Kinetic Resolution of 2,2-Disubstituted Dihydroquinolines through Chiral Phosphoric Acid-Catalyzed C6-Selective Asymmetric Halogenations
作者:Chaofan Zhu、Wei Liu、Fei Zhao、Yunrong Chen、Houchao Tao、Yu-Peng He、Xiaoyu Yang
DOI:10.1021/acs.orglett.1c00978
日期:2021.6.4
A novel kinetic resolution of 2,2-disubstituted dihydroquinolines was achieved by regioselective asymmetric halogenations enabled by chiral phosphoric acid catalysis. A series of dihydroquinolines bearing 2,2-disubstitutions were well-tolerated in these reactions, generating both the recovered dihydroquinolines and C-6-brominated products with high enantioselectivities, with s-factors up to 149. In