their oxygen vacancies, resulting in larger pentacene grains grown on them and thus higher carrier mobility for the OTFT due to less grain-boundary scattering. The carrier mobility of the ZrLaO- and NbLaO-OTFTs is about 70 times and 300 times higher than that of their counterparts based on ZrO2 and Nb2O5, respectively. However, La incorporated in Y2O3 increases its trap density by roughening its surface, causing smaller pentacene grains grown and thus lower carrier mobility. Moreover, the effects of La content (x) on pentacene OTFTs with LaxTa(1-x)Oy or LaxNb(1-x)Oy as gate dielectric are investigated. The OTFT with La0.764Ta0.236Oy achieves a high carrier mobility of 1.21 〖cm〗²/V·s, which is about 40 times and two times higher than those of the devices using Ta oxide and La oxide, respectively. On the other hand, the OTFT with La0.648Nb0.352Oy as gate dielectric has a small threshold voltage of -1.35 V, despite a slightly lower carrier mobility of 1.14 〖cm〗² V^(-1) s^(-1). By using flexible vacuum tape as the substrate, pentacene OTFT with La0.850Nb0.150Oy as gate dielectric is fabricated at a low temperature of 200 ºC and obtains a very high carrier mobility of 5.32 〖cm〗² V^(-1) s^(-1)with negligible hysteresis of -0.032 V and small sub-threshold swing of 0.174 V/dec. Lastly, by including the generation-recombination process of charge carriers in conduction channel, a model for the low-frequency noise of pentacene OTFT is proposed. In this model, the slope and magnitude of power spectral density for low-frequency noise are related to the…

Subjects/Keywords: Organic semiconductors; Organic thin films

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APA (6^th Edition):

Han, C. (2015). Low-voltage pentacene organic thin-film transistor by using high-k gate dielectric. (Doctoral Dissertation). University of Hong Kong. Retrieved from Han, C. [韓傳余]. (2015). Low-voltage pentacene organic thin-film transistor by using high-k gate dielectric. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5610949 ; http://hdl.handle.net/10722/221204

Chicago Manual of Style (16^th Edition):

Han, Chuanyu. “Low-voltage pentacene organic thin-film transistor by using high-k gate dielectric.” 2015. Doctoral Dissertation, University of Hong Kong. Accessed February 21, 2020. Han, C. [韓傳余]. (2015). Low-voltage pentacene organic thin-film transistor by using high-k gate dielectric. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5610949 ; http://hdl.handle.net/10722/221204.

MLA Handbook (7^th Edition):

Han, Chuanyu. “Low-voltage pentacene organic thin-film transistor by using high-k gate dielectric.” 2015. Web. 21 Feb 2020.

Vancouver:

Han C. Low-voltage pentacene organic thin-film transistor by using high-k gate dielectric. [Internet] [Doctoral dissertation]. University of Hong Kong; 2015. [cited 2020 Feb 21]. Available from: Han, C. [韓傳余]. (2015). Low-voltage pentacene organic thin-film transistor by using high-k gate dielectric. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5610949 ; http://hdl.handle.net/10722/221204.

Council of Science Editors:

Han C. Low-voltage pentacene organic thin-film transistor by using high-k gate dielectric. [Doctoral Dissertation]. University of Hong Kong; 2015. Available from: Han, C. [韓傳余]. (2015). Low-voltage pentacene organic thin-film transistor by using high-k gate dielectric. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5610949 ; http://hdl.handle.net/10722/221204

University of Oxford

5. Liddon, John Timothy Ruskin. The versatile chemistry of azidoalkyl enol ethers and their equivalents.

Degree: PhD, 2015, University of Oxford

URL: http://ora.ox.ac.uk/objects/uuid:a5554d44-d251-4ca5-8b2d-d07a7c95138a ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.664830

► This thesis describes the synthesis and intramolecular cycloaddition products of azides tethered to olefins bearing a heteroatom in an attempt to access a proposed triazolium… (more)

Subjects/Keywords: 547; Chemistry; Organic Chemistry; Organic

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APA (6^th Edition):

Liddon, J. T. R. (2015). The versatile chemistry of azidoalkyl enol ethers and their equivalents. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:a5554d44-d251-4ca5-8b2d-d07a7c95138a ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.664830

Chicago Manual of Style (16^th Edition):

Liddon, John Timothy Ruskin. “The versatile chemistry of azidoalkyl enol ethers and their equivalents.” 2015. Doctoral Dissertation, University of Oxford. Accessed February 21, 2020. http://ora.ox.ac.uk/objects/uuid:a5554d44-d251-4ca5-8b2d-d07a7c95138a ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.664830.

MLA Handbook (7^th Edition):

Liddon, John Timothy Ruskin. “The versatile chemistry of azidoalkyl enol ethers and their equivalents.” 2015. Web. 21 Feb 2020.

Vancouver:

Liddon JTR. The versatile chemistry of azidoalkyl enol ethers and their equivalents. [Internet] [Doctoral dissertation]. University of Oxford; 2015. [cited 2020 Feb 21]. Available from: http://ora.ox.ac.uk/objects/uuid:a5554d44-d251-4ca5-8b2d-d07a7c95138a ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.664830.

Council of Science Editors:

Liddon JTR. The versatile chemistry of azidoalkyl enol ethers and their equivalents. [Doctoral Dissertation]. University of Oxford; 2015. Available from: http://ora.ox.ac.uk/objects/uuid:a5554d44-d251-4ca5-8b2d-d07a7c95138a ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.664830

Nelson Mandela Metropolitan University

6. Mahanjana, Lungelwa. Reactions towards the synthesis of the uncommon P57 cymarose moiety.

Degree: Faculty of Science, 2013, Nelson Mandela Metropolitan University

URL: http://hdl.handle.net/10948/6711

► The work described in this study aims to investigate methods that will improve a lengthy synthetic pathway in the synthesis of the P57 cymarose moiety,… (more)

▼ The work described in this study aims to investigate methods that will improve a lengthy synthetic pathway in the synthesis of the P57 cymarose moiety, and to examine the conformational structure of certain glycosides in order to shed light on the problematic stereochemical issues surrounding the formation of the cymarose glycosyl donor. The cymarose moiety forms part of the trisaccharide derivative present in P57, an appetite suppressant molecule. Modification of reaction steps in the conversion of the stereochemistry at C-3 of a previously reported synthesis of the P57 cymarose moiety was carried out. The first step was the selective oxidation of D-glucal using Pd/C in the presence of acetonitrile. These reaction conditions are more appropriate for the oxidation step to avoid decomposition of the formed molecules. Successive protection of the free OH groups was followed by NaBH4 reduction under stereo-controlled conditions, influenced by CeCl3•7H2O. However, the reduced product could not be isolated from the starting material and this led to ambiguous results when attempting to confirm whether the conversion of the stereochemistry at C-3 had occurred or not. The effect of reaction conditions, such as change in reaction temperature, during the preparation of the cymarose glycosyl donor was studied in order to find suitable reaction conditions to produce α,β-allo derivatives with high stereoselectivity. Compared to the reported synthetic method, this set-up gave improved yields with, unfortunately, similar or slightly lower selectivity to the formation of α-altro:α,β-allo derivative. Examination of the conformational structure of the allal derivative, in order to understand the mechanism at work during the placement of the directing group at C-2, was carried out using molecular modelling. The mechanistic implications of this very short study are discussed and it provides some insights into the likely pathway of the iodination reaction and its selectivity in particular, to the D-allose system.

Subjects/Keywords: Chemistry, Organic; Organic compounds – Synthesis

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APA (6^th Edition):

Mahanjana, L. (2013). Reactions towards the synthesis of the uncommon P57 cymarose moiety. (Thesis). Nelson Mandela Metropolitan University. Retrieved from http://hdl.handle.net/10948/6711

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mahanjana, Lungelwa. “Reactions towards the synthesis of the uncommon P57 cymarose moiety.” 2013. Thesis, Nelson Mandela Metropolitan University. Accessed February 21, 2020. http://hdl.handle.net/10948/6711.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mahanjana, Lungelwa. “Reactions towards the synthesis of the uncommon P57 cymarose moiety.” 2013. Web. 21 Feb 2020.

Vancouver:

Mahanjana L. Reactions towards the synthesis of the uncommon P57 cymarose moiety. [Internet] [Thesis]. Nelson Mandela Metropolitan University; 2013. [cited 2020 Feb 21]. Available from: http://hdl.handle.net/10948/6711.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mahanjana L. Reactions towards the synthesis of the uncommon P57 cymarose moiety. [Thesis]. Nelson Mandela Metropolitan University; 2013. Available from: http://hdl.handle.net/10948/6711

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Helsinki

7. Raffaelli, Barbara. Synthesis of lignano-9,9'-lactones and rearrangement studies.

Degree: Department of Chemistry, Laboratory of Organic Chemistry, 2012, University of Helsinki

URL: http://hdl.handle.net/10138/37066

►

Lignans are found as naturally occurring compounds in plants, and also as metabolites in mammals. Due to their biological activity, lignans have attracted the interest… (more)

▼

Lignans are found as naturally occurring compounds in plants, and also as metabolites in mammals. Due to their biological activity, lignans have attracted the interest of scientists from different areas like food chemistry, synthetic chemistry, and clinical chemistry. The research is very active, as evident by the number of publications related to this subject that are published annually. The present work focuses on the chemistry of certain classes of lignan, namely lignano-9,9'-lactones and their rearranged products. The literature review is based on the synthesis of lignano-9,9'-lactones and 7'-OH-lignano-9,9'-lactones. Both racemic and asymmetric protocols appeared as from year 2000 have been extensively reviewed. In addition, the literature concerning the rearrangement reaction of 7'-OH-lignano-9,9'-lactones have been discussed. The experimental section presents the development of a stereoselective synthesis to obtain 7'-hydroxylignanolactones. Subsequently, the known rearrangement reactions affecting hydroxylignanolactones are discussed. The stereochemistry of certain lignanolactones is a core part of this work and the findings of this study allowed the revision of certain controversial data found in the literature. For the first time, the X-ray structures of 7'-OH-lignano-9,9'-lactones were obtained. In addition, the synthesis of possible lignan metabolites is also presented. A summary of the available 1H NMR data for selected (7'S)- and (7'R)-OH-lignano-9,9'-lactones and for various lignano-9,7'-lactone stereoisomers has been made available in the Appendix section.

