Synthesis of a series of novel chiral Lewis base catalysts and their application in promoting asymmetric hydrosilylation of β-enamino esters
作者:Xing Chen、Xiao-Yan Hu、Chang Shu、Yong-Hong Zhang、Yong-Sheng Zheng、Yan Jiang、Wei-Cheng Yuan、Bo Liu、Xiao-Mei Zhang
DOI:10.1039/c3ob40430g
日期:——
novel chiral Lewis base catalysts were synthesized from L-serine and applied in the hydrosilylation of β-enamino esters, in which the optimal one promoted the reactions to afford a wide variety of β-amino esters in good yields with good enantioselectivities. It is noteworthy that several cyclic substrates were hydrosilylated under the optimal conditions to give the cyclic β-amino esters with high yields
合成了一系列新颖的手性路易斯碱催化剂 大号丝氨酸并被用于β-烯氨基酯的氢化硅烷化中,其中最佳的一种促进了反应,以良好的产率和良好的对映选择性提供了多种β-氨基酯。值得注意的是,几种环状底物在最佳条件下被氢化硅烷化,从而得到具有高收率,良好的非对映选择性以及良好的ee值的环状β-氨基酯。