Compounds of the formula ##STR1## wherein R is halogen, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, cyano, nitro, S(O).sub.n R wherein R is C.sub.1 -C.sub.4 alkyl and n is the integer 0, 1 or 2; and R.sup.2 through R.sup.8 are hydrogen or certain substituents, their salts, herbicidal compositions containing the compound or salts and the herbicidal use thereof.
分子式为##STR1##的化合物,其中R为卤素,C.sub.1-C.sub.4烷氧基,C.sub.1-C.sub.4烷基,C.sub.1-C.sub.4卤代烷基,
氰基,硝基,S(O).sub.n R,其中R为C.sub.1-C.sub.4烷基,n为整数0、1或2; R.sup.2至R.sup.8为氢或某些取代基,它们的盐,含有该化合物或盐的
除草剂组合物以及其
除草剂用途。