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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.
31

Synthesis and use of sulfur derivatives from L proline as catalytic agents in 1,2 and 1,4 addition reactions

Cotes Oyaga, Sandra January 2002 (has links)
No description available.
32

Stereoselective Cope-Type Hydroamination of Allylic Amines Using Simple Aldehydes as Catalysts

Hesp, Colin R. 11 June 2014 (has links)
Stereoselective hydroaminations of unactivated alkenes are rare as this represents a very challenging synthetic transformation. The most efficient examples occur in biased intramolecular systems and highly enantioselective intermolecular examples are rare, which is consistent with the forcing conditions required to catalyze the reactions. This limited reactivity also accounts for the lack of highly diastereoselective hydroamination variants. Recently our group has shown that intermolecular Cope-Type hydroamination of unactivated alkenes can be achieved using simple aldehydes as catalysts. The aldehyde promotes pre-association of the two reaction partners, inducing temporary intramolecularity resulting in a remarkably facile hydroamination event. This thesis will present the development of two reactions: intermolecular enantioselective Cope-type hydroamination and intermolecular diastereoselective Cope-type hydroamination of allylic amines.
33

Approaches to the asymmetric synthesis of 2-arylpropanoic acids / by Josephine Louise Newton.

Newton, Josephine Louise January 1995 (has links)
Bibliography : leaves 200-206. / iv, 206 leaves ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Covers the asymmetric synthesis of 2-arylpropanoic acids including ketoprofen, ibuprofen, ximoprofen. / Thesis (Ph.D.)--University of Adelaide, Dept. of Chemistry, 1995
34

Synthesis and reactions of a non-racemic, bicyclic chiral auxiliary / by Jeffrey William Holman.

Holman, Jeffrey William January 1992 (has links)
Bibliography: leaves 213-218. / v, 218 leaves ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Organic Chemistry, 1993
35

The asymmetric synthesis of polyfunctional pyrrolidine alkaloids and their analogues

Lindsay, Karl B. January 2003 (has links)
Thesis (Ph.D.)--University of Wollongong, 2003. / Typescript. Includes bibliographical references: leaf 214-222.
36

Quality provision in duopoly /

Argenton, Cédric, January 2006 (has links)
Diss. Stockholm : Handelshögskolan, 2006.
37

Studies on the optimization of catalytic asymmetric aziridination reaction tactics and mechanism /

Lu, Zhenjie. January 2008 (has links)
Thesis (Ph. D.)--Michigan State University. Dept. of Chemistry, 2008. / Title from PDF t.p. (viewed on Mar. 30, 2009) Includes bibliographical references (p. 375-386). Also issued in print.
38

The asymmetric synthesis of polyhydroxylated pyrrolizidine alkaloids

Tang, Minyan. January 2004 (has links)
Thesis (Ph.D.)--University of Wollongong, 2004. / Typescript. Includes bibliographical references: leaf 236-249.
39

De novo asymmetric synthesis of digitoxin based carbohydrate libraries

Xin, Wenjun. January 1900 (has links)
Thesis (M.S.)--West Virginia University, 2007. / Title from document title page. Document formatted into pages; contains x, 67 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 37-38).
40

Frigate defense effectiveness in asymmetrical green water engagements

Abel, Heiko. January 2009 (has links) (PDF)
Thesis (M.S. in Modeling, Virtual Environments and Simulation (MOVES))--Naval Postgraduate School, September 2009. / Thesis Advisor(s): Sanchez, Paul J. ; Second Reader: Kline, Jeffrey E. "September 2009." Author(s) subject terms: Agent Based Simulation, Asymmetric Warfare, Data Farming, Design of Experiments, Evolving Design, MANA, Modeling and Simulation, Naval Swarm Defense, Robust Design, Regression Analysis, Simulation Experiments and Efficient Design Center, Taguchi Method Description based on title screen as viewed on November 03, 2009. DTIC Descriptor (s): Frigates, Theater Level Operations, Defense Systems, Experimental Design, Confined Environments, Asymmetry, Statistical Analysis, Sea Water, Small Ships, Threats, Survivability, Weapons, Theses DTIC Identifier (s): SSTR (Stability Security Transition and Reconstruction), Asymmetric Warfare, Mana Includes bibliographical references (p. 125-132). Also available in print.

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