• 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:
    1. Claims for the Contracting states : BE, CH, DE, FR, GB, IT, NL Phenoxy-phenoxy-propionic acid amides of the general formula I see diagramm : EP0011802,P11,F6 in which R1 is halogen, NO2 , CN and/or CF3 ; n is 1 or 2 ; R2 is hydrogen or (C1 -C4 )alkyl ; R3 is (C3 -C6 )alkenyl, (C3 -C6 )alkinyl, hydroxy-(C1 -C4 )alkyl, (C1 -C4 )alkoxy-(C1 -C4 )alkyl, di-(C1 -C4 )alkylamino-(C1 -C4 )alkyl, cyano-(C1 -C4 )alkyl, (C1 -C4 )alkylthio-(C1 -C4 )alkyl, (C5 -C6 )cycloalkyl, methylcyclohexyl, phenyl-(C1 -C4 )alkyl, pyridyl or pyrimidyl ; or R2 and R3 together with the adjacent N-atom form a 4 to 7-membered ring in which up to 2 carbon atoms can be replaced by N and/or O. 1. Claims for the Contracting state : AT Process for the preparation of phenoxy-phenoxy-propionic acid amides of the general formula I see diagramm : EP0011802,P13,F1 in which R1 is halogen, NO2 , CN and/or CF3 ; n is 1 or 2 ; R2 is hydrogen or (C1 -C4 )alkyl ; R3 is (C3 -C6 )alkenyl, (C3 -C6 )alkinyl, hydroxy-(C1 -C4 )alkyl, (C1 -C4 )alkoxy-(C1 -C4 )alkyl, di-(C1 -C4 )alkylamino-(C1 -C4 )alkyl, cyano-(C1 -C4 )alkyl, (C1 -C4 )alkylthio-(C1 -C4 )alkyl, (C5 -C6 )cycloalkyl, methylcyclohexyl, phenyl-(C1 -C4 )alkyl, pyridyl or pyrimidyl ; or R2 and R3 together with the adjacent N-atom form a 4 to 7-membered ring in which up to 2 carbon atoms can be replaced by N and/or O, which comprises reacting a) phenoxy-phenoxy-propionic acid halides of the formula see diagramm : EP0011802,P13,F2 or phenoxy-phenoxy-propionic acid esters of the formula see diagramm : EP0011802,P13,F3 in which R is (C1 -C8 )alkyl, with amine of the formula see diagramm : EP0011802,P13,F4 or b) reacting 3-hydroxy-4-nitro-diphenyl ethers of the formula see diagramm : EP0011802,P13,F5 or correspondings phenolates, with halo-propionic acid amides of the formula see diagramm : EP0011802,P14,F1 in which Hal is chlorine or bromine, optionally in the presence of acid-binding agents.
    公开号:SU940628A3
    申请号:SU792843127
    申请日:1979-11-23
    公开日:1982-06-30
    发明作者:Шеновски Хуберт；Бирингер Херманн；Кехер Хельмут
    申请人:Хехст Аг (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to chemical methods for controlling weeds and unwanted vegetation by treating it with herbicides. Weeds control methods are known based on the use of derivatives of aryloxyalkanoic carboxylic acids as herbicides. These include, for example, a method based on the use of N-ethylamide 2-nitro-5- (2, C-dichlorophenoxy) -d-phenoxypropionic acid 1. However, the known methods of this type are not sufficiently effective against certain types of weeds or are low-selective in relation to cultivated plants. The aim of the invention is a new method of controlling harmful plants with a herbicide, which has an increased efficiency. This goal is achieved by using the derivative of aryloxyalkanecarboxylic acid of the general formula HOR-R - SB C |) CH3 O -R where R is chlorine or trifluoromethyl as the herbicide; n 1 or 2; R is hydrogen or methyl; R is benzyl, allyl, 1-methylpropinyl, pyridin-2-yl, monosubstituted by Cd-alkyl, which may have g; idroxyl, methoxy, isopropoxy, methylthio or dimethylamino as a substituent; R and R together with nitrogen can form pyrrolidinyl, piperidine, β-methylpiperidinyl or morpholinyl in the amount of 0.6-2, t kg / ha. Methods for the preparation of compounds of general formula I are based on the reactions of the interaction of chlorine and the idrides of the corresponding phenoxyphenoxypropionic acids with amines in the presence of a hydrogen chloride acceptor and on the interaction of the esters of these acids with amines. The compounds of general formula I are used in the usual formulation:
    Table 1
    B
    oSn - (iN
    Concentrates, solutions, granules, powders, etc., are prepared by conventional methods. The content of active substances in these forms can be in the range of 2 to 95% by weight. Table 1 presents the compound of general formula I.
