申请人:Ube Industries, Ltd.
公开号:US04675412A1
公开(公告)日:1987-06-23
There is disclosed a process for preparing 5-mercapto-1,2,3-thiadiazole salts comprising reacting a hydrazone compound represented by the formula: X.sub.3 C--CH.dbd.N--NH--SO.sub.2 Ar wherein X represents a halogen atom and Ar represents an aryl group, with a polysulfide compound represented by the formula: M.sub.2 S.sub.x wherein M represents an alkali metal atom or an NH.sub.4 group and x is an integer of 2 to 6. The present invention provides the 5-mercapto-1,2,3-thiadiazole salt with remarkably increased yield as compared with the conventional method.
揭示了一种制备5-巯基-1,2,3-噻二唑盐的方法,包括将由以下公式表示的缩醛化合物与由以下公式表示的多硫化合物反应:X.sub.3 C--CH.dbd.N--NH--SO.sub.2 Ar,其中X代表卤素原子,Ar代表芳基,多硫化合物由以下公式表示:M.sub.2 S.sub.x,其中M代表碱金属原子或NH.sub.4基团,x为2至6的整数。与传统方法相比,本发明提供了产率显著增加的5-巯基-1,2,3-噻二唑盐。