Described are compounds of the formula:
wherein R is a C₁-C₅ alkyl group, a C₃-C₄ alkenyl group, a C₃-C₄ alkynyl group, a C₁-C₂ alkoxy(C₁-C₂)alkyl group, a C₁-C₂ alkylthio(C₁-C₂)alkyl group or a mono- or polyfluoro(C₁-C₃)alkyl group, X is a C₁-C₄ alkylene group which may be substituted with at least one methyl or a -OCH₂- group and n is an integer of 0, 1 or 2, which are useful as herbicides.
所描述的是式中的化合物:
其中 R 是 C₁-C₅ 烷基、C₃-C₄ 烯基、C₃-C₄ 炔基、C₁-C₂ 烷氧基(C₁-C₂)烷基、C₁-C₂ 烷
硫基(C₁-C₂)烷基或一
氟或多
氟(C₁-C₃)烷基、X 是 C₁-C₄亚烷基,可被至少一个甲基或-OCH₂-基团取代,n 是 0、1 或 2 的整数,可用作
除草剂。