Free-Radical Carbo-alkenylation of Enamides and Ene-carbamates

The addition of xanthates and vinyldisulfones across the double bond of enamides and ene-carbamates provides access to the corresponding three.. component adducts in good to excellent yields with a high level of diastereocontrol in cyclic systems. This strategy illustrates a complementary reactivity for these versatile olefins and extends their scope of application.