Iridium-Catalyzed Selective B(4)-H Amination of o -Carboranes with Anthranils.

We report here a catalytic selective cage B4-H amination of o -carboranes employing an Ir(III) complex as a catalyst and anthranils as aminating agents, leading to a large class of B4-aminated o -carboranes with very high yields and a broad substrate scope under mild conditions without any oxidants. In these reactions, the carboxyl group serves as a traceless directing unit to determine the site selectivity and degree of substitution.