Highly Enantioselective Alkynylation of Trifluoropyruvate with Alkynylsilanes Catalyzed by the BINAP−Pd Complex: Access to α-Trifluoromethyl-Substituted Tertiary Alcohols
作者:Kohsuke Aikawa、Yu̅ta Hioki、Koichi Mikami
DOI:10.1021/ol102541s
日期:2010.12.17
A highlyenantioselective alkynylation catalyzed by the dicationic (S)-BINAP−Pd complex with a variety of alkynylsilanes and trifluoropyruvate is described. The catalytic reaction is applicable to highlyenantioselective addition of polyyne to trifluoropyruvate to construct α-trifluoromethyl-substituted tertiaryalcohols as enantiomerically enriched forms. The alkynyl products can be converted into