Zn-Mediated Fragmentation of -Alkoxyphthalimides Enabling the Synthesis of -Difluoroalkenes.

Zn-mediated generation of alkoxyl radicals from -alkoxyphthalimides emerged as an efficient approach for forming diverse and valuable alkyl radicals through β-scission or a hydrogen atom transfer process. The alkyl radical species can be further trapped by α-trifluoromethyl alkenes to construct a series of -difluoroalkenes.