Synthesis of new imidazo[2,1-b][1,3]thiazole derivatives from 2-amino-4-(2,2-dichlorovinyl)-1,3-thiazole and N-(2,2-dichloro-2-phenylethylidene)arenesulfonamides
作者:V. Yu. Serykh、G. G. Levkovskaya、A. V. Popov、V. I. Potkin、S. K. Petkevich、A. V. Vashchenko、V. I. Smirnov、I. B. Rozentsveig
DOI:10.1134/s1070428016100171
日期:2016.10
N-[2,2-di(or 2,2,2-tri)chloro-1-(1,3-thiazol-2-ylamino)ethyl]arenesulfonamides in good yields. Intramolecular heterocyclization of the latter afforded N-[3-(2,2-dichloroethyl)-6-phenylimidazo[2,1-b][1,3]thiazol-5-yl]arenesulfonamides.
2-氨基-4-(2,2-二氯乙烯基)-1,3-噻唑与高度亲电的N-(2,2-二氯-2-苯基亚乙基)-和N-(2,2,2-三氯亚乙基)芳烃磺酰胺反应通过环外氨基,得到亲核加成到甲亚胺键的产品,ñ - [2,2-二(或2,2,2-三)氯-1-(1,3-噻唑-2-基氨基)乙基]芳烃磺酰胺,收率高。后者的分子内杂环化得到N- [3-(2,2-二氯乙基)-6-苯基咪唑并[2,1- b ] [1,3]噻唑-5-基]芳烃磺酰胺。