Lignaanit ovat mielenkiintoinen ihmisen terveyteen vaikuttavien aineiden ryhmä, joita esiintyy luonnossa kasveissa, erityisesti hedelmissä ja vihanneksissa. Lignaaneihin kohdistuva tieteellinen mielenkiinto johtuu niiden moninaisista rakennevariaatioista, ja ennen kaikkea niiden monista biologisista vaikutuksista. Lignaanien perusrakenne koostuu kahdesta fenyylipropaaniyksiköstä, jotka ovat sitoutuneet toisiinsa C-C -sidoksella propaaniyksikköjen keskihiilien kautta. Rakenteellista monimuotoisuutta aiheuttavat muut C-C sidokset, hapetusasteen vaihtelut, ja sekä alifaattisiin että aromaattisiin hiiliatomeihin kiinnittyneet erilaiset substituentit. Kasvikunta käyttää lignaaneja sienten ja hyönteisten torjuntaan. Ajankohtaisempaa on lignaanien merkitys liittyen ihmisen terveyteen. Kirjallisuudessa on raportoitu syövän vastaisista, antioksidatiivisista, anti-inflammatorisista ja apoptoottisista vaikutuksista sekä virusten torjunnasta. Suurta mielenkiintoa ovat herättäneet ihmisistä löytyneet lignaanit, jotka ovat muodostuneet elimistön aineenvaihdunnan tuloksena ravinnon mukana nautituista kasvilignaanerista. Näillä uusilla enterolignaaneilla on havaittu suojaavaa vaikutusta moninaisia terveyden haittatiloja kohtaan, kuten eturauhas-, rinta-, suoli- ja muut syövät, sydän- ja verisuonitaudit, aivotaudit, menopaussioireet ja osteoporoosi. Enterolignaanien rakenne muistuttaa endogeenisen 17beta-estradiolihormonin rakennetta, ja enterolignaanien…

Subjects/Keywords: organic Chemistry; organic Chemistry

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APA (6^th Edition):

Raffaelli, B. (2012). Synthesis of lignano-9,9'-lactones and rearrangement studies. (Doctoral Dissertation). University of Helsinki. Retrieved from http://hdl.handle.net/10138/37066

Chicago Manual of Style (16^th Edition):

Raffaelli, Barbara. “Synthesis of lignano-9,9'-lactones and rearrangement studies.” 2012. Doctoral Dissertation, University of Helsinki. Accessed February 21, 2020. http://hdl.handle.net/10138/37066.

MLA Handbook (7^th Edition):

Raffaelli, Barbara. “Synthesis of lignano-9,9'-lactones and rearrangement studies.” 2012. Web. 21 Feb 2020.

Vancouver:

Raffaelli B. Synthesis of lignano-9,9'-lactones and rearrangement studies. [Internet] [Doctoral dissertation]. University of Helsinki; 2012. [cited 2020 Feb 21]. Available from: http://hdl.handle.net/10138/37066.

Council of Science Editors:

Raffaelli B. Synthesis of lignano-9,9'-lactones and rearrangement studies. [Doctoral Dissertation]. University of Helsinki; 2012. Available from: http://hdl.handle.net/10138/37066

Oregon State University

8. Larco, Handell O. Effect of planting method, weed management, and fertilizer on plant growth and yield of newly established organic highbush blueberries.

Degree: MS, Horticulture, 2010, Oregon State University

URL: http://hdl.handle.net/1957/18065

► A 0.4 ha planting of blueberry (Vaccinium corymbosum L.) was established in Oct. 2006 to evaluate the effects of cultivar (Duke and Liberty), planting method… (more)

▼ A 0.4 ha planting of blueberry (Vaccinium corymbosum L.) was established in Oct. 2006 to evaluate the effects of cultivar (Duke and Liberty), planting method (flat versus raised beds), weed management (sawdust mulch and hand-weed control; compost plus sawdust mulch with acetic acid, flaming, and hand-weeding used as needed; and weed mat plus hand-weeding as needed), and type and rate of fertilizer (feather meal and liquid fish emulsion at 29 and 57 kg·ha⁻¹ N) on plant growth, yield, fruit quality, irrigation requirements, and weed presence. The site was certified organic in 2008. Plants grown on raised beds were larger than on flat ground. The leaf nitrogen concentration (%N) in all treatments ranged from slightly below normal to slightly above normal in Aug. 2007 and Aug. 2008, depending on fertilizer treatment and mulch. Plants receiving 57 kg of N·ha⁻¹ as fish emulsion had the highest leaf %N in both years, especially when grown with weed mat mulch, while plants fertilized with the low rate of feather meal had lower than recommended %N, especially in sawdust mulched plots. In Oct. 2007, total plant dry weight (DW) was higher in 'Liberty' than 'Duke', raised beds than flat ground, and when fertilized with fish emulsion rather than feather meal, but was not affected by weed management system. Root DW was greatest in 'Duke' and lowest in plants receiving 57 kg of N·ha⁻¹ as fish emulsion when grown with weed mat. In Oct. 2008, treatment effects on total plant DW were similar to what was observed in 2007. Root DW in 'Duke' was not affected by planting on raised beds, but was greater in plants grown with the organic mulches and fertilized with 29 kg of N·ha⁻¹ of fish emulsion. In 'Liberty', the greatest root DW was in plants with compost plus sawdust mulch and fertilized with 29 kg of N·ha⁻¹ of fish emulsion, while leaf area was greatest in plants grown on raised beds with sawdust mulch and fertilized with 57 kg of N·ha⁻¹ of fish emulsion. In 2008, yield was highest when 29 kg·ha⁻¹ N of fish was applied and when plants were grown on raised beds with weed mat in 'Duke' (0.56 kg·plant⁻¹), and with compost plus sawdust in 'Liberty' (0.57 kg·plant⁻¹). Fruit were firmer at harvest when plants were fertilized with fish rather than feather meal and when soil was mulched with sawdust compared to weed mat. Weed presence increased from 2007 to 2008. Hand-weeding was required in all treatments in both years. Weed mat plots had the fewest weeds, whereas compost plus sawdust mulched plots had the highest weed coverage. In weed mat plots, the only weeds that emerged were in the area of the planting hole. In the compost plus sawdust mulched treatment, acetic acid applied at a 20% concentration on hot days, provided acceptable control of annual weeds, but was moderately effective on perennial weeds. Flaming was somewhat effective when used on small weeds on hot days. Soil water content was lower through the growing season on raised beds than on flat ground, especially under weed mat; this system… Advisors/Committee Members: Strik, Bernadine C. (advisor), Sullivan, Dan (committee member).

Subjects/Keywords: organic; Blueberries – Organic farming

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APA (6^th Edition):

Larco, H. O. (2010). Effect of planting method, weed management, and fertilizer on plant growth and yield of newly established organic highbush blueberries. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/18065

Chicago Manual of Style (16^th Edition):

Larco, Handell O. “Effect of planting method, weed management, and fertilizer on plant growth and yield of newly established organic highbush blueberries.” 2010. Masters Thesis, Oregon State University. Accessed February 21, 2020. http://hdl.handle.net/1957/18065.

MLA Handbook (7^th Edition):

Larco, Handell O. “Effect of planting method, weed management, and fertilizer on plant growth and yield of newly established organic highbush blueberries.” 2010. Web. 21 Feb 2020.

Vancouver:

Larco HO. Effect of planting method, weed management, and fertilizer on plant growth and yield of newly established organic highbush blueberries. [Internet] [Masters thesis]. Oregon State University; 2010. [cited 2020 Feb 21]. Available from: http://hdl.handle.net/1957/18065.

Council of Science Editors:

Larco HO. Effect of planting method, weed management, and fertilizer on plant growth and yield of newly established organic highbush blueberries. [Masters Thesis]. Oregon State University; 2010. Available from: http://hdl.handle.net/1957/18065

Oregon State University

9. Lloyd, Deanna M. Farmer perspectives on the transition to organic agriculture: An Oregon study of farmer motivations and barriers.

Degree: MS, Crop Science, 2016, Oregon State University

URL: http://hdl.handle.net/1957/60003

► In the midst of double-digit growth in market demand for organic products, there is a lag in the growth of certified organic production in the… (more)

Subjects/Keywords: Organic; Organic farming – Oregon

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APA (6^th Edition):

Lloyd, D. M. (2016). Farmer perspectives on the transition to organic agriculture: An Oregon study of farmer motivations and barriers. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/60003

Chicago Manual of Style (16^th Edition):

Lloyd, Deanna M. “Farmer perspectives on the transition to organic agriculture: An Oregon study of farmer motivations and barriers.” 2016. Masters Thesis, Oregon State University. Accessed February 21, 2020. http://hdl.handle.net/1957/60003.

