Phenoxy phthalide derivatives having the general formula II:
wherein R₁ represents a hydrogen or halogen atom or an alkyl or haloalkyl group; R₂ and R₃, which may be the same or different, each independently represents a hydrogen or halogen atom or an alkyl, haloalkyl, nitro or cyano group; R₄ represents a saturated alkyl group; R₅ represents an unsaturated alkyl group; and X represents an oxygen or sulphur atom, are useful as herbicides.
具有通式 II 的苯氧基
邻苯二甲酸酯衍
生物:
其中 R₁ 代表氢原子或卤素原子或烷基或卤代烷基;R₂ 和 R₃ 可以相同或不同,各自独立地代表氢原子或卤素原子或烷基、卤代烷基、硝基或
氰基;R₄ 代表饱和烷基;R₅ 代表不饱和烷基;X 代表氧原子或
硫原子,可用作
除草剂。