申请人:Sumitomo Chemical Company, Limited
公开号:US05874593A1
公开(公告)日:1999-02-23
There are disclosed an industrially favorable process for producing a tetrazole compound of general formula (1): ##STR1## characterized in that a nitrile of general formula (2): R.sup.1 CN (2) is reacted with hydrazine or a salt thereof in the presence of a catalyst, followed by reaction with a nitrous acid compound of general formula (3): ANO.sub.2 (3) or a nitrile of general formula (2) is reacted with hydrogen sulfide, followed by reaction with an alkyl halide of general formula (4): R.sup.4 J (4) with hydrazine or a salt thereof, and then with a nitrous acid compound of general formula (3); and an intermediate of general formula (5): R.sup.1 C(=R.sup.5)R.sup.6 (5) which is useful for the production of the tetrazole compound (in which R.sup.1 to R.sup.6, A and J in the above formulas are as defined in the specification).
公开了一种工业上有利的生产一般式(1)的四唑化合物的过程:##STR1## 其特征在于通式(2)的腈:R.sup.1 CN(2)在催化剂的存在下与叠氮化合物或其盐发生反应,然后与一般式(3)的亚硝酸化合物:ANO.sub.2(3)发生反应,或者通式(2)的腈与硫化氢发生反应,然后与一般式(4)的烷基卤化物:R.sup.4 J(4)与叠氮化合物或其盐发生反应,然后与一般式(3)的亚硝酸化合物发生反应;以及通式(5)的中间体:R.sup.1 C(=R.sup.5)R.sup.6(5),对于四唑化合物的生产是有用的(其中上述公式中的R.sup.1至R.sup.6,A和J的定义如规范中所定义)。