A compound of the formula: ##STR1## wherein Z is ##STR2## wherein R.sub.4 is lower alkyl, X and Y are oxygen or sulfur and n is an integer of 3 to 6, R.sub.1 is hydrogen or halogen, R.sub.2 is halogen and R.sub.3 is hydrogen or C.sub.1 -C.sub.8 -alkyl which may have lower alkoxy; a herbicidal composition containing said compound as an effective component; a method for killing weeds using said compound; and processes for the production of said compound, are disclosed hereinafter.
一种化合物的分子式为:##STR1## 其中Z为##STR2## 其中R.sub.4为较低的烷基,X和Y为氧或
硫,n为3至6的整数,R.sub.1为氢或卤素,R.sub.2为卤素,R.sub.3为氢或C.sub.1 -C.sub.8 -烷基,可能带有较低的烷氧基;包含该化合物作为有效成分的
除草剂组合物;使用该化合物杀灭杂草的方法;以及该化合物的生产方法,以下将披露。