This invention relates to 1-substituted-phenyl-3-substituted-2-thioxo-4,5-imidazolidinediones and 2,4,5-imidazolidinetriones of formula I which have activity as herbicides, to compositions which contain these compounds and to methods of use of these compounds. In particular, the present invention pertains to 2-thioxo-4,5-imidazolidinediones or 2,4,5-imidazolidinetriones wherein a 2,4,5,6-tetrasubstituted phenyl ring is linked to the heterocyclic ring.
本发明涉及具有
除草剂活性的式 I 的 1-取代苯基-3-取代-2-
硫酮-4,5-
咪唑烷二酮和 2,4,5-
咪唑烷三酮,涉及含有这些化合物的组合物以及这些化合物的使用方法。本发明尤其涉及 2-
硫酮-4,5-
咪唑烷二酮或 2,4,5-
咪唑烷三酮,其中 2,4,5,6-四取代苯基环与杂环相连。