Aromatic iodonium/sulfonium rearrangement using difluoroenol silyl ethers

Difluoroenol silyl ethers are a unique class of enol that widely used as powerful difluoroalkylating reagent to incorporate difluoromethylene groups into organic molecules. In this context, we revealed fluorine effect the difluoroenol exhibit oxygen nucleophilicity in lieu traditional α-carbon toward aromatic iodonium/sulfonium species, thus allowing us develop difluoroalkylative [3,3]-rearrangement aryl iodanes and sulfoxides dearomatization sulfoxides. article, summarize these works illustrate logic our design.