• 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:
    A new and improved herbicidal and plant growth regulating composition, and the method of manufacturing that composition. The new complex composition of the invention is an inclusion complex of one more benzene sulphonyl urea derivative of the general formula (II) <IMAGE> (II) and two or more moles of beta cyclodextrine of the formula (I). <IMAGE> (I)
    公开号:SU1516002A3
    申请号:SU853912654
    申请日:1985-06-07
    公开日:1989-10-15
    发明作者:Матолчи Дьердь；Гимеши Антал；Пелейтеи Кристина；Статис Янис；Томбор Агота；Чернати Тибор；Герлей Анико；Кардош Марианн；Дукаи Йожеф；Шебок Деже；Шептеи Чаба；Надь Лайош；Белаи Иван
    申请人:Нитрокемиа Ипартелепек (Инопредприятие)；
    IPC主号:
    专利说明:

    Plant protection agents. Benzenesulfonylurea derivatives are poorly soluble in water, which makes it difficult to obtain plant protection products based on them.
    The proposed complexes are highly stable and can be stored without decomposition for a long time.
    Under greenhouse conditions, the herbicidal activity of the proposed complexes is at least not lower than the herbicidal activity of the benzenesulfonylurea derivatives, and often exceeds the herbicidal activity of the latter.
    During field trials, it has been established that the effectiveness of the minicles in accordance with the invention at the same doses is the same or higher than the most active representatives of known sulfonylurea type herbicides, although the sulfonylurea part is only a small (approximately one sixth) fraction of the molecule. This plays an important (from an economic point of view) role, since it becomes possible to reduce the consumption of the sulfonylurea compound obtained in the process of many: sl, the natural, costly synthesis. On the other hand, when using the proposed complexes, soil contamination with chemicals is reduced, since the major part of the oligosaccharide complex molecule is similar in structure to natural sugars, which cannot be considered as a soil contaminant chemical. This is one of the most significant advantages of the proposed ffllekos from the point of view of environmental protection from pollution.
    The complexes proposed in accordance with the invention, when used in small doses, have a stimulating effect on the growth of useful plants, in particular this is manifested in pre-emergence processing.
    To obtain the proposed complexes, 1 mol of the benzene sulphonylurea derivative is subjected to interaction with at least 2 mol, 3-dextrin.
    In a preferred embodiment, a suspension of the benzenesulfonylurea derivative is slowly added to the water-alcohol solution of / 3-cyclodextrin.
    in a water-immiscible organic solvent. The reaction is slightly exothermic. The reaction mixture is stirred for 2-6 hours and concentrated, preferably at room temperature. Compounds are preferably taken in a 1: 2 ratio. The formation of complexes (new compounds) has been proven using thermal analysis. Conducted their identification.
    The thermoanalytical method (TEA Thermal Evolution Analyzer) is applicable to proving the formation of a complex
    5 in the event that the evaporation or decomposition of the compound used for the preparation of the complex (benzenesulfone-, a) occurs at a lower temperature than the decomposition of (3-dextorine) (300 ° C) (the decomposition of the complex occurred at a temperature above the decomposition temperature of the molecule, forming a complex with / 3-dextrin).
    5 Herbicidal agent obtained as follows
    A sample of the test compound is placed in an oven. Heat the furnace at a linear rate of approximately C / min. The decomposition product removed from the sample in a certain temperature range is introduced with an inert gas (i, 8 liters of nitrogen per minute) into a flame ion detector. A signal appears in the detector proportional in magnitude to the content of organic matter released from the sample. The temperature range characterizes the nature of the substance, and the area bounded by the curve
    0 and the abscissa axis, its number „
    The examples show the temperature ranges for the decomposition of the benzene sulfonylurea derivative and the novel compound (complex).
    5 Example. The N- (4-methoxy-6-methyl-1,3,5-triazin-2-yl) -aminocarbonyl} -2-chlorobenzenesulfonamide-y-cyclodextrin complex.
