Rhodium‐Catalyzed Oxidative ortho‐Acylation of Benzamides with Aldehydes: Direct Functionalization of the sp2 C—H Bond.

A rhodium-catalyzed oxidative acylation of benzamides with aryl aldehydes via direct sp2 C–H bond cleavage is described. In the presence of [Cp*RhCl2]2, AgSbF6, and silver carbonate as an oxidant, N,N-diethyl benzamides can be effectively carbonylated to yield ortho-acyl benzamides.