A number of 5-(p-substituted)phenyl-1,2,3,4-thiatriazoles have been synthesized by the diazotization of p-substituted thiobenzhydrazides or by the reaction of sodium thiobenzoyl-thioglycollates with sodium azide. The thermal decomposition of these thiatriazoles yields nitriles, nitrogen, and sulphur. 5-Alkyl-1,2,3,4-thiatriazoles are very unstable and readily decompose to nitriles. Infrared and ultraviolet absorption spectra of 5-(p-substituted)phenyl-1,2,3,4-thiatriazoles have been studied. Infrared spectra of several thiohydrazides have also been studied and there appears to be no thiol–thione tautomerism in these derivatives. The thiatriazole ring is found to be electron withdrawing.
一些5-(对取代)苯基-1,2,3,4-噻二唑已通过对对取代硫代苯甲酰肼进行重氮化或通过硫代苯甲酰巯基乙酸钠与偏硫酸钠的反应合成。这些噻二唑的热分解产生腈、氮和硫。5-烷基-1,2,3,4-噻二唑非常不稳定,并容易分解为腈。对5-(对取代)苯基-1,2,3,4-噻二唑的红外和紫外吸收光谱进行了研究。还研究了几种硫代肼的红外光谱,这些衍生物中似乎没有巯基-硫酮互变异构。噻二唑环被发现是电子吸引的。