• 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:
    1362886 Phenylpyridazines CHEMIE-LINZ AG 2 June 1972 [11 June 1971] 25968/72 Heading C2C The invention comprises phenylpyridazines of general Formula (I) in which X is a chlorine or bromine atom and R is H, CH 3 or CH 3 CO, and their preparation by reacting a phenyldihalopyridazine of general formula in which Y is Cl or Br, with a compound MO R 1 , where M is an alkali metal or the equivalent of an alkaline earth metal and R 1 is H or CH 3 , preferably in an aqueous medium or in an organic solvent, e.g. methanol at 50‹ to 100‹ C., after which, when R in Formula (I) is CH 3 CO, the latter is introduced by acetylation of the hydroxy group. Examples describe the preparation of 3-phenyl-4-hydroxy-6-chloropyridazine,' 3 - phenyl - 4 - methoxy - 6 - chloropyridazine, 3 - phenyl - 4 - hydroxy - bromopyridazine and 3 - phenyl - 4 - acetoxy - 6- chloropyridazine. 3 - Phenyl - 4,6 - dichloropyridazine and 3- phenyl-4,6-dibromopyridazine are prepared by reacting 3 - phenyl - 4 - chloropyridazone - 6 with POCl 3 and PBr 5 respectively. Herbicidal compositions for the selective combating of weeds in crop plantings comprise one or more phenylpyridazines of general Formula (I) in admixture with a carrier, e.g. kaolin, preferably in the form of a dispersion, an emulsion, a pulverulent preparation or in the form of granules and when in the form of an aqueous dispersion or emulsion admixed with a wetting agent such as sodium oleyl-methyltauride.
    公开号:SU708980A3
    申请号:SU721799224
    申请日:1972-06-09
    公开日:1980-01-05
    发明作者:Дискус Альфред；Шенбек Руперт；Клоймштейн Энгельберт；Майер Хуберт
    申请人:Эстеррайхише Штикштоффверке Аг (Фирма)；
    IPC主号:
    专利说明:

    one
    This invention relates to a chemical plant protection agent, specifically a herbicidal agent based on pyridazine derivatives.
    It is already known that pyridazine derivatives, for example, 3-aryloxy-6-methylpyridazine, have herbicidal properties 1.
    In addition, it is also known that 3,4,6-trichloro-5-alkoxy-pyridazine is an active substance of the herbicidal agent 2.
    However, the known agents of this group have insufficient activity against plant copHbDs.
    The purpose of the invention is to find a new herbicidal agent with enhanced herbicidal activity.
    This goal is achieved by using an agent containing a compound of the general formula as an active substance.
    , 0V
    -
    (I) yy
    where X is a chlorine or bromine atom
    R is hydrogen, CH groups, j- or
    CHgCO, in the amount of 20-70 wt.%, As well as an additive selected from the group: filler, diluent, wetting agent.
    The use of the usual means; solutions, emulsions, dispersions, left-handed drugs. They are prepared by conventional methods - common in the manufacture of pestle formulas: ides.
    The compounds of the formula D are obtained by reacting 3-phenyl-4, b-ihalogenpyridazines with the Gch1HI or metal alkoxides to form compounds that can be acetylated if necessary.
    Example 1 Growing 1st in the greenhouse of weeds: crane and poppy seedlings, which have reached the stage of 4-6 leaves, are sprayed with a suspension of the proposed compounds: formulation - 2 kg of the active substance per hectare. For comparisons used 3, 4, 6-trichine or-5-methoxy-pyridaein and 3,4,6-trichloro-5-ethoxypyridaen.
    14 days after treatment, the herbicidal activity of the compounds with respect to the weeds is determined. Table 1 shows the scale assessment of herbicidal activity, Table 2 shows the results obtained.
    In the greenhouse I grow useful plants: wheat, barley, ovés | rye maize, rice, chaff, etc., timothy, sugar beets, radishes, spray them with aqueous suspensions or emulsions of active substances. By the time of processing, cereal crops, maize, rice have 3 leaves each, herbs are in the tillering stage, sugar beets and radishes have, along with germinal leaves, the two first true leaves. The dosage of active food is 5 kg per hectare. 14 days after treatment, the extent of damage to the beneficial plants is determined.
    The results of the experiment are given in table.3.
    P and me R 3. A weed mixture characteristic of cereals is sown in the open air. Depending on the development of the embryo or the duration of development typical for each type of weed, weeds develop differently by the time they are processed. By the time of treatment, most weeds are at the stage of 4-6 leaves, the types of seedlings at the stage of development shortly before flowering, the field chamomile has more than 10 leaves.
    Test compounds are used in the form of aqueous solutions at the rate of 2 and 4 kg of active substance per hectare. 3 weeks after spraying, the herbicidal activity is determined.
    The results of the experiment are given in table.4.
    T a
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    GMGN
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    to
    S X W F P (O S,
    and
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    (N m.-I cm "5VO
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    and
    and
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    about.
