Photoinduced addition and addition-elimination reactions of perfluoroalkyl iodides to electron-deficient olefins

Photoinduced radical perfluoroalkylation of various simple electron-deficient olefins was achieved in the presence of an aqueous Na2S2O3 solution. The reactions proceeded smoothly to give addition or addition-elimination products. The ability of the products to be used as radical precursors or Michael acceptors was also demonstrated.