Unusual Regioselectivity in the Carbonylation of Substituted Benzenes via the C–H Activation Catalyzed by RhCl(CO)(PMe3)2

Abstract
Meta-substituted benzaldehydes were obtained as the major product in the carbonylation of mono-substituted benzenes via the C–H activation catalyzed by RhCl(CO)(PMe3)2 under irradiation.