Regioselective Oxidative C-H Phosphonation of Imidazo[1,2-<i>a</i>]pyridines and Related Heteroarenes Mediated by Manganese(III) Acetate
作者:Mahipal Yadav、Saidulu Dara、Varma Saikam、Mukesh Kumar、Sravan Kumar Aithagani、Satya Paul、Ram A. Vishwakarma、Parvinder Pal Singh
DOI:10.1002/ejoc.201500984
日期:2015.9
Herein, we report a MnIII-mediated regioselective method for the direct C–Hphosphonation of imidazo[1,2-a]pyridines by using dialkyl phosphites. 3-Phosphonated imidazo[1,2-a]pyridines are synthesized in good to excellent yields under the optimized reaction conditions. The present method is also applicable to the functionalization of relatedheteroarenes, and unlike previously reported methods, the