• 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:
    Herbicidal diphenyl ether compounds of the formula: <IMAGE> wherein R<1> is an alkyl group optionally substituted by fluorine, phenyl or halophenyl; R<2> is hydrogen, halogen or nitro; R<3> is hydrogen, halogen, alkyl, trifluoromethyl, or cyano; R<4> is hydrogen, halogen, or trifluoromethyl; R5 is halogen or trifluoromethyl; and R<6> is hydrogen, or C1-C4 alkyl; may be obtained by standard organic syntheses e.g. by reacting the corresponding diphenyl ether acid chloride with a sulphonamide of the formula R<1>SO2 NH2. These compounds are useful as selective herbicides in a range of crops, for example cotton, soya bean, peas, maize, wheat and rice.
    公开号:SU1075941A3
    申请号:SU792715603
    申请日:1979-01-19
    公开日:1984-02-23
    发明作者:Картрайт Дэвид；Джон Коллинз Дэвид
    申请人:Империал Кемикал Индастриз Лимитед (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to chemical methods of controlling weed and undesirable plants by treating them with herbicidally active chemicals.
    There is a known method of controlling non-patchy vegetation based on the use of diphenyl ether derivatives, for example, 2-halo-4-tri-fluoromethyl-3-carboxy 4 -nitrodiphenyl ethers, (D
    However, the known method is not effective enough in relation to certain types of undesirable plants.
    The aim of the invention is to improve the efficacy of a method for controlling undesirable plants based on uses of diphenyl ether derivatives. .
    This goal is achieved by the fact that. Compounds of the general formula are used as derivatives of diphenyl e-fat.
    where 1 h, - Ci Cg alkyl, trifluoromethyl ,. 2,2,2-trifluoroethyl, benzyl, 2-phenylethyl. ,
    RO is hydrogen, halo, nitro,
    R, j - hydrogen, halogen, methyl-, trifluoromethyl, cyanogroup, pa5
    R - hydrogen, fluorine, chlorine, bromine, methyl, cyano group
    Rr - fluorine, chlorine, bromine, trifluoromethyl,.
    R is hydrogen or methyl, in the amount of 0.2-5 kg / ha.
    The proposed method is effective in both pre-emergence and post-emergence destruction of undesirable plants. In addition, it can successfully be used to selectively destroy weeds in crops of various agricultural crops, such as cotton, soybean, wheat, rice, beans or barter
    Compounds of general formula (I). Use in general formulation such as powders, pastes, concentrates, etc. They are prepared by known methods.
    . In tab. Figure 1 shows the compounds of general formula (I) used in the proposed method. -
    EXAMPLE 1. Compounds (Table 1 are tested for herbicidal properties. The compound is turned into a preparation. By mixing its specific amount with 5 ml of emulsions prepared times I
    By adding 160 ml of a solution containing 21.8 g / l of Span 80 and 78.2 g / l of Tween 20 in methylcyclohexanone, in water up to 500 ml. Spawn 80 is a surfactant containing monolaurinate sorbitol, Tween 20 is a surfactant containing condensation product of a 20 molar fraction of ethylene oxide with sorbitol monolaurinate. The mixture of compound and emulsion was shaken with glass beads and diluted with water to 40 ml. Cooked like this
    In a method, the preparation is applied by spraying on young plants in a pot.
    5 as (nan.osenie after: the emergence of seedlings) at a dosage of 1000 l / ha. Plant damage is assessed 14 days after spraying by comparison with untreated plants.
    0 using the scale from O to 5, where O - damage O - 20%; 5 complete destruction.
    The effectiveness of the treatment carried out until the left of the seedlings, the Seeds. Planted plants are placed on the soil surface in fiber trays and are also determined. o.pryskivayut. drug at a dosage of 1000 l / ha. After this, the seeds are covered with an additional layer of soil. After three not. after spraying, growths in treated fiber trays are compared with sprouts in untreated controls | trays and damage are assessed. on a scale from 0 to 5.
    The test results are given in. tab. 2, where the names are
    experimental plants: A - sugar beet -. la, B - rape, C - cotton, D - soybeans, D - maize, E - winter wheat, F - rice, 3 - groundflower, - And ipome, K - schiritsa, L - mountaineer, M mar,. H - purslane, O - Cocktail, P -. Cantone, P - Convolvulus, C - Oats, T - Chloris, U - M Tlik, F - Bristles Nick, X - Cornberry, C - Sorghum, H Zhitn K and W - Syt .
    EXAMPLE 2: Experiments are performed analogously to Example 1, but using
    Other experimental plants. In addition, when tested after the emergence of seedlings, seeds are sown in trays with soil and covered with several millimeters of soil. The spraying of the proposed compound is sprayed, as in the previous tests, seeds were sprayed directly.
