Visible-light-induced radical isocyanide insertion protocol for the synthesis of difluoromethylated spiro[indole-3,3′-quinoline] derivatives
Jingjing Zhang, Wentao Xu, Yi Qu, Yuxiu Liu, Yongqiang Li, Hongjian Song, Qingmin Wang
Abstract
Herein, we report the first protocol for visible-light-induced radical isocyanide insertion reactions between 3-(2-isocyanobenzyl)-indoles and bromodifluoroacetates or bromodifluoroacetamides. The protocol, which has good functional group tolerance and a broad substrate scope, constitutes an efficient and general route to difluoromethylated spiro[indole-3,3'-quinoline] derivatives.
Topics & Concepts
IsocyanideIndole testQuinolineChemistryPhotochemistryCombinatorial chemistryMedicinal chemistryOrganic chemistryFluorine in Organic ChemistryRadical Photochemical ReactionsCatalytic C–H Functionalization Methods