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Diphenyl ether derivatives, to a process for preparing such compounds, herbicidal compositions containing such compounds and their use in combating undesired plant growth
Diphenyl ether derivatives, to a process for preparing such compounds, herbicidal compositions containing such compounds and their use in combating undesired plant growth
Phenoxy phthalide derivatives having the general formula II: CHEM 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; each group R4 represents an an identical alkenyl or alkynyl group; and X represents an oxygen or sulphur atom; together with their preparation, and use as herbicides.
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机译:通式II的苯氧基苯酞衍生物:<化学式>其中R 1代表氢或卤素原子或烷基或卤代烷基; R 2和R 3可以相同或不同,各自独立地表示氢或卤素原子或烷基,卤代烷基,硝基或氰基;每个基团R 4代表相同的烯基或炔基。 X表示氧或硫原子;连同其制备方法,并用作除草剂。
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