Nickel‐Catalyzed Cross‐Coupling Reactions of o ‐Carboranyl with Aryl Iodides: Facile Synthesis of 1‐Aryl‐ o ‐Carboranes and 1,2‐Diaryl‐ o ‐Carboranes

A nickel‐catalyzed arylation at the carbon center of o ‐carborane cages has been developed, thus leading to the preparation of a series of 1‐aryl‐ o ‐carboranes and 1,2‐diaryl‐ o ‐carboranes in high yields upon isolation. This method represents the first example of transition metal catalyzed C,C′‐diarylation by cross‐coupling reactions of o ‐carboranyl with aryl iodides.