Au(I)/(<i>R</i>)-BINOL–Ti(IV) Concerted Catalyzed Asymmetric Cascade Cycloaddition Reaction of Arylalkynols
作者:Hongkai Wang、Tianlong Zeng、Weixing Chang、Lingyan Liu、Jing Li
DOI:10.1021/acs.orglett.1c00976
日期:2021.5.7
An efficient catalytic asymmetric cascade cycloadditionreaction of arylalkynols with dioxopyrrolidines was developed. This reaction was achieved using Au(I) and (R)-BINOL–Ti(IV) bimetallic catalysts and exclusively delivered a series of chiral oxo-bridged bicyclic benzooxacine compounds in up to 86% yield with 96% ee as well as >33:1 dr. Meanwhile, three new σ bonds and three new stereogenic centers