Copper‐Catalyzed Aerobic Oxidative Amination of Indole Derivatives via Single‐Electron Transfer

Abstract An efficient and clean approach for the oxidative amination of indole derivatives with phenothiazines is developed under copper‐catalyzed aerobic conditions. The reaction is carried out vi a the cross‐coupling of indole radical cation and phenothiazine radical in air. This approach offers a new perspective in the application of phenothiazine as a nitrogen group source for C−N bond formation reactions.