Regiospecific Synthesis of<i>N</i>-Sulfonyl Derivatives of 3,5-Diamino-1<i>H</i>-1, 2,4-triazole and 2,5-Diamino-1,3,4-thiadiazole
作者:Shailaja P. Maybhate、Pattuparambil P. Rajamohanan、Srinivasachari Rajappa
DOI:10.1055/s-1991-26426
日期:——
Condensation of the S,S-dimethyl N-(alkylsulfonyl)carbondithioimidates 1 with aminoguanidine bicarbonate and hydrazinecarbothioamide leads to the regiospecific synthesis of N-sulfonyl derivatives of 3,5-diamino-1H-1,2,4-triazole 2 and 2,5-diamino-1,3,4-thiadiazole 3, respectively.
将 S,S-二甲基 N-(烷基磺酰基)碳二硫亚胺酸盐 1 与氨基胍碳酸氢盐和硫代肼酰胺缩合,可分别得到 3,5-二氨基-1H-1,2,4-三唑 2 和 2,5-二氨基-1,3,4-噻二唑 3 的 N-磺酰基衍生物的特异性合成。