Water mediated deprotective intramolecular hydroamination of N-propargylaminopyridines: synthesis of imidazo[1,2-a]pyridines
摘要:
Metal-free synthesis of substituted imidazole [1,2-alpha]dpyridines from deprotective N-(prop-2-yn-1-yl)pyridin-2-amines in water is elucidated. Electron releasing substituents on pyridine ring provided pure products in quantitative yields without separation by column chromatography. (C) 2013 Elsevier Ltd. All rights reserved.