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Catalytic asymmetric Horner-Wadsworth-Emmons reaction under phase-transfer-catalyzed conditions

✍ Scribed by Shigeru Arai; Seiji Hamaguchi; Takayuki Shioiri

Publisher: Elsevier Science
Year: 1998
Tongue: French
Weight: 209 KB
Volume: 39
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(98)00442-0

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✦ Synopsis

The catalytic asymmetric Horuer-Wadsworth-Emmons rcaction promoted by quaternary ammonium salts derived from cinchonine as a phase-transfer catalyst is described. Treatment of the prochiral ketone 1 with phosphonates under mild reaction conditions afforded the corresponding desired products in moderate enantiomeric excess.

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