Catalytic asymmetric Darzens condensation under phase-transfer-catalyzed conditions
作者:Shigeru Arai、Takayuki Shioiri
DOI:10.1016/s0040-4039(98)00081-1
日期:1998.4
The catalytic asymmetric Darzenscondensation promoted by the quaternary ammonium salt (PTC A) derived from cinchonine as a phase-transfer catalyst is described. Treatment of phenacyl chloride with various aldehydes under mild reaction conditions afforded the corresponding desired product in good yield with good to moderate enantiomeric excess.