    Continued table. one
    2, C-dichlor
    2-chloro-4-trifluoromethyl
    2-chloro - + - trifluoromethyl
    2-chloro-β-trifluoromethyl Example 1. The seeds of the test plants are sown in flower pots and treated with an aqueous dispersion of wettable powders of active substances (pre-emergence treatment). After this, the plants are grown in greenhouse conditions and the effect is visually visually herbicidal. During the post-emergence treatment, plants are grown for 3 weeks to a height of 15-25 cm and then form 2, t 100 100 100 96 95 0.6 100 95 100 95 85
    65
    2 0.6
    100 90
    - СНл СНп С Н fjСН г2 2-methylthioethyl
    3-Dimethyl-aminopropyl
    2-hydroxyethyl
    75
    100 90 100 shy away with preparations of active substances. The evaluation of the herbicidal action was carried out 4 weeks after the treatment of the plants. For comparison, a known compound possessing herbicidal activity, ethylamide of 2-nitro-5- (-2-dichlorophenoxy) -ciL-phenoxypropionic acid (compound L), is used. The results of the experiments are presented in table 2. table 2
    2, k 65 0.6
    2, k 100 0.6 100
    2, i 100 0.6
    2, k 65 0.6 35
    2.4 65 0.6
    2.4 0.6
    2.4 0.6
    2.4 100 0.6 95
    2.4 0.6
    eight
    Continued Table 2 To determine the selectivity of the compounds of general formula J, crop plants are sown in the pots and treated with active substance preparations by the pre-emergence treatment method. The results of the experiment are presented in the table. The results of the experiments indicate the high efficiency of the proposed method, its selectivity of action. blitz 3
    权利要求:
    Claims (1)
    [1]
    The claims “Method ι the control of harmful plants by treating them or the soil on which they grow, herbicide-15 is a derivative of aryloxyalkanecarboxylic acid, distinguishing R 4 is chlorine or trifluoromethyl;
    1 or 2;
    hydrogen or methyl;
    benzyl, allyl, 1-methylpropis by the fact that, in order to increase the herbicidal activity, a compound of the general use is used as a derivative of aryloxyalkacharboxylic acid 30
    - C II about
    类似技术:
    公开号 | 公开日 | 专利标题
    SU710499A3|1980-01-15|Herbicidic substance
    SU701517A3|1979-11-30|Fungicidic composition
    CA1139751A|1983-01-18|3-isothiazolones as biocides
    RU2029471C1|1995-02-27|Pyrimidine derivatives, herbicide composition, and a method of struggle against weed using composition
    US4135910A|1979-01-23|Oxadiazol-3-yl-benzoates as plant growth regulants
    SU759045A3|1980-08-23|Method of protecting cultivated plants from undesired herbicide action
    CS207365B2|1981-07-31|Fungicide means
    SU940628A3|1982-06-30|Method for controlling harmful plants
    SU552010A3|1977-03-25|Herbicide
    US4115095A|1978-09-19|5-Aryl-1,2,4-thiadiazole-3-carboxylates and agricultural methods
    SU563893A3|1977-06-30|Herbicide compound
    SU1701103A3|1991-12-23|Method of struggle against weeds
    SU667099A3|1979-06-05|Herbicide
    US4166732A|1979-09-04|Oxadiazol-5-yl-benzoates
    SU978713A3|1982-11-30|Herbicidal preparation
    GB2058071A|1981-04-08|N-aryl-N-acyl-3-amino-oxazolidin- 2-one fungicides
    DE2643403A1|1977-04-07|MICROBICIDAL AGENTS
    US3105005A|1963-09-24|Methods of destroying nematodes with a pyridine base and its acid addition salts
    US4139366A|1979-02-13|2-[5-aryl-2-isoxazolin-3-yl]benzoates and use as herbicides
    US3227542A|1966-01-04|Method for controlling plant growth
    SU1264830A3|1986-10-15|Fungicide agent
    SU724073A3|1980-03-25|Method of fighting unwanted plant growth
    US4661599A|1987-04-28|Thiazoline compounds exerting an antidotal activity for the defense of agrarian cultivations from the action of non-selective herbicides
    US3681406A|1972-08-01|N-alkoxyalkylidenesulfonamide compounds
    US3772277A|1973-11-13|Sulfonamide compounds
    同族专利:
    公开号 | 公开日
    PH15050A|1982-05-20|
    JPS5589251A|1980-07-05|
    DE2963691D1|1982-11-04|
    CA1120034A|1982-03-16|
    AU5310379A|1980-05-29|
    DK499479A|1980-05-25|
    EG13962A|1982-09-30|
    IL58768D0|1980-02-29|
    EP0011802B1|1982-09-15|
    AT1548T|1982-09-15|
    ZA796371B|1980-11-26|
    IL58768A|1984-03-30|
    DE2850902A1|1980-06-12|
    BR7907605A|1980-08-05|
    AU524861B2|1982-10-07|
    EP0011802A1|1980-06-11|
    ES486054A1|1980-05-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2632581C2|1976-07-20|1982-07-15|Hoechst Ag, 6000 Frankfurt|Substituted nitrodiphenyl ethers, processes for their preparation and herbicidal compositions containing them|
    EP0000474B1|1977-06-30|1980-11-26|Ciba-Geigy Ag|Substituted 3--alpha-phenoxy alcanoic acids and their derivatives, their preparation and their use as herbicides|
    EP0003295B1|1978-01-20|1981-11-25|Ciba-Geigy Ag|Phenoxy-phenoxy-alkylcarboxylic acid derivatives with herbicidal activity, their preparation, compositions containing them and their use|US4404018A|1982-06-23|1983-09-13|Velsicol Chemical Corporation|Furfuryl amides of phenoxyphenoxyalkanoic acids and herbicidal use|
    US4427441A|1982-08-23|1984-01-24|Velsicol Chemical Corporation|Phthalimides of phenoxybenzoic acids|
    AR057455A1|2005-07-22|2007-12-05|Merck & Co Inc|INHIBITORS OF HIV REVERSE TRANSCRIPTASE AND PHARMACEUTICAL COMPOSITION|
    US8277645B2|2008-12-17|2012-10-02|Jarvis Jr Ernest|Automatic retractable screen system for storm drain inlets|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19782850902|DE2850902A1|1978-11-24|1978-11-24|NEW PHENOXY-PHENOXI-PROPIONIC ACID AMIDES AND THEIR USE AS HERBICIDES|
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