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.