Palladium-Catalyzed Regioselective Intramolecular Coupling of <i>o</i>‑Carborane with Aromatics via Direct Cage B–H Activation

Palladium-catalyzed intramolecular coupling of o-carborane with aromatics via direct cage B–H bond activation has been achieved, leading to the synthesis of a series of o-carborane-functionalized aromatics in high yields with excellent regioselectivity. In addition, the site selectivity can also be tuned by the substituents on cage carbon atom.