N,N-Dimethylaminobenzoates enable highly enantioselective Sharpless dihydroxylations of 1,1-disubstituted alkenes
作者:Yaohong Zhao、Xiangyou Xing、Shaolong Zhang、David Zhigang Wang
DOI:10.1039/c4ob00621f
日期:——
beneficial catalyst–substrate π–π stacking electronic interactions in the classical Sharpless asymmetric dihydroxylations (SAD) leads to the identification of highly polarizable allylic N,N-dimethylaminobenzoate as a remarkably efficient auxiliary for inducing high levels of enantioselectivities (up to 99% ee) in the traditionally challenging substrate class of 1,1-disubstituted aliphatic alkenes.
设计方案旨在探索经典Sharpless不对称二羟基化(SAD)中有益的催化剂-基底π-π堆积电子相互作用,从而鉴定出高度可极化的烯丙基N,N-二甲基氨基苯甲酸酯作为诱导高水平对映选择性的非常有效的助剂(在传统上具有挑战性的1,1-二取代脂族烯烃底物类别中,ee最高可达99%ee)。