Cobalt(II)-Catalyzed Acyloxylation of C-H Bonds in Aromatic Amides with Carboxylic Acids.

The cobalt(II)-catalyzed acyloxylation of C-H bonds in aromatic amides containing an 8-aminoquinoline moiety as the directing group with carboxylic acids is reported. Various carboxylic acids including aromatic and aliphatic carboxylic acids are applicable to the reaction. The reaction displays a broad substrate scope and high functional group tolerance. The reaction is carried out under air.