Synthesis of α,α-difluorobenzoyl oxygen heterocycles via the radical reaction of 2-iodo-2,2-difluoroacetophenones with unsaturated acids or unsaturated alcohols

A convenient and facile method for the direct synthesis of α,α-difluorobenzoyl lactones or cyclic ethers via the radical cyclization reaction of 2-iodo-2,2-difluoroacetophenone with unsaturated acids or alcohols was reported.