Diphenyl ether derivatives having the general formula I,
in which 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; and R₄ represents and a hydrogen atom or an alkyl group.
具有通式 I 的
二苯醚衍
生物
其中 R₁ 代表氢原子、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、卤素原子或烷基、卤代烷基、硝基或
氰基;以及 R₄ 代表氢原子或烷基。