A compound of the formula: ##STR1## wherein R is a lower alkyl group substituted with two or three fluorine atoms and X is a halogen atom, a lower alkyl group or a trifluoromethyl group, which is useful as a herbicide against a variety of weeds with a high selectivity to cotton, wheat and rice plants.
一种化合物的
化学式如下:##STR1## 其中R是一个低碳烷基基团,被取代为两个或三个
氟原子,X是一个卤素原子、一个低碳烷基基团或三
氟甲基基团,对多种杂草具有
除草剂作用,并对棉花、小麦和稻米植物具有高选择性。