The direct sequential arylation reaction at the C3 and C1 positions of imidazo[1,5-a]pyridines with a variety of aryl iodides catalyzed by [Pd(phen)2](PF6)2 is described. The reaction of unsubstitu...
A direct palladium-catalyzedhighly regioselective C-3 arylation of imidazo[1,5-a]pyridine with aryl bromides has been developed. This reaction is quite general with respect to the aryl or hetaryl bromide.