Highly Enantioselective Michael Reactions Catalyzed by a Chiral Quaternary Ammonium Salt. Illustration by Asymmetric Syntheses of (S)-Ornithine and Chiral 2-Cyclohexenones

The use of the chiral quaternary ammonium salts 1a and 1b makes possible enantioselective Michael reactions which have been applied to the asymmetric syntheses of (S)-ornithine (2) and the chiral 2-cyclohexenone 6.

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Bibliographic Details
Published in:Organic letters 2000-04, Vol.2 (8), p.1097-1100
Main Authors: Zhang, Fu-Yao, Corey, E. J
Format: Article
Language:English
Subjects:
Catalysis
Cyclohexanones - chemical synthesis
Cyclohexanones - chemistry
Molecular Structure
Ornithine - chemical synthesis
Ornithine - chemistry
Quaternary Ammonium Compounds - chemistry
Salts
Spectrum Analysis
Stereoisomerism
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Description
Summary:The use of the chiral quaternary ammonium salts 1a and 1b makes possible enantioselective Michael reactions which have been applied to the asymmetric syntheses of (S)-ornithine (2) and the chiral 2-cyclohexenone 6.
ISSN:1523-7060
1523-7052
DOI:10.1021/ol0056527