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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

Bioprocess development for asymmetric reductions by Saccharomyces cerevisiae enzymes

Parekh, Parag A. January 2006 (has links)
Thesis (M.S.)--University of Florida, 2006. / Title from title page of source document. Document formatted into pages; contains 68 pages. Includes vita. Includes bibliographical references.

Synthesis and effectiveness of a new cyclohexyl chiral auxiliary and studies towards the systhesis of bicyclo[4.4.4]tetradeca-3,8,12-triyne /

Christie, Hamish S. January 1999 (has links) (PDF)
Thesis (M. Sc.)--University of Adelaide, Dept. of Chemistry, 1999. / Includes bibliographical references (leaves 100-102).

Non-stabilized nucleophiles in Cu-catalyzed asymmetric synthesis

You, Hengzhi January 2016 (has links)
This thesis describes the study of organozirconium reagents used in copper-catalyzed asymmetric synthesis. Explorations on the asymmetric allylic alkylation of linear substrates, the cyclic substrates and enantioselective desymmetrization of meso compounds including the oxabicyclic alkenes and meso-allyl substrates are reported here. <strong>Chapter 1</strong> has a brief overview about general methods used in asymmetric catalysis. In particular, more relevant introduction about catalytic asymmetric allylic substitution and asymmetric desymmetrization of meso compounds is given. <strong>Chapter 2</strong> describes the investigation of organozirconium reagents used in copper-catalyzed asymmetric allylic alkylation of linear substrates, and discloses a dynamic kinetic AAA system that employs cyclic allylic chlorides as substrates. <strong>Chapter 3</strong> presents the study on expanding the disclosed copper-catalyzed dynamic kinetic AAA chemistry by using more stabilized cyclic allylic phosphate substrates. Further exploration of its possible mechanisms uses substituted substrates, deuterated and enantiopure substrates are also discussed. <strong>Chapter 4</strong> demonstrates the study of organozirconium reagents used in copper-catalyzed enantioselective desymmetrization reactions. Investigation of oxabicyclic alkenes and mesoallyl substrates is reported. <strong>Chapter 5</strong> gives supporting information of this thesis.

Some reactions of vinyl sulfimides and synthesis of novel inhibitors of dihydrofolate reductase

Rooke, Stuart January 1997 (has links)
No description available.

The synthesis and chirality of cyclopropane fatty acids

Coxon, Geoffrey David January 1999 (has links)
No description available.

Enantioselective synthetic approaches to natural products based on functionalised cis-bicyclo[3.3.0]octane synthons

Bennett, Lisa Ruth January 1995 (has links)
No description available.

Lithium amide-induced enantioselective rearrangements of 4- and 4,4-substituted cyclopentene oxides

Gibbs, Andrew Raymond January 1998 (has links)
No description available.

Epoxide chemistry

Polywka, R. January 1990 (has links)
No description available.

Asymmetric fluorous biphasic catalysis based on perfluoroalkyl-BINOLs. / CUHK electronic theses & dissertations collection

January 2000 (has links)
Tian Yuan. / "September 2000." / Thesis (Ph.D.)--Chinese University of Hong Kong, 2000. / Includes bibliographical references (p. 114-136). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Mode of access: World Wide Web. / Abstracts in English and Chinese.

De novo asymmetric syntheses of biologically important natural products phomopsolide D, phomopsolide E, milbemycin [beta]₃ and apicularen A /

Li, Miaosheng. January 1900 (has links)
Thesis (Ph. D.)--West Virginia University, 2006. / Title from document title page. Document formatted into pages; contains viii, 161, [213] p. : ill. Includes abstract. Includes bibliographical references (p. 154-161).

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