Asymmetric Darzens condensation on chiral η6Cr(CO)3 complexed benzaldehydes
作者:Clara Baldoli、Paola Del Buttero、Stefano Maiorana
DOI:10.1016/s0040-4020(01)90079-1
日期:1990.1
Enantioselective Darzenscondensation has been achieved from optically active ortho substituted benzaldehyde(tricarbonyl)chromium complexes. The enantiomeric excesses were very high with 2-methoxy and 2-chloro benzaldehyde(tricarbonyl)chromium and the corresponding epoxides obtained were nearly optically pure.