TBAI/TBHP Catalyzed Synthesis of 2,4,6-Trisubstituted Pyridines from Oxime Acetates Using Benzylamine as an Effective ArCO Surrogate under Transition Metal-Free Conditions

An efficient TBHP/TBAI mediated strategy has been developed for the synthesis of 2,4,6-trisubstitued pyridines from ketoxime acetates and benzylamines under metal-free conditions for the first time. In this protocol benzylamine acts as an effective ArCO surrogate. This methodology features use of inexpensive catalysts, avert of additional ligands and additives and high functional group tolerance. Moreover, 5-Lipoxygenase enzyme inhibitory activities were performed for all synthesised compounds. Among all 2,4,6-trisubstituted pyridines 3fg, 3fa and 3eg showed good activity. An efficient TBHP/TBAI mediated strategy has been developed for the synthesis of 2,4,6-trisubstitued pyridines. In this protocol benzylamine acts as an effective ArCO surrogate. This methodology features use of inexpensive catalysts, avert of additional ligands and additives with high functional group tolerance. Moreover, 5-Lipoxygenase enzyme inhibitory activities were performed for all synthesised compounds. Among all 3fg, 3fa and 3eg showed good activity. image