Pd-Catalyzed Intramolecular Oxidative C–H Amination: Synthesis of Carbazoles

A Pd-catalyzed oxidative C–H amination of N-Ts-2-arylanilines under ambient temperature using Oxone as an inexpensive, safe, and easy-to-handle oxidant has been developed. This process represents a green and practical method for the facile construction of carbazoles with a broad substrate scope and wide functional group tolerance.