A compound of the formula: ##STR1## wherein R is a mono- or di-halo(C.sub.3 -C.sub.4)alkenyl group or a mono-halo(C.sub.3 -C.sub.4)alkynyl group and X is a chlorine atom or a bromine atom, which is useful as a herbicide.
一种化合物的结构式为:##STR1## 其中R为单卤或双卤(C.sub.3 -C.sub.4)烯基基团或单卤(C.sub.3 -C.sub.4)炔基基团,X为
氯原子或
溴原子,可用作
除草剂。