Access to Isoxazolidines through Visible-Light-Induced Difunctionalization of Alkenes

An access to isoxazolidines featuring visible-light induced aerobic difunctionalization of alkenes is reported. α-Amino radicals generated via oxidative decarboxylation of N-aryl glycines are added to alkenes and the resulting radical intermediates are trapped by superoxides. The peroxides undergo swift intramolecular amine oxidation to provide the valuable isoxazolidines. Alkenes with varied functionalization can be applied. The isoxazolidine ring can be readily opened via reduction by zinc in acetic acid to afford γ-lactams in high yield.