2-Alkoxy-5-amino- and -5-arenesulphonamido-1,3,4-thiadiazoles and related compounds
作者:R. Clarkson、J. K. Landquist
DOI:10.1039/j39670002700
日期:——
2-Alkoxy-5-amino-1,3,4-thiadiazoles are obtained by the action of cyanogen halides on alkoxythiocarbonylhydrazines, or by reaction of thiosemicarbazides with dialkoxymethylenimines. The latter process may also give 5-amino- or 5-alkoxy-1,2,4-triazole-3-thiols. Acylation of the aminothiadiazoles with arenesulphonyl chlorides gives 2-alkoxy-5-arenesulphonamido-1,3,4-thiadiazoles or 2-alkoxy-4-arenes
2-烷氧基-5-
氨基-1,3,4-
噻二唑是通过卤化
氰对烷氧基
硫代羰基
肼的作用或
硫代
氨基
脲与二烷氧基甲基
亚胺的反应制得的。后一种方法也可以得到5-
氨基-或5-烷氧基-
1,2,4-三唑-3-
硫醇。将
氨基
噻二唑与芳
磺酰氯酰化,得到2-烷氧基-5-
芳烃磺酰胺基-1,3,4-
噻二唑或2-烷氧基-4-
芳烃磺酰基-5-
芳烃磺酰
氨基-4,5-二氢-1,3,4-
噻二唑。