    The preparations are prepared analogously to example 1, but use a solution in cyclohexanone containing Spreader IRE 1800 (a condensation product of ethylene oxide with nonyl phenol propylene oxide) and Tween 85 (a condensation product of sorbitol trioleinate with 20 molar fractions of ethylene oxide) instead of 5 tilcyclohexanone as a solution
    Ethyl
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     n Methyl Hydrogen
    Continued tabl, 1
    65
    2,2,2-Trifluoroethyl
    Continued tabA. one
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    权利要求:
    Claims (2)
    [1]
    METHOD OF STRUGGLE AGAINST UNWANTED PLANTS by treating them or the soil on which they are grown. thaw, derivatives of diphenyl ether, characterized in that, in order to increase the efficiency of the method, as derivatives of diphenyl ether use a compound of General formula ·; I
    Kb 'where R is Cf-Cb-alkyl, trifluoromethyl, 2,2,2-trifluoroethyl, benzyl, i
    [2]
    2-phenylethyl,
    R ^ - hydrogen, halogen, nitro group ',
    R „is hydrogen, halogen, methyl, trifluoromethyl, cyano;
    R 4 is hydrogen, fluoro, chloro, bromo, methyl, cyano;
    Kg is fluoro, chloro, bromo, trifluoromethyl;
    R $ is hydrogen or methyl, in an amount of 0.2-5 kg / ha.
    Priority by signs: 01/19/78 at Rj - methyl, ethyl, r 2 - nitro group,, Rj - chlorine,
    R 4 - hydrogen, R $ · - trifluoromethyl, R 6 - HYDROGEN
    05/30/78 at R <- C -Sb-alkyl, trifluoromethyl, 2,2,2-trifluoroethyl, benzyl, 2-phenylethyl-,
    Rg is hydrogen, halogen; R- is hydrogen, fluoro ', bromo,' iodine, methyl, trifluoromethyl, cyano;
    R. - fluorine, chlorine, bromine, methyl, cyano,
    Rj is fluoro, chloro, bromo, R 6 is methyl.
    , SU 1075941
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    US4164410A|1971-02-11|1979-08-14|Mobil Oil Corp.|Esters of substituted phenoxybenzoic acids, compositions of the same and herbicidal use thereof|
    US4164408A|1971-02-11|1979-08-14|Mobil Oil Corp.|Salts of substituted phenoxybenzoic acids, compositions of the same and herbicidal use thereof|
    US4164409A|1971-02-11|1979-08-14|Mobil Oil Corp.|Substituted phenoxybenzoic acids, compositions of the same and herbicidal use thereof|
    US3840597A|1971-02-24|1974-10-08|Riker Laboratories Inc|Substituted 2-phenoxy alkane-sulfonanilides|
    US3906024A|1971-02-24|1975-09-16|Minnesota Mining & Mfg|Perfluoroalkanesulfonamidoaryl compounds|
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    US3928416A|1972-03-14|1975-12-23|Rohm & Haas|Herbicidal 4-trifluoromethyl-4{40 nitrodiphenyl ethers|
    US4063929A|1973-02-12|1977-12-20|Rohm And Haas Company|Herbicidal 4-trifluoromethyl-4'nitrodiphenyl ethers|
    AT315147B|1972-04-14|1974-05-10|Lilly Co Eli|Process for the preparation of new N <1> -alkoxyalkylidene-3,5-dinitro-sulfanilamides|
    CA1140563A|1976-12-03|1983-02-01|Wayne O. Johnson|Herbicidal esters of 4-trifluormethyl-3'-carboxy-4'-nitro diphenyl ethers|EP0003648A3|1978-02-15|1979-09-05|Imperial Chemical Industries Plc|4-aryloxy-substituted phenoxypropionamide derivatives useful as herbicides, compositions containing them, and processes for making them|
    US4780128A|1979-07-18|1988-10-25|Imperial Chemical Industries Plc|Herbicides|
    US4465508A|1979-07-18|1984-08-14|Imperial Chemical Industries Plc|Diphenyl ether herbicides|
    US4340417A|1980-02-01|1982-07-20|Rhone-Poulenc Agrochimie|Herbicidal 1-phenoxy]-2-nitrobenzoyl)-3-isopropyl-2,1,3-benzothiadiazin-4-one,2,2-dioxide|
    DE3165721D1|1980-02-05|1984-10-04|Ici Plc|Method of preparing fluorine-substituted diphenyl ether derivatives and fluorine-substituted halogeno benzene derivatives for use therein|
    US4447634A|1981-04-30|1984-05-08|Rhone-Poulenc Agrochimie|Herbicidal arylsulfonamide derivatives of phenoxybenzoic acids|
    US4410353A|1981-07-17|1983-10-18|Rhone-Poulenc Agrochimie|Herbicidal N-sulfonyl 5-[substituted phenoxy]-2-substituted benzamides|
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    US4388105A|1981-07-27|1983-06-14|Rhone-Poulenc Agrochimie|Herbicidal cyclic sulfonamides of phenoxybenzoic acids|
    US4452629A|1982-08-19|1984-06-05|Heiba El Ahmadi I|Herbicidal N,N'-thio-5-2-substituted benzoic acid sulfonamides and sulfamidoyl fluoride|
    US4528145A|1982-09-24|1985-07-09|Heiba El Ahmadi I|Herbicidal N-substituted-5-2-substituted benzoic acid sulfamidoyl fluoride|
    CH658453A5|1982-12-17|1986-11-14|Rhone Poulenc Agrochimie|PROCESS FOR THE PREPARATION OF SULFONAMIDE GROUP ARYLOXYBENZOIC ACIDS.|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB223778|1978-01-19|
    GB2377278|1978-05-30|
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