One-Pot Synthesis of<i>N</i>-(Imidazo[1,2-<i>a</i>]pyridin-3-yl)-Substituted Sulfonamides Using Catalytic Zinc Chloride
作者:Chuanming Yu、Xu Chen、Ran Wu、Guanghui Yang、Jiaoyong Shi、Lingling Pan
DOI:10.1002/ejoc.201301612
日期:2014.4
A one-pot two-step synthesis of N-(imidazo[1,2-a]pyridin-3-yl)sulfonamides from easily available arylglyoxal hydrates, 2-aminopyridines, and sulfonamides has been developed. The procedure, usingzincchloride as catalyst, is simple and inexpensive. The desired products were obtained in moderate to good yields under the optimized reaction conditions.