Cyclization of 4-substituted 1-amidinothiosemi-carbazides to 1,2,4-triazole and 1,3,4-thiadiazole derivatives
作者:F. Kurzer、J. Canelle
DOI:10.1016/s0040-4020(01)99234-8
日期:1963.1
aryl)amino-1,3,4-thiadiazoles are synthesized by cyclization of 4-substituted 1-amidinothiosemi- carbazides in alkaline or acid media, respectively. Amongst the intermediates required in these syntheses, the three isomeric (trifluoromethyl)Phenyl-thioureas and described.
通过4-取代基的环化合成许多4-取代的3-氨基-5-巯基-1,2,4-三唑和2-氨基-5-烷基(或芳基)氨基-1,3,4-噻二唑。 1-ami基硫代氨基脲分别在碱性或酸性介质中。在这些合成所需的中间体中,描述了三种异构体(三氟甲基)苯基-硫脲。