• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    This invention relates to chemical methods for controlling weeds and unwanted vegetation. The essence of the present invention is to destroy undesirable plants with a sulfonylurea derivative of the formula @ The dose of the active substance for effectively damaging a wide range of unwanted plants ranges from 1 to 250 g / ha. The proposed method is better known. 2 tab.
    公开号:SU1553006A3
    申请号:SU874202194
    申请日:1987-03-06
    公开日:1990-03-23
    发明作者:Энн Хэнеген Мери
    申请人:Е.И.Дюпон Де Немур Энд Компани (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to chemical methods for controlling weeds and unwanted vegetation.
    The aim of the invention is to enhance the herbicidal action and improve the selectivity of the weed control method based on the use of a sulfonylurea derivative.
    II p. Example 1. Preparation of H- (3-Dimethylaminocarbonyl-pyridin-2-yl-sulfonyl) - (4,6-dimethoxypyrimidin-2-yl) -urea (compound A).
    To a suspension of 0.5 g (2.2 mmol) of 3-H, M-dimethylaminocarbonyl-2-aminosulfonylpyridine and 0.6 g (2.2 mmol) of 4,6-dimethoxypyrimidin-2-yl-phenyl carbamate in 3 ml of acetonitrile, 0.32 ml (2.2 mmol) of 1,8-diaebicyclo-(5.4,4) undec-7-ene is added. The resulting solution was stirred at room temperature for 7 minutes, 6 ml of water and 10% hydrochloric acid (dropwise) were added, the precipitated precipitate was filtered off and 0.75 g of the title product was obtained with mp. 142-159 ° C.
    EXAMPLE 2: Determination of herbicidal action.
    Special vessels fill the sandy-sandy soil and sow seeds of experimental plants in it. The seed soil is treated with a solution of the active substance in a non-phytotoxic solvent until germination. The controls are untreated plants. Evaluation of the herbicidal action was carried out 24 days after treatment on a scale of from 0 to 100 (0 - no effect, 100 - complete death of plants).
    Experimental plants grown under greenhouse conditions up to the 14-day stage are treated with solutions of the active compound.
    SP
    WITH

    cm
    and evaluates the herbicidal effect in the same manner as described.
    A known herbicidally active substance is used for comparison: N- (3-methyl-pyridin-2-yl-sulfonyl) -N1- (4,6-dimethoxypyrimidin-2-yl) urea (compound B).
    The results of pre-emergence treatment jg plants are given in table. 1, and after-germination treatment - in table. 2
    权利要求:
    Claims (1)
    [1]
    Formula and h
    The way to combat unwanted vegetation by treating it or
    a soil on which it grows, a sulfonylurea derivative, characterized in that, in order to enhance the herbicidal effect and improve the selectivity, a compound of the formula sulfonylurea is used as a sulfonylurea derivative.
    ABOUT
    CNICH3) 2
    (of
    4N S02NHCNH - (O)
    d -
    Ochjj
    in the amount of 1 - 250 g / ha.
    Table 2
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1466634A3|1989-03-15|Method of controlling undesirable vegetation
    SU1223827A3|1986-04-07|Method of fighting undesirable plants
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    CA1108618A|1981-09-08|1, 2, 3-thiadiazol-3-in-5-ylidene ureas, a process for their manufacture and their use in regulating the growth of plants
    US4006007A|1977-02-01|N-| derivatives of saccharin
    SU694044A3|1979-10-25|Plant growth regulating composition
    US4237302A|1980-12-02|Dichloroacetylimino herbicide antagonists as plant protection agents
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    US6348614B1|2002-02-19|Aminobutyric acid fungicides
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    SU1452460A3|1989-01-15|Method of controlling weeds
    SU1215603A3|1986-02-28|Method of controlling weed vegetation
    SU1410859A3|1988-07-15|Method of controlling weeds
    SU1019991A3|1983-05-23|Method for controlling undesired plants
    US3246976A|1966-04-19|Method for controlling crab grass and water grass
    SU1209018A3|1986-01-30|Method of controlling weeds
    SU849976A3|1981-07-23|Fungicido-insecticidic agent
    同族专利:
    公开号 | 公开日
    JPS62223180A|1987-10-01|
    ZA871590B|1988-11-30|
    MX5495A|1993-06-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPH0210268B2|1984-06-29|1990-03-07|Sukai Sangyo Kk|
    JPS6119006A|1984-07-04|1986-01-27|Hitachi Cable|Wear resistant tape winding|
    JPS6186847A|1984-10-03|1986-05-02|Japan Electronic Control Syst Co Ltd|Cpu runaway preventing device for automobile controller|
    JPS61178489A|1985-01-30|1986-08-11|Seiko Epson Corp|Production of corundum|
    IN164880B|1986-01-30|1989-06-24|Ishihara Sangyo Kaisha|JP2689093B2|1986-01-30|1997-12-10|石原産業株式会社|Substituted pyridine sulfonamide compounds, herbicides containing them and method for producing these compounds|
    JPH0912553A|1986-01-30|1997-01-14|Ishihara Sangyo Kaisha Ltd|Substituted pyridine-based compound|
    JP2567353B2|1986-01-30|1996-12-25|石原産業株式会社|Substituted pyridine compound|
    JP2717947B2|1987-08-10|1998-02-25|石原産業株式会社|Herbicidal composition|
    NZ225473A|1987-08-10|1990-02-26|Ishihara Sangyo Kaisha|Herbicidal compositions containing sulphonylurea derivatives and known herbicides|
    JP2717948B2|1987-08-10|1998-02-25|石原産業株式会社|Herbicidal composition|
    JPH0848604A|1987-08-10|1996-02-20|Ishihara Sangyo Kaisha Ltd|Herbicidal composition|
    WO1989006230A1|1988-01-04|1989-07-13|E.I. Du Pont De Nemours And Company|Cyano-dienes, halopyridines, intermediates and a process for their preparation|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US83739286A| true| 1986-03-07|1986-03-07|
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