Difluorocarbene-based cyanodifluoromethylation of alkenes induced by a dual-functional Cu-catalyst

Described herein is a Cu-catalyzed difluorocarbene-based cyanodifluoromethylation of alkenes. BrCF₂CO₂Et and NH₄HCO₃ serve as a carbon source and a nitrogen source of the nitrile group, respectively. The Cu-complex plays a dual role.