MLA Handbook (7^th Edition):

Lloyd, Deanna M. “Farmer perspectives on the transition to organic agriculture: An Oregon study of farmer motivations and barriers.” 2016. Web. 21 Feb 2020.

Vancouver:

Lloyd DM. Farmer perspectives on the transition to organic agriculture: An Oregon study of farmer motivations and barriers. [Internet] [Masters thesis]. Oregon State University; 2016. [cited 2020 Feb 21]. Available from: http://hdl.handle.net/1957/60003.

Council of Science Editors:

Lloyd DM. Farmer perspectives on the transition to organic agriculture: An Oregon study of farmer motivations and barriers. [Masters Thesis]. Oregon State University; 2016. Available from: http://hdl.handle.net/1957/60003

Université Catholique de Louvain

10. Li, Wenqi. Pervaporation for the separation of transesterification reaction mixtures.

Degree: 2019, Université Catholique de Louvain

URL: http://hdl.handle.net/2078.1/214125

►

The increasing demand of raw materials and the risk of sources depletion are becoming the motivation for the development of new bio-based routes of synthesis… (more)

Subjects/Keywords: Transesterification; Pervaporation; Organic-organic mixture

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APA (6^th Edition):

Li, W. (2019). Pervaporation for the separation of transesterification reaction mixtures. (Thesis). Université Catholique de Louvain. Retrieved from http://hdl.handle.net/2078.1/214125

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Li, Wenqi. “Pervaporation for the separation of transesterification reaction mixtures.” 2019. Thesis, Université Catholique de Louvain. Accessed February 21, 2020. http://hdl.handle.net/2078.1/214125.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Li, Wenqi. “Pervaporation for the separation of transesterification reaction mixtures.” 2019. Web. 21 Feb 2020.

Vancouver:

Li W. Pervaporation for the separation of transesterification reaction mixtures. [Internet] [Thesis]. Université Catholique de Louvain; 2019. [cited 2020 Feb 21]. Available from: http://hdl.handle.net/2078.1/214125.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Li W. Pervaporation for the separation of transesterification reaction mixtures. [Thesis]. Université Catholique de Louvain; 2019. Available from: http://hdl.handle.net/2078.1/214125

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Colorado

11. Nedungadi, Sachin. Starting Materials for the Synthesis of Biradicaloid Heterocycles as Small Chromophores for Singlet Fission.

Degree: MS, Chemistry & Biochemistry, 2016, University of Colorado

URL: https://scholar.colorado.edu/chem_gradetds/191

► The present work is directed toward the synthesis of small chromophores capable of exhibiting singlet fission which can be utilized for application in solar… (more)

Subjects/Keywords: Physical Organic; Synthesis; Organic Chemistry

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APA (6^th Edition):

Nedungadi, S. (2016). Starting Materials for the Synthesis of Biradicaloid Heterocycles as Small Chromophores for Singlet Fission. (Masters Thesis). University of Colorado. Retrieved from https://scholar.colorado.edu/chem_gradetds/191

Chicago Manual of Style (16^th Edition):

Nedungadi, Sachin. “Starting Materials for the Synthesis of Biradicaloid Heterocycles as Small Chromophores for Singlet Fission.” 2016. Masters Thesis, University of Colorado. Accessed February 21, 2020. https://scholar.colorado.edu/chem_gradetds/191.

MLA Handbook (7^th Edition):

Nedungadi, Sachin. “Starting Materials for the Synthesis of Biradicaloid Heterocycles as Small Chromophores for Singlet Fission.” 2016. Web. 21 Feb 2020.

Vancouver:

Nedungadi S. Starting Materials for the Synthesis of Biradicaloid Heterocycles as Small Chromophores for Singlet Fission. [Internet] [Masters thesis]. University of Colorado; 2016. [cited 2020 Feb 21]. Available from: https://scholar.colorado.edu/chem_gradetds/191.

Council of Science Editors:

Nedungadi S. Starting Materials for the Synthesis of Biradicaloid Heterocycles as Small Chromophores for Singlet Fission. [Masters Thesis]. University of Colorado; 2016. Available from: https://scholar.colorado.edu/chem_gradetds/191

McMaster University

12. Jeyakanthan, Ketharagowry. A STUDY OF THE EFFECTS INTRAMOLECULAR π-COMPLEXATION ON THE REACTIVITY OF TRANSIENT ARYL(3-BUTENYL)GERMYLENES.

Degree: MSc, 2014, McMaster University

URL: http://hdl.handle.net/11375/14137

►

Three novel 1-aryl-1-(3-butenyl)germacyclopent-3-enes (26a, 26b and 26c) were synthesized and their photochemistry in hexane solution was studied by steady state and laser flash photolysis… (more)

▼

Three novel 1-aryl-1-(3-butenyl)germacyclopent-3-enes (26a, 26b and 26c) were synthesized and their photochemistry in hexane solution was studied by steady state and laser flash photolysis (LFP) methods. Steady state photolysis of 1-(3-butenyl)-3,4-dimethyl-1-phenylgermacyclopent-3- ene (26a) was found to proceed cleanly to afford the corresponding germylene derived product along with 2,3-dimethyl-1,3-butadiene (DMB) in the presence of acetic acid, methanol and isoprene, suggesting that free (3-butenyl)phenylgermylene (GeBuPh) is the primary photochemically generated species. However, we were unable to detect the germylene by laser flash photolysis with this compound, due to rapid “self –quenching” of the germylene by the precursor. The direct detection of the germylene in solution by laser flash photolysis requires the use of a more strongly absorbing derivative. Indeed, 3-butenylphenylgermylene (GeBuPh) was successfully detected directly by laser flash photolysis of 1-(3-butenyl)-3-methyl-1,4-diphenylgermacyclopent-3-ene (26b) in hexane solution, where it exhibits a UV-Vis absorption band centered at λmax= 490 nm and decays with second order kinetics on the microsecond timescale. In the absence of reactive substrates the decay of GeBuPh is accompanied by the growth of a second transient absorption, assigned to Ge2Bu2Ph2 (34) λmax = 420 nm; the assignment is based on a comparison to the laser flash photolysis of 1,3-dimethyl-1,4- diphenylgermacyclopent-3-ene (26d). Rate constants have been determined for reaction iv of the germylene with selected germylene substrates in order to evaluate the effects of intramolecular π-complexation on its reactivity. The results indicate that GeBuPh exhibits similar reactivity to GeMePh under otherwise identical experimental conditions, and thus show no significant indication of intramolecular π-complexation. With this in mind we have synthesized and studied 1-(3-butenyl)-3-methyl-4- phenyl-1-[3,5-bis(trifluoromethyl)phenyl]germacyclopent-3-ene (26c), which was designed to produce a more strongly electrophilic Ge(II) center in the corresponding germylene. The germylene 46 is detectable as a weakly absorbing transient species with λmax = 490 nm by laser flash photolysis of 26c in hexane solution. Generation of germylene 46 in the presence of THF leads to the formation of the corresponding Lewis acid base complex 48 at λmax = 330 nm. The reactivity of germylene 46 with selected substrates such as AcOH, THF and isoprene has been examined and the results compared to analogous data for the parent germylene GeBuPh. The forward rate constant for germylene 46 with acetic acid is slightly higher than that for GeBuPh, and no evidence for intramolecular complexation with the remote C=C bond could be obtained.

Master of Science (MSc)

Advisors/Committee Members: J.Leigh, William, Vargas-Baca, Ignacio, Chemistry and Chemical Biology.

Subjects/Keywords: Organic Chemistry; Organic Chemistry

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jeyakanthan, K. (2014). A STUDY OF THE EFFECTS INTRAMOLECULAR π-COMPLEXATION ON THE REACTIVITY OF TRANSIENT ARYL(3-BUTENYL)GERMYLENES. (Masters Thesis). McMaster University. Retrieved from http://hdl.handle.net/11375/14137

Chicago Manual of Style (16^th Edition):

Jeyakanthan, Ketharagowry. “A STUDY OF THE EFFECTS INTRAMOLECULAR π-COMPLEXATION ON THE REACTIVITY OF TRANSIENT ARYL(3-BUTENYL)GERMYLENES.” 2014. Masters Thesis, McMaster University. Accessed February 21, 2020. http://hdl.handle.net/11375/14137.

MLA Handbook (7^th Edition):

Jeyakanthan, Ketharagowry. “A STUDY OF THE EFFECTS INTRAMOLECULAR π-COMPLEXATION ON THE REACTIVITY OF TRANSIENT ARYL(3-BUTENYL)GERMYLENES.” 2014. Web. 21 Feb 2020.

Vancouver:

Jeyakanthan K. A STUDY OF THE EFFECTS INTRAMOLECULAR π-COMPLEXATION ON THE REACTIVITY OF TRANSIENT ARYL(3-BUTENYL)GERMYLENES. [Internet] [Masters thesis]. McMaster University; 2014. [cited 2020 Feb 21]. Available from: http://hdl.handle.net/11375/14137.

