Flexible, Phase-Transfer Catalyzed Approaches to 4‑Substituted Prolines
A range of 4-substituted prolines can be rapidly synthesized from a protected glycine Schiff base in only four steps and in 27–55% overall yield. Phase transfer catalysis allows direct access to both enantiomeric series, and the relative stereochemistry at the 4-position is readily controlled (>1...
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Published in | Organic letters Vol. 16; no. 18; pp. 4778 - 4781 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
WASHINGTON
American Chemical Society
19.09.2014
Amer Chemical Soc |
Subjects | |
Online Access | Get full text |
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Summary: | A range of 4-substituted prolines can be rapidly synthesized from a protected glycine Schiff base in only four steps and in 27–55% overall yield. Phase transfer catalysis allows direct access to both enantiomeric series, and the relative stereochemistry at the 4-position is readily controlled (>10:1 dr) through the choice of hydrogenation conditions. |
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Bibliography: | researchfish ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1523-7060 1523-7052 |
DOI: | 10.1021/ol502239g |