Enantioselective Michael reaction of malonates and chalcones by phase-transfer catalysis using chiral quaternary ammonium salt
作者:Dae Young Kim、Sun Chul Huh、Sung Min Kim
DOI:10.1016/s0040-4039(01)01237-0
日期:2001.9
The catalytic enantioselective Michael reaction promoted by quaternary ammonium salt from cinchonidine as a phase-transfer catalyst is described. Treatment of malonate with chalcone derivatives under mild reaction conditions afforded the corresponding Michael adducts in good yields with good to moderate enantiomeric excesses.
描述了由辛可尼丁作为相转移催化剂的季铵盐促进的催化对映选择性迈克尔反应。在温和的反应条件下用查耳酮衍生物处理丙二酸酯,得到相应的迈克尔加合物,收率高,对映体过量至中度。