Council of Science Editors:

Jeyakanthan K. A STUDY OF THE EFFECTS INTRAMOLECULAR π-COMPLEXATION ON THE REACTIVITY OF TRANSIENT ARYL(3-BUTENYL)GERMYLENES. [Masters Thesis]. McMaster University; 2014. Available from: http://hdl.handle.net/11375/14137

University of Oxford

13. Akhtar, Wasim. The α-alkylation of ketones using hydrogen borrowing catalysis.

Degree: PhD, 2018, University of Oxford

URL: http://ora.ox.ac.uk/objects/uuid:a8afbade-c195-4b20-ac37-b710a869304e ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.780421

► Introduction - Hydrogen Borrowing Alkylation Reactions Using Alcohols The introduction reviews the origins of hydrogen borrowing catalysis and how it has been applied to utilise… (more)

▼ Introduction - Hydrogen Borrowing Alkylation Reactions Using Alcohols The introduction reviews the origins of hydrogen borrowing catalysis and how it has been applied to utilise alcohols as alkylating agents. The predominant focus is on highlighting the scope for the use of primary alcohols in the α-alkylation of ketones. Other nucleophiles are discussed with respect to the use of secondary alcohols as alkylating agents. Examples of related methodologies are also briefly discussed. Results and Discussion - Formation of α-Branched Products Using Primary Alcohols This chapter explores the alkylation of several ketone substrates and identifies cyclopropyl ketones as key structural motifs that facilitate the formation of α-branched products using primary alcohols. The development of an iridium-catalysed protocol for this reaction is described, including the optimisation of reaction conditions and investigation of the substrate scope with respect to the ketone and alcohol. The derivatisation of the resulting α-branched cyclopropyl ketones is also explored through utilisation of several ring-opening reactions. Results and Discussion - Formation of β-Branched Products Using Secondary Alcohols This chapter focuses on the development of an Ir-catalysed procedure for the alkylation of methyl ketones using secondary alcohols to form β-branched products. In developing this procedure, ortho-disubstituted aryl ketones were identified as key structural motifs that facilitated the reaction due to the unique properties they possessed. An overview of the optimisation of reaction conditions is provided, followed by exploration of the substrate scope with respect to the methyl ketone and the secondary alcohol. Derivatisation of the resulting β-branched products through bromine-initiated release of the aryl group, followed by trapping with several nucleophiles led to the formation of carboxylic acid derivatives. The final part of the chapter introduces preliminary studies towards the development of an asymmetric route to β-branched products. Results and Discussion - Formation of Cyclic Products Using Diols This chapter explores the development of an unprecedented Ir-catalysed procedure for alkylation of a methyl ketone using diols to form five-, six- and seven-membered carbocyclic rings. The optimisation of the reactions conditions is described followed by a systematic investigation into the diastereoselectivity observed in the formation of the carbocyclic rings. With the formation of cyclohexane rings identified as being most effective under the reaction conditions, these were then explored further in a more general substrate scope. The derivatisation of the cyclic products was also explored through a bromine-mediated release of the aryl group followed by trapping with a variety of nucleophiles. Experimental Section Experimental procedures are provided along with full spectroscopic characterisation of the compounds synthesised.

Subjects/Keywords: Organic Chemistry; Organic compounds – Synthesis

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APA (6^th Edition):

Akhtar, W. (2018). The α-alkylation of ketones using hydrogen borrowing catalysis. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:a8afbade-c195-4b20-ac37-b710a869304e ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.780421

Chicago Manual of Style (16^th Edition):

Akhtar, Wasim. “The α-alkylation of ketones using hydrogen borrowing catalysis.” 2018. Doctoral Dissertation, University of Oxford. Accessed February 21, 2020. http://ora.ox.ac.uk/objects/uuid:a8afbade-c195-4b20-ac37-b710a869304e ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.780421.

MLA Handbook (7^th Edition):

Akhtar, Wasim. “The α-alkylation of ketones using hydrogen borrowing catalysis.” 2018. Web. 21 Feb 2020.

Vancouver:

Akhtar W. The α-alkylation of ketones using hydrogen borrowing catalysis. [Internet] [Doctoral dissertation]. University of Oxford; 2018. [cited 2020 Feb 21]. Available from: http://ora.ox.ac.uk/objects/uuid:a8afbade-c195-4b20-ac37-b710a869304e ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.780421.

Council of Science Editors:

Akhtar W. The α-alkylation of ketones using hydrogen borrowing catalysis. [Doctoral Dissertation]. University of Oxford; 2018. Available from: http://ora.ox.ac.uk/objects/uuid:a8afbade-c195-4b20-ac37-b710a869304e ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.780421

Iowa State University

14. Goswami, Pratik Pran. Development of light- and chemo-sensitive probes for biochemical methods.

Degree: 2015, Iowa State University

URL: https://lib.dr.iastate.edu/etd/14369

► Part I. Photocages, which are light cleavable protecting groups, are an important class of chemical tools that allow light to unmask bioactive substrates with precise… (more)

▼ Part I. Photocages, which are light cleavable protecting groups, are an important class of chemical tools that allow light to unmask bioactive substrates with precise spatiotemporal resolution in biological microenvironments. Due to their effectiveness in biological systems, it has become increasingly important to find logically designed photocages that can cleave under visible light and Near IR conditions, wavelengths with minimal phototoxicity and increased tissue penetration compared to ultraviolet light. The scope of this research is to both rationally design and synthesize a new class of photocage based on the BODIPY moiety, as well as to modify these photocages to absorb in region of the biological window (600-1000 nm), where tissues have maximal transparency. In chapter 1, photocages derived from meso-substituted BODIPY dyes were synthesized that release acetic acid when irradiated with green wavelengths (>500 nm). The structures of the photocages were derived by computationally searching for carbocations with low-energy diradical states as a possible indicator of nearby productive conical intersections. These photocages were found to have superior optical properties than the popular o-nitrobenzyl systems, which make them promising alternatives. The utility of these photocages in living cells was successfully demonstrated by our collaborators (Prof. Emily Smith and Aleem Syed) in cultured S2 cells. In Chapter 2, Knoevenagel type reactions were used to extend the π electron conjugation of the aromatic rings of the BODIPY photocages. This extended conjugation of these BODIPY photocages resulted in a bathochromic shift in absorbance towards red light (>600 nm) and allows cleavage using wavelengths in the biological window. Part II. Self-immolative linkers can be used to trigger the release of an important cargo molecule like a drug or a biomolecule. A variety of trigger stimulants including light, chemo and enzyme are known in literature. However, there is a need for new linker units which would have fast and controllable kinetics of cargo release. During my research, I identified improved self-immolative linker units based on aryl phthalate esters with a modular design, which can tolerate a range of different trigger and cargo units. In Chapter 3, new types of self-immolative linkers based on the phenyl hydrogen phthalate system were synthesized. The fast kinetic rate for the hydrolysis of phenyl hydrogen phthalate system and the resulting benign byproducts promise a robust self-immolative linker system that can be used in biological systems. The linker system was shown to release phenol based cargo molecules including phenol and coumarin dyes upon cleavage by a fluoride sensitive trigger. This type of linker can also be potentially used as an efficient fluoride sensor. In Chapter 4, the scope of self-immolative linkers based on phenyl hydrogen phthalate system was extended. Light and peroxide sensitive triggers were incorporated into the linker system. Coumarin based cargo molecules were used as reporter…

Subjects/Keywords: Organic Chemistry; Organic Chemistry

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APA (6^th Edition):

Goswami, P. P. (2015). Development of light- and chemo-sensitive probes for biochemical methods. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/14369

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Goswami, Pratik Pran. “Development of light- and chemo-sensitive probes for biochemical methods.” 2015. Thesis, Iowa State University. Accessed February 21, 2020. https://lib.dr.iastate.edu/etd/14369.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Goswami, Pratik Pran. “Development of light- and chemo-sensitive probes for biochemical methods.” 2015. Web. 21 Feb 2020.

Vancouver:

Goswami PP. Development of light- and chemo-sensitive probes for biochemical methods. [Internet] [Thesis]. Iowa State University; 2015. [cited 2020 Feb 21]. Available from: https://lib.dr.iastate.edu/etd/14369.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Goswami PP. Development of light- and chemo-sensitive probes for biochemical methods. [Thesis]. Iowa State University; 2015. Available from: https://lib.dr.iastate.edu/etd/14369

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rutgers University

15. Ramanathan, Ahalya. I. New strategy for the synthesis of TMC-95A II. Selective ortho-substitution on substituted aryl rings III. Characterization of steroidal glycosides from easter lily.

Degree: PhD, Chemistry and Chemical Biology, 2011, Rutgers University

URL: http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000057673

►

TMC-95A is a natural product which has demonstrated inhibition activity against the proteasomal pathway. Though its biological activity is proven, the total synthesis of the… (more)

▼

TMC-95A is a natural product which has demonstrated inhibition activity against the proteasomal pathway. Though its biological activity is proven, the total synthesis of the molecule is challenging in many ways. In this thesis the synthetic strategy taken for the partial synthesis of the northern fragment of the TMC-95A is described. Part of the synthetic studies on the northern fragment involves selective ortho substitution on the indole aromatic ring. It was successfully achieved by protecting the para position with a bromo substituent. This selective ortho substitution was studied further on simple aromatic compounds. Bromides and chlorides at the para position were selectively removed in the presence of sensitive functional groups, which allowed this method to be utilized for selective ortho substitution. Model studies on 3-methyloxindole were carried out as part of the TMC-95A project. Although the model study gave very different results as opposed to the TMC-95A tryptophan intermediates, the outcome was interesting and turned out to be a project on its own. The halogen substitution at the α-position and sequential conversion of the halide to hydroxyl group was an interesting discovery. Several arylsulfonylhydroxylamines were investigated for the synthesis of the 1-propynamie, which will be used in the preparation of the TMC-95A Z-enamide sidechain. It was discovered that an arylsulfonylhydroxylamine with a dodecyl chain dissolved in THF and ether solvents at lower temperatures. This property should allow for the in situ synthesis of 1-propynamine. Synthesis of a TMC-278 model compound was successfully accomplished in 3 steps. The key step was the coupling of the pyrimidine intermediate with an aniline, which was achieved after oxidizing the sulfide substituent on the aminopyrimidine substrate. In contrast to literature reports with hydroxypyrimidines, the coupling with the sulfide itself does not occur with aminopyrimidines. A collaborative project with the Gianfagna group in the Department of Plant Science ¬- characterization of saponin compounds isolated from a species of Easter Lily by NMR was also accomplished.

