An oxidative amidation of 2-methylpyridines/2-methylbenzimidazole with amines using copper acetate and elemental sulfur in DMSO to afford various N-(hetero)arylamides has been accomplished. Mechanistic studies reveal the intermediacy of N-(pyridin-2-ylmethyl)aniline and confirm the role of DMSO as the oxygen source.
A. Jaiswal, Preeti and K. N. Singh, Org. Biomol. Chem., 2022, 20, 6915 DOI: 10.1039/D2OB01106A
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