Diversity-Oriented Synthesis of Fluoromethylated Arenes via Palladium-Catalyzed C–H Fluoromethylation of Aryl Iodides

Herein we report the first versatile and expeditious method for the site-selective C–H fluoromethylation of aryl iodides via Pd/norbornene cooperative catalysis, which could work as a robust toolbox for the diversity-oriented synthesis (DOS) of fluoromethylated arenes. This methodology features the use of the low-cost industrial raw material CH2IF as the fluoromethyl source, an excellent functional group tolerance, and a broad ipso termination scope and can be expanded to the late-stage modification of biorelevant molecules.