Advisors/Committee Members: Ramanathan, Ahalya (author), Jimenez, Leslie S (chair), Knapp, Spencer (internal member), Taylor, John (internal member), Colandrea, Vincent (outside member).

Subjects/Keywords: Chemistry, Organic; Organic compounds – Synthesis

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APA (6^th Edition):

Ramanathan, A. (2011). I. New strategy for the synthesis of TMC-95A II. Selective ortho-substitution on substituted aryl rings III. Characterization of steroidal glycosides from easter lily. (Doctoral Dissertation). Rutgers University. Retrieved from http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000057673

Chicago Manual of Style (16^th Edition):

Ramanathan, Ahalya. “I. New strategy for the synthesis of TMC-95A II. Selective ortho-substitution on substituted aryl rings III. Characterization of steroidal glycosides from easter lily.” 2011. Doctoral Dissertation, Rutgers University. Accessed February 21, 2020. http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000057673.

MLA Handbook (7^th Edition):

Ramanathan, Ahalya. “I. New strategy for the synthesis of TMC-95A II. Selective ortho-substitution on substituted aryl rings III. Characterization of steroidal glycosides from easter lily.” 2011. Web. 21 Feb 2020.

Vancouver:

Ramanathan A. I. New strategy for the synthesis of TMC-95A II. Selective ortho-substitution on substituted aryl rings III. Characterization of steroidal glycosides from easter lily. [Internet] [Doctoral dissertation]. Rutgers University; 2011. [cited 2020 Feb 21]. Available from: http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000057673.

Council of Science Editors:

Ramanathan A. I. New strategy for the synthesis of TMC-95A II. Selective ortho-substitution on substituted aryl rings III. Characterization of steroidal glycosides from easter lily. [Doctoral Dissertation]. Rutgers University; 2011. Available from: http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000057673

16. Lee, Jennifer Jiyoung. Platform approach to diversification: bio-based methyl coumalate to functionalized aromatics via a Diels-Alder strategy.

Degree: 2014, Iowa State University

URL: https://lib.dr.iastate.edu/etd/14190

► The chemical industry relies on crude oil to manufacture the vast majority of chemicals. However, the increasing demand cannot be supported with the simultaneous decrease… (more)

▼ The chemical industry relies on crude oil to manufacture the vast majority of chemicals. However, the increasing demand cannot be supported with the simultaneous decrease in natural crude oil reserves and increasing prices. Green chemistry solutions may resolve the issue utilizing biorenewable feedstocks, especially for the functionalized aromatic compounds that are ubiquitous in a wide variety of consumer materials. The atom economical Diels-Alder reaction installs two carbon-carbon bonds with high levels of regio-, chemo-, and stereocontrol, which was effectively utilized in a platform approach. Through metabolic engineering, glucose can be converted to malic acid. Afterwards, dimerization and esterification provided the 2-pyrone methyl coumalate as a platform molecule for the methodology. Although unactivated alkenes resulted in aromatic compounds, palladium was required, and with electron-deficient alkene dienophiles, mixtures of regioisomers were observed. In contrast, we developed an inverse electron-demand Diels-Alder/retro-Diels-Alder/elimination domino methodology from methyl coumalate with electron-rich olefins to regioselectively furnish diverse aromatic compounds. Vinyl ether dienophiles provided a broad range of aromatic compounds, which were equipped with an alkoxy leaving group to facilitate aromatization without a catalyst. The scope was expanded with readily prepared acetal and orthoester dienophile equivalents that could be utilized in crude form. As practical bench-stable compounds, elimination occurred under the thermal conditions to reveal the dienophile. The metal-free, one-pot domino sequence efficiently provided high yields and regioselectivities for the desired aromatic compounds. The expansive range of accessible aromatic compounds through the methodology included carbazoles, tricyclic, fused, anisole, and biphenyl systems. Notably, captodative dienophile derivatives from methyl pyruvate provided a 100% biorenewable formal synthesis to terephthalic acid with dimethyl terephthalate as the intermediate. As commodity co-monomers for poly(ethylene terephthalate), the green methodology was further optimized to remove the reaction solvent and recrystallize the product in up to 95% yield. In summary, methyl coumalate represents a convenient bio-based platform for diverse aromatics which fulfills many green chemistry principles in the progress toward a sustainable future.

Subjects/Keywords: Organic Chemistry; Organic Chemistry

3 more images…

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APA (6^th Edition):

Lee, J. J. (2014). Platform approach to diversification: bio-based methyl coumalate to functionalized aromatics via a Diels-Alder strategy. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/14190

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lee, Jennifer Jiyoung. “Platform approach to diversification: bio-based methyl coumalate to functionalized aromatics via a Diels-Alder strategy.” 2014. Thesis, Iowa State University. Accessed February 21, 2020. https://lib.dr.iastate.edu/etd/14190.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lee, Jennifer Jiyoung. “Platform approach to diversification: bio-based methyl coumalate to functionalized aromatics via a Diels-Alder strategy.” 2014. Web. 21 Feb 2020.

Vancouver:

Lee JJ. Platform approach to diversification: bio-based methyl coumalate to functionalized aromatics via a Diels-Alder strategy. [Internet] [Thesis]. Iowa State University; 2014. [cited 2020 Feb 21]. Available from: https://lib.dr.iastate.edu/etd/14190.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lee JJ. Platform approach to diversification: bio-based methyl coumalate to functionalized aromatics via a Diels-Alder strategy. [Thesis]. Iowa State University; 2014. Available from: https://lib.dr.iastate.edu/etd/14190

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Iowa State University

17. Bhuwalka, Achala. Design and synthesis of novel heterocycles for organic semiconducting materials.

Degree: 2014, Iowa State University

URL: https://lib.dr.iastate.edu/etd/14123

► Organic semiconductors have attracted much attention as alternatives to silicon based photovoltaic technology. Currently, the best power conversion efficiencies use small molecules and conjugated polymers… (more)

Subjects/Keywords: Organic Chemistry; Organic Chemistry

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APA (6^th Edition):

Bhuwalka, A. (2014). Design and synthesis of novel heterocycles for organic semiconducting materials. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/14123

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bhuwalka, Achala. “Design and synthesis of novel heterocycles for organic semiconducting materials.” 2014. Thesis, Iowa State University. Accessed February 21, 2020. https://lib.dr.iastate.edu/etd/14123.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bhuwalka, Achala. “Design and synthesis of novel heterocycles for organic semiconducting materials.” 2014. Web. 21 Feb 2020.

Vancouver:

Bhuwalka A. Design and synthesis of novel heterocycles for organic semiconducting materials. [Internet] [Thesis]. Iowa State University; 2014. [cited 2020 Feb 21]. Available from: https://lib.dr.iastate.edu/etd/14123.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bhuwalka A. Design and synthesis of novel heterocycles for organic semiconducting materials. [Thesis]. Iowa State University; 2014. Available from: https://lib.dr.iastate.edu/etd/14123

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Iowa State University

18. Drochner, Dana Lynn. Rational design and characterization of electron-deficient heterocycles for organic photovoltaic materials.

Degree: 2015, Iowa State University

URL: https://lib.dr.iastate.edu/etd/14793

► This research explores the synthesis and evaluation of new building blocks and polymers for organic photovoltaic materials. Through the development of new synthetic routes and… (more)

Subjects/Keywords: Organic Chemistry; Chemistry; Organic Chemistry

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APA (6^th Edition):

Drochner, D. L. (2015). Rational design and characterization of electron-deficient heterocycles for organic photovoltaic materials. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/14793

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Drochner, Dana Lynn. “Rational design and characterization of electron-deficient heterocycles for organic photovoltaic materials.” 2015. Thesis, Iowa State University. Accessed February 21, 2020. https://lib.dr.iastate.edu/etd/14793.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Drochner, Dana Lynn. “Rational design and characterization of electron-deficient heterocycles for organic photovoltaic materials.” 2015. Web. 21 Feb 2020.

