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, using zinc chloride as catalyst, is simple and inexpensive. The desired products were obtained in moderate to good yields under the optimized reaction conditions.
已经开发出从容易获得的芳基乙二醛水合物、2-氨基吡啶和磺酰胺中一锅两步合成 N-(咪唑并 [1,2-a] 吡啶-3-基) 磺酰胺。该方法以氯化锌为催化剂,简单且成本低廉。在优化的反应条件下,以中等至良好的收率获得了所需的产物。