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    • 3. 发明公开
    • BENZOFURAN-7-YLURACIL DERIVATIVES AND HERBICIDES
    • 苯并呋喃-7-Y-URACIL-DERIVATE UNDERBIZIDE
    • EP0881223A1
    • 1998-12-02
    • EP97902621.8
    • 1997-02-07
    • KUMIAI CHEMICAL INDUSTRY CO., LTD.IHARA CHEMICAL INDUSTRY CO., LTD.
    • MIYAZAKI, MasahiroDEGUCHI, TakeshiTAKEHI, TakayoshiTAMARU, MasatoshiYAMAJI, YoshihiroHANAI, RyoUOTSU, SoutaSADOHARA, Hideo
    • C07D405/04A01N43/54
    • C07D405/04A01N43/54A01N47/02A01N47/12A01N47/14C07D405/14
    • A benzofuran-7-yl uracil derivative represented by the general formula (1):
      (wherein each of X and Y is a hydrogen atom, a halogen atom or the like, R 1 is a hydrogen atom, an alkyl group or the like, R 2 is a haloalkyl group or the like, R 3 is a hydrogen atom, a halogen atom or the like, each of R 4 and R 5 which are independent of each other, is a hydrogen atom, an alkyl group, a haloalkyl group, a halogen atom, a cyano group, a phenyl group, a benzyl group, a nitro group or the like), and a herbicide containing it as an active ingredient.
      The compound of the present invention represented by the general formula (1) exhibits excellent herbicidal effects against various weeds which cause trouble in upland fields, such as, broad leaved weeds, gramineous weeds and perennial or annual cyperaceous weeds, over a wide range from the pre-emergence to the growing stage. It can further control annual weeds and perennial weeds growing in paddy fields.
      On the other hand, the herbicide of the present invention is highly safe to crop plants and shows high safety especially to rice, wheat, barley, sorghum, corn, soybean, cotton and sugar beet.
    • 由通式(1)表示的苯并呋喃-7-基尿嘧啶衍生物:(其中X和Y各自为氢原子,卤素原子等,R 1为氢原子,烷基 基团等,R 2为卤代烷基等,R 3为氢原子,卤素原子等,R 4和R 5各自独立地为氢原子,卤原子等 是氢原子,烷基,卤代烷基,卤素原子,氰基,苯基,苄基,硝基等)和含有它作为有效成分的除草剂。 由通式(1)表示的本发明化合物在各种杂草中具有优异的除草效果,其在高纬地区例如阔叶杂草,禾本科杂草和多年生或一年生的季节性杂草中引起麻烦,范围广泛 出生前到成长阶段。 可以进一步控制稻田中的一年生杂草和多年生杂草。 另一方面,本发明的除草剂对作物的安全性高,对水稻,小麦,大麦,高粱,玉米,大豆,棉花和甜菜具有高的安全性。