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    Se
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    1o
    U w
    kO H X
    S (O
     (| S
    h - I m
    hL
    S p I
    the proposed compound
    Weed to in quantity, kg / ha
    Table 4
    Herbicidal activity (in points)
    known compound, kg / ha
    权利要求:
    Claims (1)
    [1]
    Claim
    A herbicidal agent containing pyridazine derivatives as an active substance and an additive selected from the group of filler, diluent, wetting agent, and so on, in order to enhance the herbicidal activity of the agent, it contains a compound of general formula as pyridazine derivatives where X - a chlorine or bromine atom;
    R is hydrogen, groups CHj or CH3CO, in an amount of 20-70 weight. %
    类似技术:
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    US2973297A|1961-02-28|Fungicidal quaternary ammonium salts of dithiocarbamic acids
    US2843518A|1958-07-15|Fungicides and fungicidal compositions
    EP0019978B1|1982-11-17|Novel phenylpyrrole derivatives, process for the preparation thereof, fungicidal compositions containing them and method for controlling fungi
    HU184742B|1984-10-29|Nematocide compositions containing o-ethyl-s-alkyl-s-isopropyl-phosporous-dithiolate and process for producing the active agents
    KR880001515B1|1988-08-19|N-phenyl-dichoro maleimide derivatives and agricultural and horticultural fungicides
    US4106924A|1978-08-15|Pesticidal compositions
    JP3086741B2|2000-09-11|Agricultural and horticultural fungicide composition
    US3705914A|1972-12-12|Pesticidal carbamate derivatives of naphthaquinones
    同族专利:
    公开号 | 公开日
    US3790571A|1974-02-05|
    BE784692A|1972-12-11|
    CA986938A|1976-04-06|
    DE2129109B2|1978-10-12|
    NL171895B|1983-01-03|
    AT310765B|1973-10-10|
    HU164810B|1974-04-11|
    RO69106A|1982-10-26|
    FR2141253A5|1973-01-19|
    NL171895C|1983-06-01|
    NL7207515A|1972-12-13|
    JPS5224567B1|1977-07-01|
    DE2129109A1|1973-01-04|
    ZA723877B|1973-03-28|
    DE2129109C3|1979-06-07|
    CH563715A5|1975-07-15|
    GB1362886A|1974-08-07|
    CS158727B2|1974-11-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2229758A1|1972-06-19|1974-01-17|Lentia Gmbh|NEW PYRIDAZINE COMPOUNDS, THEIR PRODUCTION AND USE|
    DE2229744A1|1972-06-19|1974-01-10|Lentia Gmbh|NEW PYRIDAZINE COMPOUNDS, THEIR PRODUCTION AND USE|
    DE2256172A1|1972-11-16|1974-05-30|Lentia Gmbh|PHENYLPYRIDAZINE, THEIR PRODUCTION AND USE AS HERBICIDES|
    DE2331398C3|1973-06-20|1979-10-11|Lentia Gmbh|Esters of S-PhenyM-hydroxy-e-halopyridazine compounds, their preparation and herbicidal compositions containing them|
    AT334133B|1974-12-17|1976-12-27|Chemie Linz Ag|HERBICIDAL AGENT|
    US4340733A|1980-09-02|1982-07-20|Smithkline Corporation|Process for preparing 3-chloro-6--pyridazines|
    US4623376A|1984-04-16|1986-11-18|American Cyanamid Company|Herbicidal pyridazines and method for controlling undesirable plant species|
    AT397598B|1990-04-05|1994-05-25|Agrolinz Agrarchemikalien|HERBICIDAL AGENT|
    DE4013734A1|1990-04-28|1991-10-31|Agrolinz Agrarchemikalien Muen|Herbicidal compsns. contg. 3-phenyl-pyridazine derivs. - active against mono- and dicotyledonous weeds in e.g. cereal, onion, tomato or peanut crops|
    GB9603446D0|1996-02-19|1996-04-17|Sandoz Ltd|Organic compounds|
    ES2205156T3|1996-03-13|2004-05-01|Syngenta Participations Ag|HERBICIDE COMBINATIONS.|
    CN1310583A|1998-06-26|2001-08-29|诺瓦提斯药物公司|Herbicidal composition|
    EP1250047B9|2000-01-25|2005-05-18|Syngenta Participations AG|Herbicidal composition|
    ES2324883T3|2004-06-09|2009-08-18|Sumitomo Chemical Company, Limited|PIRIDAZINE COMPOSITE AND ITS USE.|
    CN106316962B|2015-07-01|2020-03-10|中国科学院上海有机化学研究所|3-aryl pyridazinone compound, preparation method, pesticide composition and application|
    CN111820224A|2019-04-22|2020-10-27|江苏清原农冠杂草防治有限公司|Herbicidal composition containing trifluoromethyl pyridazinol compound and application thereof|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2129109A|DE2129109C3|1971-06-11|1971-06-11|Phenylpyridazines, their manufacture and herbicidal compositions containing them|
    AT517771A|AT310765B|1971-06-11|1971-06-16|Process for the preparation of new phenylpyridazine compounds|
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