Visible-Light-Mediated Ir(III)-Catalyzed Concomitant C3 Oxidation and C2 Amination of Indoles.

A visible-light-mediated concomitant C3 oxidation and C2 amination of indoles has been achieved at room temperature using an Ir (III) photocatalyst. This reaction proceeds without an isatin intermediate via the attack of a singlet oxygen at the C3 position followed by C2 amination leading to difunctionalization of indoles.