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    • 4. 发明授权
    • Urea derivatives, and their use as herbicides
    • 尿素衍生物及其作为除草剂的用途
    • US4690709A
    • 1987-09-01
    • US203485
    • 1980-11-03
    • Ichiki TakemotoSeizo SumidaRyo YoshidaKatsuzo Kamoshita
    • Ichiki TakemotoSeizo SumidaRyo YoshidaKatsuzo Kamoshita
    • A01N47/30C07C275/34C07C275/64C07C127/19C07C119/00
    • C07C275/64A01N47/30C07C275/34
    • Novel N'-phenyl-N-methylurea derivatives of the formula: ##STR1## wherein R.sub.1 is a hydrogen atom, a methyl group or a methoxy group, R.sub.2 is a hydrogen atom or a lower alkyl group, R.sub.3, which may be the same or different, is a halogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group or a trifluoromethyl group, n is an integer of 0 to 5, X is a hydrogen atom or a halogen atom, Y is an oxygen atom or a sulfur atom and Z is a straight or branched C.sub.1 -C.sub.8 alkylene group which may have no less than one atom of oxygen and/or sulfur at the terminal of and/or inside the carbon chain, which shows a pronounced herbicidal activity against a wide variety of weeds in the cultivation of crop plants as well as a notable fungicidal activity agaist a wide variety of phytopathogenic fungi causing plant diseases to crop plants without any material toxicity to mammals and fish or chemical injury to said crop plants.
    • 新颖的下式的N-苯基-N-甲基脲衍生物:其中R1是氢原子,甲基或甲氧基,R2是氢原子或低级烷基,R3可以相同 或不同的是卤素原子,低级烷基,低级烷氧基,低级烷硫基或三氟甲基,n为0〜5的整数,X为氢原子或卤素原子,Y为氧 原子或硫原子,Z是在碳链末端和/或内部可以具有不少于一个氧原子和/或硫原子的直链或支链C 1 -C 8亚烷基,其显示出明显的除草活性 种植作物的各种杂草以及显着的杀真菌活性使各种植物病原真菌引起植物病害,对作物没有任何物质毒性,对所述作物的哺乳动物和鱼类或化学损伤没有任何物质毒性。