Direct asymmetric Michael addition of phthalide derivatives to chalcones
作者:Jie Luo、Chunhui Jiang、Haifei Wang、Li-Wen Xu、Yixin Lu
DOI:10.1016/j.tetlet.2013.07.108
日期:2013.9
The Michaeladdition of phthalides to chalcones employing a quinidine-derived thiourea catalyst Q-1 has been developed. The reported method led to the synthesis of 3,3-disubstituted phthalide derivatives in excellent yields, with excellent diastereo- and enantioselectivities.