Vancouver:

Drochner DL. Rational design and characterization of electron-deficient heterocycles for organic photovoltaic materials. [Internet] [Thesis]. Iowa State University; 2015. [cited 2020 Feb 21]. Available from: https://lib.dr.iastate.edu/etd/14793.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Drochner DL. Rational design and characterization of electron-deficient heterocycles for organic photovoltaic materials. [Thesis]. Iowa State University; 2015. Available from: https://lib.dr.iastate.edu/etd/14793

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of California, Berkeley

19. Shunatona, Hunter Paul. Catalyzed Intramolecular Aminocyclization Reactions.

Degree: 2014, University of California, Berkeley

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=3640640

► The scope of my doctoral studies was intended to address the specific synthetic challenge of the construction of heterocycles. As a result, the synthesis… (more)

▼ The scope of my doctoral studies was intended to address the specific synthetic challenge of the construction of heterocycles. As a result, the synthesis of nitrogen-containing heterocycles has been a key research focus during my graduate career and with this in mind, new methods for their construction were investigated. In Chapter 1 of this dissertation, an aminoarylation reaction methodology was developed. This system utilized gold catalysis to accomplish an intramolecular aminocyclization followed by a aryl cross-coupling event to accomplish an overall aminoarylation. The strong oxidant Selectfluor was chosen as the terminal oxidant in the reaction due to its previous use in metal-catalyzed reactions. Experimentation and literature precedent led to the use of a bimetallic gold complex to facilitate the Au(I)–Au(III) oxidation which is typically a synthetic challenge. An unusual reaction mechanism was proposed for this reaction as a result of experimental probing in conjunction with a series of DFT calculations. This oxidative gold-catalyzed aminoarylation was found to provide access to a variety of heterocycles in a racemic fashion. The second chapter continues with the theme of aminocyclization reactions but focuses on developing an asymmetric methodology. Previous work in our group had shown that dicationic Selectfluor is insoluble and generally unreactive in non-polar organic solvents. This reagent could be rendered useful after undergoing a phase-transfer event when used with lipophilic chiral phosphoric acids and accomplishing an enantioselective fluorination. However only cyclizations involving oxygen nucleophiles were disclosed. With this in mind, studies were undertaken to extend this phase-transfer technology towards aminocyclization reactions. It was found that an enantioselective 1,4-fluoroamination reaction could be accomplished with different diene substrate scaffolds. Chapter 3 concentrates on another extension of the phase-transfer methodology utilizing a aryldiazonium salts. Literature precedent had shown that the terminal nitrogen of these reagents could serve as electrophiles for carbon-based nucleophiles, and their monocationic nature would allow for them to be sparingly soluble in organic solvents, thus revealing them as ideal candidates for phase-transfer reactivity. The reaction of these electrophilic nitrogen sources with tryptamine-based substrates allowed for the enantioselective construction of C3-functionalized pyrroloindolines which are an exotic framework found in natural products. The diazenated pyrroloindoline products could be further elaborated using photochemistry to provide C3-arylated compounds, exhibiting the versatility of this methodology for the construction of C–C or C–N bonds at the C3 position on the pyrroloindoline scaffold.

Subjects/Keywords: Chemistry; Organic

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Shunatona, H. P. (2014). Catalyzed Intramolecular Aminocyclization Reactions. (Thesis). University of California, Berkeley. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=3640640

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Shunatona, Hunter Paul. “Catalyzed Intramolecular Aminocyclization Reactions.” 2014. Thesis, University of California, Berkeley. Accessed February 21, 2020. http://pqdtopen.proquest.com/#viewpdf?dispub=3640640.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Shunatona, Hunter Paul. “Catalyzed Intramolecular Aminocyclization Reactions.” 2014. Web. 21 Feb 2020.

Vancouver:

Shunatona HP. Catalyzed Intramolecular Aminocyclization Reactions. [Internet] [Thesis]. University of California, Berkeley; 2014. [cited 2020 Feb 21]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3640640.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Shunatona HP. Catalyzed Intramolecular Aminocyclization Reactions. [Thesis]. University of California, Berkeley; 2014. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3640640

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

San Jose State University

20. Kozhikote, Veena Menon. Evaluation of a silica hydride-based undecynoic acid stationary phase for high performance liquid chromatography.

Degree: 2017, San Jose State University

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10255039

► Undecynoic acid (UDA) attached to a silica hydride surface has been found to exhibit weak cationic exchange properties and an aqueous normal phase (ANP)… (more)

Subjects/Keywords: Organic chemistry

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APA (6^th Edition):

Kozhikote, V. M. (2017). Evaluation of a silica hydride-based undecynoic acid stationary phase for high performance liquid chromatography. (Thesis). San Jose State University. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10255039

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kozhikote, Veena Menon. “Evaluation of a silica hydride-based undecynoic acid stationary phase for high performance liquid chromatography.” 2017. Thesis, San Jose State University. Accessed February 21, 2020. http://pqdtopen.proquest.com/#viewpdf?dispub=10255039.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kozhikote, Veena Menon. “Evaluation of a silica hydride-based undecynoic acid stationary phase for high performance liquid chromatography.” 2017. Web. 21 Feb 2020.

Vancouver:

Kozhikote VM. Evaluation of a silica hydride-based undecynoic acid stationary phase for high performance liquid chromatography. [Internet] [Thesis]. San Jose State University; 2017. [cited 2020 Feb 21]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10255039.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kozhikote VM. Evaluation of a silica hydride-based undecynoic acid stationary phase for high performance liquid chromatography. [Thesis]. San Jose State University; 2017. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10255039

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

21. Suhan, Natalie. New Liquid Crystalline [2]Rotaxanes.

Degree: PhD, Chemistry and Biochemistry, 2009, National Library of Canada

URL: http://scholar.uwindsor.ca/etd/399

► This thesis presents design, synthesis and characterization of a range of new liquid crystalline interlocked molecules and to study structure-property relationships between rotaxane design and… (more)

▼ This thesis presents design, synthesis and characterization of a range of new liquid crystalline interlocked molecules and to study structure-property relationships between rotaxane design and mesomorphism. Chapter 1 introduces concepts of supramolecular chemistry and liquid crystals and cooperative effect between [2]rotaxane and liquid crystals towards functional molecular machines. In Chapter 2, a systematic approach to introduce liquid crystallinity into the 1,2-bis(pyridinium)ethane/DB24C8 motif is described. The chapter begins with synthesis and purification of dumbbells (without macrocycle) and [2]rotaxanes (with macrocycle) substituted with purely aliphatic extended 3,5-disubstituted stoppers with increasing alkyl chain length. Chapter continues with phase characterization and structure-property relationships between dumbbells and rotaxanes. The dodecane chain was sufficiently fluid to induce smectic mesomorphism in both the dumbbell and [2]rotaxane, with [2]rotaxane forming SmA phase by POM and XRD analysis. Chapter 3 presents an extension to Chapter 2 with the addition of longer straight chain and branching aliphatic chains to our 1,2-bis(pyridinium)ethane/DB24C8 rotaxane motif to study structure-property relationships and phase characteristics. The ability of the side-chain to self-organized showed large differences in phase behaviour. The pentadecane straight chain extended [2]rotaxane exhibited a unidentified mesophase, the hexadecane straight chain [2]rotaxane showed SmA mesomorphism, the branched hexadecane and the hyperbranched [2]rotaxanes both showed lamellar soft crystal phases. Chapter 4 describes the effect of applying groups typical for low molecular weight LCs (siloxanes) to our 1,2-bis(pyridinium)ethane/DB24C8 motif and a modified rotaxane design based on a bis(oxymethylbenzylpyridinium)ethane/DB24C8 motif. The structure-property relations between both systems, and in comparison with the dodecane chain substituted systems, are presented. The new design revealed SmC mesophases for both the dodecane and siloxane substituted [2]rotaxanes. Chapter 5 focuses on the introduction of chirality into the siloxane substituted [2]rotaxane with SmC mesomorphism presented in Chapter 4. Chirality was introduced via a chiral anion as well as incorporation of a chiral crown. Observations to changes in the superstructure from the incorporation of chirality is addressed. The chiral anion exchanged [2]rotaxane showed SmC* mesomorphism and the chiral crown [2]rotaxane showed SmX* mesomorphism. Chapter 6 presents the design and synthesis of a molecular shuttle based upon the structure-property relations determined from the previous chapters. Advisors/Committee Members: Loeb, Stephen J.(Chemistry and Biochemistry).

Subjects/Keywords: Chemistry; Organic.

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APA (6^th Edition):

Suhan, N. (2009). New Liquid Crystalline [2]Rotaxanes. (Doctoral Dissertation). National Library of Canada. Retrieved from http://scholar.uwindsor.ca/etd/399

Chicago Manual of Style (16^th Edition):

Suhan, Natalie. “New Liquid Crystalline [2]Rotaxanes.” 2009. Doctoral Dissertation, National Library of Canada. Accessed February 21, 2020. http://scholar.uwindsor.ca/etd/399.

MLA Handbook (7^th Edition):

Suhan, Natalie. “New Liquid Crystalline [2]Rotaxanes.” 2009. Web. 21 Feb 2020.

Vancouver:

Suhan N. New Liquid Crystalline [2]Rotaxanes. [Internet] [Doctoral dissertation]. National Library of Canada; 2009. [cited 2020 Feb 21]. Available from: http://scholar.uwindsor.ca/etd/399.

Council of Science Editors:

Suhan N. New Liquid Crystalline [2]Rotaxanes. [Doctoral Dissertation]. National Library of Canada; 2009. Available from: http://scholar.uwindsor.ca/etd/399

22. Gallardo-Macias, Ricardo. Sn (II) compounds as novel catalysts for the Kabachnik-Fields reaction| Studies in the synthesis of alpha-aminophosphonates under solvent free conditions and Synthesis of phosphonates and phosphates as reversible and irreversible inhibitors of butyrylcholinesterase.

