The Direct C–H Difluoromethylation of Heteroarenes Based on the Photolysis of Hypervalent Iodine(III) Reagents That Contain Difluoroacetoxy Ligands

In this letter, an efficient method for the photolytic generation of difluoromethyl radicals from [bis­(difluoro­acetoxy)­iodo]­benzene reagents is described. The present approach enables the introduction of difluoromethyl groups into various heteroarenes under mild conditions in the absence of any additional reagents or catalysts.