Compounds defined by the generic formula ##STR1## wherein R is selected from the group consisting of trifluoromethyl, dimethyl, chloro, and dichloro, R.sup.1 is methyl or ethyl, and R.sup.2 is methyl or ethyl, exhibit herbicidal activity.
根据通用公式##STR1##定义的化合物,其中R从三
氟甲基、二甲基、
氯或二
氯组成的群体中选择,R.sup.1是甲基或乙基,R.sup.2是甲基或乙基,具有除草活性。