    To water containing 30% ethanol
    At 37 ° C, a suspension of 1 mol of N- (4-methoxy-6-methyl-1,3,5-triazin-2-yl) -aminocarbonyl -2-chloro is added dropwise to a solution of 2 mol of b-cyclodextrin. - benzene sulfonamide in immiscible with
    cj water is an organic solvent. The temperature of the suspension is equal. The reaction mixture is vigorously stirred for 4 hours at 37 ° C and then evaporated at room temperature to dryness.
    The result is the target compound. Mol at. 2627.5.
    According to TEA data, the obtained complex decomposes at a temperature higher. The temperature range of decomposition of the benzenesulfonylurea derivative is equal to 160-240 ° C.
    PRI mme R 2. The K-C complex (meth oxy-6-methyl-1,3,5-triazin-2-yl) aminocarbonyl -2- (metroxycarbonyl) -benzo-sulfonamide and / l-cyclodextrin
    In the same way as in example 1, the interaction between the corresponding
    benzenesulfonylurea derivative



    - diclodextrin, taken in a molar ratio of 1: 2. The molecular weight of the resulting complex is 2651. According to TEA, decomposition was obtained. Evaluation was performed 8-16 days after treatment. The results of the experiments in the greenhouse are presented in table 1.
    In open field conditions
    The herbicidal action of the complex - (chloro) -benzenesulfonyl -c-4- (methoxy) -b- (methyl) -, 3, 3 -triazin-2 -ylJ-urea sr-cyclotocrine. The test compounds according to the invention and comparative compounds — N-G2 - (xlop) - benzenesulfonyl-H - (methoxy) - 6 - (methyl) -, 3, 5 -triazin-2 - yl-urea were used as pre-emergence and post-emergence hernia. Bicidic active substances at different consumption rates. The corresponding biologically active substance was dispersed with tween in 1000 l / ha of water. The biologically active substance according to the invention was introduced at a consumption rate of 30, 60 and 120 g / ha (this corresponds to a consumption rate of 5, 10 and 20 g / ha (chlorine) -benzenesulfonylJ-N-L4 - (methoxy) -b (methyl) - 3, 5 -triazin-2 -yl-ureas); A comparative compound (chlorine) -benzene-sulfonyl-3-K-4 - (methoxy) -b - (methyl) -, 3, 5 -triazin-2 cheviia was applied to plants at a consumption rate of 20 g / ha of biologically active substance.
    Evaluation done after 10 days
    50 after processing. The results are shown in Tabla 2 about
    The plant growth stimulating effect was studied using the (methoxycarbonyl) cc benzenesulfonyl -N-C4 - (methoxy) - 6 - (methyl) -P, 3, 5 -triazin-2-yl-urea-β-cyclodextrin complex. As a comparative tool used a known growth regulator.
    round over 230 ° C
    Experiments A and B.
    The herbicidal and plant growth promoting effects of the complexes proposed according to the invention were tested in a greenhouse and in open ground on various useful plants and weeds.
    The following useful plants and weeds were used in experiments:
    Cultivated plants
    Triticum vulgare (autumn wheat)
    Hordeum distichon
    Beta vulgaris (sugar beet)
    Trifoliutn pratense (meadow clover)
    Zea mays (corn)
    Sorn ki
    Sinapis alba (mustard)
    Panicum cappillare (millet)
    Setaria viridis (bristle)
    Echinochloa erus-galli
    Experiments A. Experiments in a greenhouse were carried out using aqueous solutions of the complexes obtained in the examples as biologically active substances before and after the germination of plants. (Chlorine) benzene-sulfo-, -C4 - (methoxy) -b- ( methyl) - I, 3, 5 -triazin-2 -yl-urea-. known plant growth regulator.
    Tested composition containing 95 weight.h. complex of example 2 and. 5 weight.h. twin 60. Before use the concentrate was diluted with water.
