申请人:Lederle (Japan), Ltd.
公开号:US04540794A1
公开(公告)日:1985-09-10
A method for preparing a 5-mercapto-1,2,3-thiadiazole salt represented by the general formula (I) is disclosed: ##STR1## the method comprises the steps of: providing a sulfonylhydrazone derivative represented by the general formula (II): ##STR2## providing a sulfide represented by the general formula (III): M--S--M' (III) (wherein R is an aryl group, X is a chlorine or bromine atom, M is an alkali metal atom and M' is a hydrogen atom or an alkali metal atom); combining the sulfonylhydrazone derivative represented by the general formula (II) and the sulfide represented by the general formula (III) and allowing a reaction to occur; and obtaining the 5-mercapto-1,2,3-thiadiazole salt represented by the general formula (I).
揭示了一种制备由通式(I)表示的5-巯基-1,2,3-噻二唑盐的方法:##STR1## 该方法包括以下步骤:提供由通式(II)表示的磺酰腙衍生物:##STR2## 提供由通式(III)表示的硫化物:M--S--M' (III)(其中R是芳基,X是氯或溴原子,M是碱金属原子,M'是氢原子或碱金属原子);将由通式(II)表示的磺酰腙衍生物和由通式(III)表示的硫化物结合并允许反应发生;并获得由通式(I)表示的5-巯基-1,2,3-噻二唑盐。