Compounds corresponding to the formula ##STR1## wherein X represents chloro, bromo, or fluoro; R represents alkyl of 1 to 12 carbon atoms or a radical having the formula --(CH.sub.2).sub.n OR.sup.3 wherein n represents an integer of from 2 to 4 and R.sup.3 represents lower alkyl of 1 to 4 carbon atoms or phenyl; M represents hydrogen or methyl; R.sup.1 represents hydrogen, lower alkyl of 1 to 4 carbon atoms, amino or loweralkylamino of 1 to 4 carbon atoms; and R.sup.2 represents hydrogen, X, loweralkyl, amino or loweralkylamino, with the proviso that one of R.sup.1 or R.sup.2 is always amino or loweralkylamino and the other of R.sup.1 and R.sup.2 is always other than amino or loweralkylamino are prepared. These compounds are useful as herbicides and as active agents in compositions used as herbicides.
该化合物对应的
化学式为##STR1##,其中X代表
氯、
溴或
氟;R代表1到12个碳原子的烷基或具有公式--(CH.sub.2).sub.n OR.sup.3的基团,其中n表示2到4的整数,R.sup.3表示1到4个碳原子的低烷基或苯基;M代表氢或甲基;R.sup.1代表氢、1到4个碳原子的低烷基、
氨基或1到4个碳原子的低烷基
氨基;R.sup.2代表氢、X、低烷基、
氨基或低烷基
氨基,但其中R.sup.1或R.sup.2始终为
氨基或低烷基
氨基,而另一个R.sup.1和R.sup.2始终不为
氨基或低烷基
氨基。这些化合物可用作
除草剂,并可用作用于
除草剂的组合物中的活性剂。