Degree: 2009, California State University, Long Beach

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=1472277

► Part A. Aminophosphonates have been studied and characterized due to their biological activity such as enzyme inhibitors, antibiotics, peptide mimics, herbicides, and pharmacological agents.… (more)

Subjects/Keywords: Chemistry; Organic

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APA (6^th Edition):

Gallardo-Macias, R. (2009). Sn (II) compounds as novel catalysts for the Kabachnik-Fields reaction| Studies in the synthesis of alpha-aminophosphonates under solvent free conditions and Synthesis of phosphonates and phosphates as reversible and irreversible inhibitors of butyrylcholinesterase. (Thesis). California State University, Long Beach. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=1472277

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Gallardo-Macias, Ricardo. “Sn (II) compounds as novel catalysts for the Kabachnik-Fields reaction| Studies in the synthesis of alpha-aminophosphonates under solvent free conditions and Synthesis of phosphonates and phosphates as reversible and irreversible inhibitors of butyrylcholinesterase.” 2009. Thesis, California State University, Long Beach. Accessed February 21, 2020. http://pqdtopen.proquest.com/#viewpdf?dispub=1472277.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Gallardo-Macias, Ricardo. “Sn (II) compounds as novel catalysts for the Kabachnik-Fields reaction| Studies in the synthesis of alpha-aminophosphonates under solvent free conditions and Synthesis of phosphonates and phosphates as reversible and irreversible inhibitors of butyrylcholinesterase.” 2009. Web. 21 Feb 2020.

Vancouver:

Gallardo-Macias R. Sn (II) compounds as novel catalysts for the Kabachnik-Fields reaction| Studies in the synthesis of alpha-aminophosphonates under solvent free conditions and Synthesis of phosphonates and phosphates as reversible and irreversible inhibitors of butyrylcholinesterase. [Internet] [Thesis]. California State University, Long Beach; 2009. [cited 2020 Feb 21]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=1472277.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Gallardo-Macias R. Sn (II) compounds as novel catalysts for the Kabachnik-Fields reaction| Studies in the synthesis of alpha-aminophosphonates under solvent free conditions and Synthesis of phosphonates and phosphates as reversible and irreversible inhibitors of butyrylcholinesterase. [Thesis]. California State University, Long Beach; 2009. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=1472277

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

The University of Arizona

23. Zhurakovskyi, Oleksandr. Novel dual Lewis acid-Lewis base binders as potential hydrogen and carbonyl activators.

Degree: 2010, The University of Arizona

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=1476523

► A series of new “frustrated Lewis pairs” (FLPs), including chiral versions, with a predefined spatial relationship between the basic and acidic centers is proposed.… (more)

Subjects/Keywords: Chemistry; Organic

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APA (6^th Edition):

Zhurakovskyi, O. (2010). Novel dual Lewis acid-Lewis base binders as potential hydrogen and carbonyl activators. (Thesis). The University of Arizona. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=1476523

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zhurakovskyi, Oleksandr. “Novel dual Lewis acid-Lewis base binders as potential hydrogen and carbonyl activators.” 2010. Thesis, The University of Arizona. Accessed February 21, 2020. http://pqdtopen.proquest.com/#viewpdf?dispub=1476523.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zhurakovskyi, Oleksandr. “Novel dual Lewis acid-Lewis base binders as potential hydrogen and carbonyl activators.” 2010. Web. 21 Feb 2020.

Vancouver:

Zhurakovskyi O. Novel dual Lewis acid-Lewis base binders as potential hydrogen and carbonyl activators. [Internet] [Thesis]. The University of Arizona; 2010. [cited 2020 Feb 21]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=1476523.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zhurakovskyi O. Novel dual Lewis acid-Lewis base binders as potential hydrogen and carbonyl activators. [Thesis]. The University of Arizona; 2010. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=1476523

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

24. Phillips, Straun B. Electronic considerations in ligand assisted transition metal catalyzed oxidations of alkenes to enones.

Degree: 2012, California State University, Long Beach

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=1507778

► Ligand assisted transition metal catalysis used in the oxidation of alkenes is an area of research that is always growing. Yet, there is a… (more)

Subjects/Keywords: Chemistry; Organic

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APA (6^th Edition):

Phillips, S. B. (2012). Electronic considerations in ligand assisted transition metal catalyzed oxidations of alkenes to enones. (Thesis). California State University, Long Beach. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=1507778

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Phillips, Straun B. “Electronic considerations in ligand assisted transition metal catalyzed oxidations of alkenes to enones.” 2012. Thesis, California State University, Long Beach. Accessed February 21, 2020. http://pqdtopen.proquest.com/#viewpdf?dispub=1507778.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Phillips, Straun B. “Electronic considerations in ligand assisted transition metal catalyzed oxidations of alkenes to enones.” 2012. Web. 21 Feb 2020.

Vancouver:

Phillips SB. Electronic considerations in ligand assisted transition metal catalyzed oxidations of alkenes to enones. [Internet] [Thesis]. California State University, Long Beach; 2012. [cited 2020 Feb 21]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=1507778.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Phillips SB. Electronic considerations in ligand assisted transition metal catalyzed oxidations of alkenes to enones. [Thesis]. California State University, Long Beach; 2012. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=1507778

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Harvard University

25. Uyeda, Christopher Hiroki. Catalysis of the Claisen Rearrangement by Hydrogen-Bond Donors.

Degree: 2011, Harvard University

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=3446170

► Since its initial report nearly a century ago, the [3,3]-sigmatropic rearrangement of allyl vinyl ethers—the Claisen rearrangement—has emerged as a powerful carbon–carbon bond-forming transformation… (more)

▼ Since its initial report nearly a century ago, the [3,3]-sigmatropic rearrangement of allyl vinyl ethers—the Claisen rearrangement—has emerged as a powerful carbon–carbon bond-forming transformation in the synthesis of structurally and stereochemically complex organic molecules. A principle feature of the Claisen rearrangement that underlies its synthetic utility is the high and predictable diastereoselectivity imparted by the pericyclic mechanism, allowing α- and β-stereogenic carbonyl compounds of either the syn or anti relative configurations to be prepared from precursors bearing the appropriate alkene geometries. Recent progress in catalytic asymmetric methodology has culminated in the first examples of highly enantioselective rearrangements of achiral substrates using Lewis acid complexes; however, limitations in the scope of these reactions persist due to challenges associated with competing background rearrangement and the strong binding affinity of the products. Chorismate mutases accelerate the Claisen rearrangement of chorismate by over a million-fold and are proposed to achieve catalysis in large part by hydrogen-bond donation from cationic lysine and arginine residues in the active site. Consistent with this mechanism of substrate activation, we have identified monofunctional guanidinium ions bearing non-coordinating counteranions as effective catalysts for the rearrangement of a variety of substrates in non-polar organic solvents. The development of a chiral pyrrolo-cyclohexylamine-derived guanidinium ion catalyst for the enantioselective rearrangement of O-allyl α-ketoester substrates is described in chapter two. X-ray analysis in combination with computational modeling studies has led to the identification of an intramolecular π–cation interaction between the heterocycle and guanidinium ion groups that defines the overall structure of the catalyst and minimizes the number of energetically accessible conformations. From our catalyst optimization studies, a beneficial effect on both rate and enantioselectivity was observed of catalyst aryl substituents, which are appropriately positioned to provide π-stabilization of the cationic allyl fragment in the Claisen rearrangement transition state. The third chapter outlines our mechanistic studies of this secondary non-covalent interaction and its importance in asymmetric induction. The final chapter describes an extension of this catalyst system to the rearrangement of O-allyl β-ketoester substrates, which provides selective access to branched allylation products with control over both relative and absolute stereochemistry. Applications to the direct preparation of contiguous quaternary stereogenic arrays in natural product structures are discussed.

Subjects/Keywords: Chemistry; Organic

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APA (6^th Edition):

Uyeda, C. H. (2011). Catalysis of the Claisen Rearrangement by Hydrogen-Bond Donors. (Thesis). Harvard University. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=3446170

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Uyeda, Christopher Hiroki. “Catalysis of the Claisen Rearrangement by Hydrogen-Bond Donors.” 2011. Thesis, Harvard University. Accessed February 21, 2020. http://pqdtopen.proquest.com/#viewpdf?dispub=3446170.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Uyeda, Christopher Hiroki. “Catalysis of the Claisen Rearrangement by Hydrogen-Bond Donors.” 2011. Web. 21 Feb 2020.

Vancouver:

Uyeda CH. Catalysis of the Claisen Rearrangement by Hydrogen-Bond Donors. [Internet] [Thesis]. Harvard University; 2011. [cited 2020 Feb 21]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3446170.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Uyeda CH. Catalysis of the Claisen Rearrangement by Hydrogen-Bond Donors. [Thesis]. Harvard University; 2011. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3446170

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Columbia University

26. Baxter, Jenny M. Enantioselective Mannich-type Reactions Promoted by Strained Silane Lewis Acids| Selective Generation of Two Contiguous Stereocenters and Entry into a Novel Class of Pyrrolidines.

Degree: 2011, Columbia University

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=3447871

► Efficient highly enantioselective nitro-Mannich and Mannich-type reactions with hydrazones promoted by strained silanes are described. Nitro-Mannich reactions of aromatic benzoyl hydrazones and the TES… (more)

Subjects/Keywords: Chemistry; Organic

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APA (6^th Edition):

Baxter, J. M. (2011). Enantioselective Mannich-type Reactions Promoted by Strained Silane Lewis Acids| Selective Generation of Two Contiguous Stereocenters and Entry into a Novel Class of Pyrrolidines. (Thesis). Columbia University. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=3447871

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Baxter, Jenny M. “Enantioselective Mannich-type Reactions Promoted by Strained Silane Lewis Acids| Selective Generation of Two Contiguous Stereocenters and Entry into a Novel Class of Pyrrolidines.” 2011. Thesis, Columbia University. Accessed February 21, 2020. http://pqdtopen.proquest.com/#viewpdf?dispub=3447871.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Baxter, Jenny M. “Enantioselective Mannich-type Reactions Promoted by Strained Silane Lewis Acids| Selective Generation of Two Contiguous Stereocenters and Entry into a Novel Class of Pyrrolidines.” 2011. Web. 21 Feb 2020.

