Chiral thiourea compounds and process for enantioselective reduction of ketones
申请人:Li Derun
公开号:US20090253919A1
公开(公告)日:2009-10-08
Chiral thioureas are effective catalysts for the borane reduction of prochiral ketones to optically active alcohols. A prochiral ketone may be reduced to an optically active alcohol in the presence of a substantially sub-stoichiometric amount of chiral thiourea. The asymmetric thiourea compound of the present invention may be produced according to a production method described herein.