A novel method of transamidation of carboxamides with amines using catalytic amounts of H2SO4–SiO2 under solvent-free conditions has been developed. The scope of the methodology has been demonstrated with primary and secondary amines.
A procedure for the synthesis of N-heteroaryl amides directly from oxidative amidation of aldehydes catalyzed by heteropolyanion-based ionic liquids has been reported. The proposed
An environmentally benign protocol for the synthesis of