Preparation of chiral secondary boronic esters via copper-catalyzed enantioselective conjugate reduction of β-boronyl-β-alkyl α,β-unsaturated esters
作者:Jinyue Ding、Dennis G. Hall
DOI:10.1016/j.tet.2011.07.088
日期:2012.4
A new methodology involving the copper(I)-catalyzed enantioselective conjugate reduction of β-boronyl-β-alkyl enoates was developed. Various chiral secondary boronate derivatives can be accessed in excellent yields and good to high levels of enantioselectivity through this efficient copper-catalyzed process using polymethylhydrosiloxane (PMHS) as hydride source.
开发了一种新的方法,涉及铜(I)催化β-硼酰基-β-烷基烯酸酯的对映体选择性共轭还原。通过使用聚甲基氢硅氧烷(PMHS)作为氢化物源的这种有效的铜催化方法,可以以高收率和良好至高水平的对映选择性获得各种手性仲硼酸酯衍生物。