Palladium-catalyzed carbonylative coupling reactions using triorganoindium compounds.

A novel palladium-catalyzed carbonylative cross-coupling reaction that employs triorganoindium compounds is described. The reaction proceeds under a carbon monoxide atmosphere with alkyl-, alkynyl-, and arylindium reagents to give good yields of unsymmetrical ketones with high atom economy. All three organic groups attached to the metal are efficiently transferred in this carbonylative coupling reaction.