1,4-Disubstituted-5(4H)-tetrazolinones of the formula (I)
(wherein R¹, R² and R³ have the meanings given in the specification), which are known to be useful as herbicides, can be obtained in very good yields by reacting the corresponding 1-substituted-5(4H)-tetrazolinones with the corresponding carbamoyl chlorides in the presence of 4-dimethylaminopyridine.
式 (I) 的 1,4-二取代-5(4H)-
四唑啉酮
将相应的 1-取代-5(4H)-
四唑啉酮与相应的
氨基
甲酰氯在 4-二甲
氨基吡啶存在下进行反应,可获得收率极高的 1,4-二取代-5(4H)-
四唑啉酮,该化合物已知可用作
除草剂(其中 R¹、R² 和 R³ 的含义见说明书)。