Copper-Catalyzed Arylsulfonylation and Cyclizative Carbonation of <i>N</i>-(Arylsulfonyl)acrylamides Involving Desulfonative Arrangement toward Sulfonated Oxindoles
作者:Hepan Wang、Song Sun、Jiang Cheng
DOI:10.1021/acs.orglett.7b02827
日期:2017.11.3
N-(arylsulfonyl)acrylamides, DABSO, and aryldiazoniumtetrafluoroborates. This transformation is triggered by the formation of arylsulfonyl radicals in situ from the reaction of aryldiazoniumtetrafluoroborates and DABSO. Afterward, the sequential radical addition, radical cyclization, and desulfonylative 1,4-aryl migration take place to provide the final product by the formation of four new bonds in one pot. This