The invention concerns novel compounds of the formula I ##STR1## wherein: D and U are independently chosen from halogen, methyl and halomethyl; G is chosen from hydroxy, alkoxy, alkenyloxy, alkynyloxy, alkylthio, alkenylthio, alkynylthio, cycloalkoxy and the group OM wherein M is an alkali metal or alkaline earth metal ion; and k and l are independently chosen from 0 and 1. The compounds are herbicides and in further embodiments the invention provides processes for the preparation of compounds of formula I, intermediates useful in the preparation of compounds of formula I, herbicidal compositions containing as active ingredient a compound of formula I, and processes for severely damaging or killing unwanted plants by applying to the plants or to the growth medium of the plants and effective amount of a compound of formula I. Intermediates for making the compounds I wherein the group ##STR2## is replaced by hydroxy or C.sub.1 to C.sub.6 alkoxy are included.
本发明涉及一种新型化合物,其
化学式为I:##STR1## 其中:D和U分别选择自卤素,甲基和卤代甲基;G从羟基,烷氧基,烯基氧基,炔基氧基,烷
硫基,烯基
硫基,炔基
硫基,环烷氧基和OM组中选择,其中M是碱
金属或碱土
金属离子;k和l分别选择自0和1。这些化合物是
除草剂,在进一步的实施中,本发明提供了制备化合物I的过程,用于制备化合物I的中间体,含有化合物I作为活性成分的
除草剂组合物,以及通过向植物或植物的生长介质施加化合物I的有效量来严重损害或杀死不需要的植物的方法。包括制备化合物I的中间体,其中该基团##STR2##被羟基或C.sub.1至C.sub.6烷氧基所取代。