申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0219144A1
公开(公告)日:1987-04-22
Phenoxy phthalide derivatives having the general formula
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; and R4 and R5, which may be the same or different, each independently represents an alkyl group. Processes for the preparation of such compounds, herbicidal compositions containing them, and their herbicidal use.
具有通式的苯氧基邻苯二甲酸酯衍生物
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;R4 和 R5(可以相同或不同)各自独立地代表烷基。这类化合物的制备工艺、含有这类化合物的除草组合物及其除草用途。