作者:Igor B. Rozentsveig、Valery Y. Serykh、Gulnur N. Chernysheva、Kirill A. Chernyshev、Evgeniy V. Kondrashov、Evgeny V. Tretyakov、Galina V. Romanenko
DOI:10.1002/ejoc.201201006
日期:2013.1
2-dichloro-2-phenyl-1-(heterylamino)ethyl]sulfonamides, in good yields. The latter are easily cyclized to (imidazo[1,2-a]pyridin-3-yl)sulfonamides and (imidazo[2,1-b]thiazol-5-yl)sulfonamides in the presence of alkali, whereas the expected isomeric (imidazo[1,2-a]pyridin-2-yl)sulfonamides and (imidazo[2,1-b]thiazol-6-yl)sulfonamides are not formed. A one-pot two-stage method for the synthesis of target heterocyclic