Visible-light-mediated direct perfluoroalkylation and trifluoromethylation of free anilines
作者:Chun-Yang He、Ji-Wei Gu、Xingang Zhang
DOI:10.1016/j.tetlet.2017.09.010
日期:2017.10
A mild, operationally simple method for direct perfluoroalkylation and trifluoromethylation of anilines through visible-light-mediated photoredox catalysis from broadly available perfluoroalkyl iodides and free anilines is described. The method provides a facile route for application in drug discovery and development.
A new transition-metal-free direct C−H trifluoromethylation reaction of (hetero)arenes with Togni’s reagent was developed. This transformation proceeded smoothly under mild conditions and exhibited good tolerance of many synthetically relevant functional groups. It provided an alternative approach for the synthesis of trifluoromethylated (hetero)arenes.
nickel-catalyzed C–Htrifluoromethylation for the synthesis of trifluoromethylated freeanilines using Togni’s reagent has been developed. This approach exhibits a good functional group tolerance, good regioselectivity, and chemoselectivity under mild conditions. The newly developed economical one-step method is a better alternative to synthesize trifluoromethylated freeanilines.