An efficient sodium bicarbonate promoted aerobicoxidation reaction to prepare N-monosubstituted α-ketoamides in the presence of n-tetrabutylammonium hydrogensulfate (TBAHS) was described. This reaction provides a very simple and convenient synthetic route to N-monosubstituted α-ketoamides from easily available aryl- or heteroarylacetamides in good to high yields without using toxic reagents and