A novel process for producing a 1-H-tetrazole-5-thiol of the formula ##STR1## in which R.sup.1 is hydrogen; lower alkyl; lower alkyl substituted with a carboxylic acid, a carboxylic acid lower alkyl ester, or an hydroxy group; phenyl or phenyl substituted with a halogen, a lower alkyl group, or a lower alkoxy group; benzyl or benzyl substituted with a halogen, a lower alkyl group, or 1-3 alkoxy groups of 1-3 carbon atoms; or trichloroethyl, which process comprises: (a) reacting a sulfinyl or sulfonyl cyanide of the formula: RS(O).sub.n CN in which n is 1 or 2 and R is alkyl; phenyl or phenyl substituted with a halogen, a lower alkyl group, or a lower alkoxy group; benzyl or benzyl substituted on the phenyl ring with a halogen, a lower alkyl group, or a lower alkoxy group; or an alicyclic group, with an azide of the formula R.sup.1 N.sub.3, in which R.sup.1 is as defined above, to form a 5-sulfinyl or sulfonyl-1-H-tetrazole of the formula: ##STR2## in which n is 1 or 2, and R and R.sup.1 are as defined above, and (b) reacting said 5-sulfinyl or sulfonyl-1-H-tetrazole with an alkali metal sulfide or ammonium sulfide.
一种生产式为##STR1##的1-H-
四唑-5-
硫醇的新工艺,其中R.sup.1为氢;低碳基;低碳基上取代有
羧酸、
羧酸低碳基酯或羟基;苯基或苯基上取代有卤素、低碳基或低碳基氧基;苄基或苄基上取代有卤素、低碳基或1-3个碳原子的1-3个烷氧基;或三
氯乙基。该工艺包括:(a)将式为RS(O).sub.nCN的磺酰基或亚磺酰基
氰化物与式为R.sup.1N.sub.3的
叠氮化物反应,其中n为1或2,R为烷基;苯基或苯基上取代有卤素、低碳基或低碳基氧基;苄基或苄基在苯基环上取代有卤素、低碳基或低碳基氧基;或脂环族基,以形成式为##STR2##的5-磺酰基或亚磺酰基-1-H-
四唑,其中n为1或2,R和R.sup.1如上所定义,以及(b)将所述5-磺酰基或亚磺酰基-1-H-
四唑与碱
金属
硫化物或
铵硫化物反应。