Synthesis of Chiral Esters via Asymmetric Wolff Rearrangement Reaction
作者:Jing Meng、Wei-Wei Ding、Zhi-Yong Han
DOI:10.1021/acs.orglett.9b03227
日期:2019.12.20
The first asymmetric Wolff rearrangement reaction that directly converts α-diazoketones into broadly useful chiral α,α-disubstituted carboxylic esters with high enantioselectivities (up to 97.5:2.5 er) is reported. The cascade reaction proceeds through the seamless combination of visible-light-induced formation of the ketene intermediate and asymmetric ketene esterification using a readily available