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Approaches to Asymmetric Synthesis. The Diastereoselective Alkylations of Chiral Propionamide Enolates

Citation

Takacs, James Michael (1981) Approaches to Asymmetric Synthesis. The Diastereoselective Alkylations of Chiral Propionamide Enolates. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/f2kf-9406. https://resolver.caltech.edu/CaltechTHESIS:05092018-115015856

Abstract

Enantioselective propionate alkylation, as a method to control acyclic methyl~bearing stereocenters, is achieved via the diastereoselective alkylation of chiral propionamide enolates. The factors which control stereoselective enolization, diastereotopic differentiation of the enolate system, and selective cleavage of the chiral auxiliary are discussed. The application to the preparation of simple chiral carboxylic acids proceeds with the highest optical yields yet reported.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Chemistry
Degree Grantor:California Institute of Technology
Division:Chemistry and Chemical Engineering
Major Option:Chemistry
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Dervan, Peter B.
Thesis Committee:
  • Dervan, Peter B. (chair)
  • Evans, David A.
  • Ireland, Robert E.
  • Richards, John H.
Defense Date:19 January 1981
Record Number:CaltechTHESIS:05092018-115015856
Persistent URL:https://resolver.caltech.edu/CaltechTHESIS:05092018-115015856
DOI:10.7907/f2kf-9406
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10869
Collection:CaltechTHESIS
Deposited By: Mel Ray
Deposited On:09 May 2018 21:37
Last Modified:19 Apr 2021 22:30

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