asymmetric catalyst;
asymmetric synthesis;
Michael reaction;
D O I:
10.1016/S0040-4039(01)00793-6
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Enantioselective direct Michael additions of ketones using (S)-1-(2-pyrroldinylmethyl)-pyrrolidine as a catalyst are described. Michael adducts with up to 91% e.e. were obtained by the reaction of alkylidene malonates with simple unactivated ketones under mild reaction conditions. (C) 2001 Elsevier Science Ltd. All rights reserved.