    For experiments in the greenhouse, biologically active substances were used in
    35
    40
    45
    mixtures with auxiliary additives (twin) in the form of a dispersion in 1000 l / ha of water at a consumption rate (concentration) of 300 g / ha; this amount corresponds to a consumption rate of 50 g (chlorine) -benzenesulfonylJ-N - A - (meth- oxy) -6 - (methyl), 3, 5 -triazine- 2 -cyclic urea / ha).
    Known (comparative) biologically active substance H-C2 - (chlorine) - benzenesulfonyl N-C4 - (methoxy) - 6 - (methyl) -, 3, 5 -triazin-2 - yl 3 urea is used at the rate of
     Consumption 50 g / ha.
    Evaluation was performed 8–16 days after treatment. The results of the experiments in the greenhouse are presented in table 1.
    In open field conditions
    20
    20
    35
    20
    40
    20
    45
    plants containing sodium, phosphorus, potassium, magnesium and trace elements (iron, zinc, manganese, boron, copper, molybdenum and cobalt) and chelating hormones. The treatment was carried out in a greenhouse by spraying corn plants (Zea mays) 15–20 cm high. The appropriate agents were dispersed in 1000 l / ha of water. The biologically active substance proposed according to the invention was used in the application rates of 5000, 1000 and 100 g / ha, and the comparative agent in the consumption rate of 5000 g / ha.
    The evaluation was carried out on the 17th day after the treatment. The green weight of the treated plants was determined by weighing and compared with the weight of untreated plants.
    The results are presented in table 3.
    From tab. 1 and 2 it follows that the complexes proposed according to the invention, used in experiments in the greenhouse as pre-emergence herbitsvdov, are at least as active as the comparative substance, and when used as seedlings after herbicides, in most cases exceed the comparative substance.
    Experiments B. In experiments on small areas in conditions of open ground, it was established that the proposed complex (chlorine) -benzenesulfonyl - - (methoxy) - b - (methyl) -, 3 5 -triazin-2 -yl-urea with p- cyclodextrin (chlorsulfuron, example 1) in the form of an emulsion concentrate in the conditions of open ground on the 6th month has only 5% phytotoxic effect. In contrast, the phytotoxicity of (chloro) -benzenesulfonyl -M - 4 - (meth
    oxy) b - (methyl) -G, 3, 5 -triazin-2 -yl-urea (chlorsulfuron relative to Sinapsis alba (white mustard) is 65%.
    It is known that the comparative substance (chlorine) -benzenesulfonyl - - (methoxy) -b - (methyl) -, 3, 5-triazin-2 -yl-urea at a consumption rate of 20 g / ha differs in drainage (low volatility), therefore in rural areas After autumn wheat, autumn wheat must be sown again. The complex according to the invented - (chlorine) -benzenesulfonyl-N-CA - (methoxy) -b - (methyl) -, 3,





    0
    from 0
    0
    five
    5 DE.
    5 triazine-2-urea with p-cyclodextrin during the growing season of autumn wheat loses its effect due to faster destruction and / or increased hydrophilicity and rapid removal by dissolving soil from the topsoil, so after autumn wheat it is possible to sow any one - and dicotyledonous plants.
    The results are presented in Table. four.
    PRI me R 3. Prepare an herbicidal agent of the following composition,%:
    Cyclodecstrin-chlorsulfuron complex 44.0 Additives to facilitate grinding (synthetic silicic acid: Weighton, Ceo3N1, Thixosyl, - Zeophre) 15.0 Wetting agent (Na salt of aliphatic sulfonic acids, wetting agent 15); Na-salt apkylnaph-tapin-sulfonic acid (Tinovetin B) 5.0
    Dispersant (condensation product of cresol-formaldehyde: dispersant 1494) - Na ligninsulfonate, sugar free boron ZA5.0
    Filler (kaolin) 33.0 Example 4. Results of tests for herbicidal resistance of cyclodextrin complexes (Nagykova-csi, 1985).
