Regioselective C2 Oxidative Olefination of Indoles and Pyrroles Through Cationic Rhodium(III)-Catalyzed C—H Bond Activation.

Reaction conditions are optimized for the efficient Rh-catalyzed oxidative olefination of 2-unsubstituted indoles using N,N-dimethylcarbamoyl as readily removable N-protecting and directing group.