Vancouver:

Baxter JM. Enantioselective Mannich-type Reactions Promoted by Strained Silane Lewis Acids| Selective Generation of Two Contiguous Stereocenters and Entry into a Novel Class of Pyrrolidines. [Internet] [Thesis]. Columbia University; 2011. [cited 2020 Feb 21]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3447871.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Baxter JM. Enantioselective Mannich-type Reactions Promoted by Strained Silane Lewis Acids| Selective Generation of Two Contiguous Stereocenters and Entry into a Novel Class of Pyrrolidines. [Thesis]. Columbia University; 2011. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3447871

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

27. Mundal, Devon Allen. Development of N-Allylhydrazone-Based Transformations.

Degree: 2012, Northwestern University

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=3489370

► The [3,3]-sigmatropic rearrangement of N-allylhydrazones is a potentially powerful, yet under-explored reaction that forges a new carbon–carbon bond while generating a labile monoalkyldiazine intermediate.… (more)

Subjects/Keywords: Chemistry; Organic

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APA (6^th Edition):

Mundal, D. A. (2012). Development of N-Allylhydrazone-Based Transformations. (Thesis). Northwestern University. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=3489370

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mundal, Devon Allen. “Development of N-Allylhydrazone-Based Transformations.” 2012. Thesis, Northwestern University. Accessed February 21, 2020. http://pqdtopen.proquest.com/#viewpdf?dispub=3489370.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mundal, Devon Allen. “Development of N-Allylhydrazone-Based Transformations.” 2012. Web. 21 Feb 2020.

Vancouver:

Mundal DA. Development of N-Allylhydrazone-Based Transformations. [Internet] [Thesis]. Northwestern University; 2012. [cited 2020 Feb 21]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3489370.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mundal DA. Development of N-Allylhydrazone-Based Transformations. [Thesis]. Northwestern University; 2012. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3489370

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Colorado State University

28. Vora, Harit. N-heterocyclic carbene catalyzed alpha-redox reaction| Catalytic synthesis of amides and carboxylic acids.

Degree: 2012, Colorado State University

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=3489925

► N-heterocyclic carbene catalyzed alpha-redox reaction has been utilized towards the catalytic synthesis of amides utilizing amines and substoichiometric quantities of an acyl transfer reagent… (more)

Subjects/Keywords: Chemistry; Organic

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Vora, H. (2012). N-heterocyclic carbene catalyzed alpha-redox reaction| Catalytic synthesis of amides and carboxylic acids. (Thesis). Colorado State University. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=3489925

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Vora, Harit. “N-heterocyclic carbene catalyzed alpha-redox reaction| Catalytic synthesis of amides and carboxylic acids.” 2012. Thesis, Colorado State University. Accessed February 21, 2020. http://pqdtopen.proquest.com/#viewpdf?dispub=3489925.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Vora, Harit. “N-heterocyclic carbene catalyzed alpha-redox reaction| Catalytic synthesis of amides and carboxylic acids.” 2012. Web. 21 Feb 2020.

Vancouver:

Vora H. N-heterocyclic carbene catalyzed alpha-redox reaction| Catalytic synthesis of amides and carboxylic acids. [Internet] [Thesis]. Colorado State University; 2012. [cited 2020 Feb 21]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3489925.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Vora H. N-heterocyclic carbene catalyzed alpha-redox reaction| Catalytic synthesis of amides and carboxylic acids. [Thesis]. Colorado State University; 2012. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3489925

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of South Carolina

29. Dong, Z. Eric. Progress toward the synthesis of an osmium-diimine electron tunneling wire and synthesis of racemic fusarochromanone-(+/-)-FC-101.

Degree: 2009, University of South Carolina

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=3336687

► Chapter 1. The preparation of the dmbpy-C6F4-C6F4-Im ligand (6) had been modified by changing the synthetic order. Consequently, the isolated yield was increased significantly… (more)

Subjects/Keywords: Chemistry; Organic

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Dong, Z. E. (2009). Progress toward the synthesis of an osmium-diimine electron tunneling wire and synthesis of racemic fusarochromanone-(+/-)-FC-101. (Thesis). University of South Carolina. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=3336687

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Dong, Z Eric. “Progress toward the synthesis of an osmium-diimine electron tunneling wire and synthesis of racemic fusarochromanone-(+/-)-FC-101.” 2009. Thesis, University of South Carolina. Accessed February 21, 2020. http://pqdtopen.proquest.com/#viewpdf?dispub=3336687.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Dong, Z Eric. “Progress toward the synthesis of an osmium-diimine electron tunneling wire and synthesis of racemic fusarochromanone-(+/-)-FC-101.” 2009. Web. 21 Feb 2020.

Vancouver:

Dong ZE. Progress toward the synthesis of an osmium-diimine electron tunneling wire and synthesis of racemic fusarochromanone-(+/-)-FC-101. [Internet] [Thesis]. University of South Carolina; 2009. [cited 2020 Feb 21]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3336687.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Dong ZE. Progress toward the synthesis of an osmium-diimine electron tunneling wire and synthesis of racemic fusarochromanone-(+/-)-FC-101. [Thesis]. University of South Carolina; 2009. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3336687

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Georgetown University

30. Liu, Shuanglong. Asymmetric catalysis with a C2-symmetric bisoxazolidine and enantioselective sensing using axially chiral diacridylnaphthalenes.

Degree: 2009, Georgetown University

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=3339924

► The first bisoxazolidine ligand was prepared and applied in several asymmetric reactions. The bisoxazolidine was synthesized with high yield and high diastereoselectivity from cis-1-amino-2-indanol… (more)

▼ The first bisoxazolidine ligand was prepared and applied in several asymmetric reactions. The bisoxazolidine was synthesized with high yield and high diastereoselectivity from cis-1-amino-2-indanol and 1,2-cyclohexanedione in the presence of catalytic amounts of formic acid. Bisoxazolidine-catalyzed enantioselective alkylations and alkynylations of aromatic and aliphatic aldehydes gave chiral secondary alcohols in high yields and enantiomeric excess. Moreover, this new catalyst was successfully employed in the asymmetric Henry reaction, generating β-hydroxy nitroalkanes with excellent results. Mechanistic studies of the bisoxazolidine-catalyzed reactions showed a positive nonlinear effect as a result of a unique dual phase behavior favoring enrichment of the major enantiomer in solution. It is possible that these results have important implications for the interpretation of nonlinear effects obtained under heterogeneous conditions and the origin of homochirality in nature. Highly congested, conformationally stable 1,8-bis(3'-tert-butyl-9'-acridyl)naphthalene was prepared in 51% yield by Pd-catalyzed Stille cross-coupling of 1,8-dibromonaphthalene and 3-tert-butyl-9-tributylstannylacridine in the presence of CuO. Crystallographic studies showed that the anti-isomer exhibits a rigid structure with two cofacial acridyl rings generating a C₂-symmetric chiral pocket, which was successfully used for enantioselective sensing of a variety of chiral carboxylic acids using fluorescence spectroscopy. The sensor was used to develop into a practical method that allows determination of concentration and enantiomeric composition of chiral samples. 1,8-Bis(3'- tert-butyl-9'-acridyl)naphthalene N,N'-dioxide was found to form a highly fluorescent Sc(III) complex which was employed in a sensitive indicator-displacement assay for stereochemical analysis of chiral amino alcohols. Finally, a highly regioselective Cu/Cu₂O-catalyzed cross-coupling reaction for C-N and C-S bond formation with 2-halobenzoic acids and amines or thiols was developed. This reaction procedure gives access to anthranilic acids which have important pharmaceutical applications, and it complements existing methods, tolerates a variety of functional groups and gives high to excellent yields with a broad range of reagents.

Subjects/Keywords: Chemistry; Organic

Record Details Similar Records Cite « Share

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Liu, S. (2009). Asymmetric catalysis with a C2-symmetric bisoxazolidine and enantioselective sensing using axially chiral diacridylnaphthalenes. (Thesis). Georgetown University. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=3339924

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Liu, Shuanglong. “Asymmetric catalysis with a C2-symmetric bisoxazolidine and enantioselective sensing using axially chiral diacridylnaphthalenes.” 2009. Thesis, Georgetown University. Accessed February 21, 2020. http://pqdtopen.proquest.com/#viewpdf?dispub=3339924.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Liu, Shuanglong. “Asymmetric catalysis with a C2-symmetric bisoxazolidine and enantioselective sensing using axially chiral diacridylnaphthalenes.” 2009. Web. 21 Feb 2020.

Vancouver:

Liu S. Asymmetric catalysis with a C2-symmetric bisoxazolidine and enantioselective sensing using axially chiral diacridylnaphthalenes. [Internet] [Thesis]. Georgetown University; 2009. [cited 2020 Feb 21]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3339924.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Liu S. Asymmetric catalysis with a C2-symmetric bisoxazolidine and enantioselective sensing using axially chiral diacridylnaphthalenes. [Thesis]. Georgetown University; 2009. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3339924

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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