作者:Lorenzo Caruana、Florian Kniep、Tore Kiilerich Johansen、Pernille H. Poulsen、Karl Anker Jørgensen
DOI:10.1021/ja510475n
日期:2014.11.12
The organocatalytic asymmetric α-alkylation of aldehydes by 1,6-conjugated addition of enamines to p-quinone methides is described. Employing a newly developed class of chiral secondary amine catalysts, α-diarylmethine-substituted aldehydes with two contiguous stereocenters have been synthesized in a simple manner with good diastereocontrol and excellent enantioselectivity.
描述了通过烯胺与对醌甲基化物的 1,6-共轭加成进行醛的有机催化不对称 α-烷基化。使用新开发的一类手性仲胺催化剂,以简单的方式合成了具有两个连续立体中心的 α-二芳基次甲基取代的醛,具有良好的非对映控制和优异的对映选择性。