Ligand-accelerated enantioselective methylene C(sp
<sup>3</sup>
)–H bond activation
作者:Gang Chen、Wei Gong、Zhe Zhuang、Michal S. Andrä、Yan-Qiao Chen、Xin Hong、Yun-Fang Yang、Tao Liu、K. N. Houk、Jin-Quan Yu
DOI:10.1126/science.aaf4434
日期:2016.9.2
Effective differentiation of prochiral carbon–hydrogen (C–H) bonds on a single methylene carbon via asymmetric metal insertion remains a challenge. Here, we report the discovery of chiral acetyl-protected aminoethyl quinoline ligands that enable asymmetric palladium insertion into prochiral C–H bonds on a single methylene carbon center. We apply these palladium complexes to catalytic enantioselective