    The treatment was carried out with a herbicidal agent, from which aqueous solutions were prepared for fine spray spraying.
    Cultivated plant: winter wheat milking. Processing: April 25, 1985. Harvesting: 15.07.85, Sampling of land: 11.09.85, Sowing soil sample: 12,11.85, Rating: 07-.01.86.
    权利要求:
    Claims (2)
    [1]
    Invention Formula
    ). A herbicidal agent comprising an active substance — a derivative of a beisol sulfomourea and auxiliary additives, characterized in that, in order to reduce the persistence of the active substance
    in the soil, as the latter it contains a complex of N- (4-methoxy-6-metip-1,3,5-triaen-2-yl) aminocarbonyl -2-chlorobvsol sulfonamide with / i-1CHCL clodextrin in a molar ratio of 1 : 2, and, as an additive, polyethylene glycol anhydrosorbitol monosterase in the following ratio of components, wt.%:
    Specified active
    substance95
    Ethoxylated
    anhydrosorbitol monostearate5
    [2]
    2. Gerbitskd means, including the active substance - a derivative of benzenesulfomine and auxiliary additives, characterized in that, in order to reduce the persistence of the active substance in the soil,
    as the latter, it contains a complex of N- (4-methoxy-6-methyl-1,3, 5-triazin-2-yl) aminocarbonyl -2-chlorobenzenesulfonamide with p, -cyclodec-strin in a molar ratio of 1: 2, and, as an additive, a carrier — a mixture of silicic acid and kaolin, a dispersant. sodium ligninsulfonate, a wetting agent based on aliphatic and aromatic sulfonic acid salts at the following ratio of components, wt.%:
    Specified active 4A
    A mixture of silicic acid and kaolin 48 Sodium ligninsulfonate 5 A wetting agent based on aliphatic and aromatic acids 3
    Note: 0 no damage; 100 complete destruction.
    Table 1
    Note: 0 no damage; 100 "complete destruction.
    Table3
    Complex - (methoxycarbonyl) -benzenesulfonyl -Y - 4- (methoxy) -6 (methyl) -1, 3,5-triazin-2 -yl-ureas with ft-cyclodextrino J Complex (methoxycarbonyl) -benzenesulfonyl 2-N - (methoxy) (methyl) - 3, 5 -triazin-2 -yl} -urea with i-cyclodecetrin Plant growth regulator (vuxal) containing sodium phosphorus, potassium, magnesium, trace elements (iron , zinc, manganese, boron, copper, molybdenum and cobalt) and chelate forming hormones
    Control

    1000
    563
    102
    100
    604
    109
    562,553
    101,100
    Table 4
    Name of herbicide Example, No. Norm Destruction of Sinapsis alba,
    consumption,% after treatment after g / ha -J,
    3 months 6 carried. | 9 carried.
    The complex, L-f2 - (chloro) -benzolsulfonip-N- (methoxy) b - (methyl) -1, 3,5 -triazin2 -ylJ-urea with / -cyclodextrin 120 100 5 O
     - (Chloro) -benzenesulfonyl N - 4- (methoxy-6 - (methyl) - Comparative1, 3,5-tripiazin-2 -ylJ-mole substance chevine 20 100 65 30
    Control Control
    (blind)
    experience-LLC
    Table5
    Treatment Dose, Subjects g / ha shadow (number)
    Triboli- Sinapis um pre-alba tense
    Control - 41 16
    Chlorsulfuron 10 37 17
    The complex of cyclodextrin - chlorsulfuron 10 45 17
    Chlorsulfuron 20 23 8
    Complex cyclodextrin chlorsulfuron 20 52 14
    Compiled by I. Yudintsev Editor A. Makovska Tehred A. Kravchuk Proofreader M. Sharoshi
    Order 6299/59 Circulation 421 Subscription
    VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nav., 4/5
    Production and publishing plant Patent, Uzhgorod, st. Gagarin, 101
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    法律状态:
    优先权:
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