Palladium-Catalyzed Decarboxylative Acylation of N-Nitrosoanilines with α-Oxocarboxylic Acids

A palladium-catalyzed oxidative C-H bond decarboxylative acylation of N-nitrosoanilines using α-oxocarboxylic acid as the acyl source is described. The catalyst Pd(OAc)2 and oxidant (NH4)2S2O8 enabled ortho-acylation of N-nitrosoanilines at room temperature, affording an array of N-nitroso-2-aminobenzophenones in moderate to excellent yields.