Catalytic enantioselective direct Michael additions of ketones to alkylidene malonates
作者:Juan M Betancort、Kandasamy Sakthivel、Rajeswari Thayumanavan、Carlos F Barbas
DOI:10.1016/s0040-4039(01)00793-6
日期:2001.7
Enantioselective direct Michael additions of ketones using (S)-1-(2-pyrrolidinylmethyl)-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.
描述了使用(S)-1-(2-吡咯烷基甲基)-吡咯烷作为催化剂对酮的对映选择性直接迈克尔加成。通过在温和的反应条件下,亚烷基丙二酸酯与简单的未活化酮反应,可得到ee高达91%的迈克尔加合物。