EP0958295A1 - Benzthiazoles substitues 2-(2,4(1h,3h)-pyrimidindion-3-yl) - Google Patents

Benzthiazoles substitues 2-(2,4(1h,3h)-pyrimidindion-3-yl)

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Publication number
EP0958295A1
EP0958295A1 EP98906910A EP98906910A EP0958295A1 EP 0958295 A1 EP0958295 A1 EP 0958295A1 EP 98906910 A EP98906910 A EP 98906910A EP 98906910 A EP98906910 A EP 98906910A EP 0958295 A1 EP0958295 A1 EP 0958295A1
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EP
European Patent Office
Prior art keywords
alkyl
formula
pyrimidinedione
substituted
methyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98906910A
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German (de)
English (en)
Inventor
Cyrill Zagar
Elisabeth Heistracher
Robert Reinhard
Gerhard Hamprecht
Markus Menges
Olaf Menke
Peter Schäfer
Karl-Otto Westphalen
Ulf Misslitz
Helmut Walter
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BASF SE
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BASF SE
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Publication date
Application filed by BASF SE filed Critical BASF SE
Publication of EP0958295A1 publication Critical patent/EP0958295A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
    • C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
    • C07D417/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings directly linked by a ring-member-to-ring-member bond
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/74—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
    • A01N43/78—1,3-Thiazoles; Hydrogenated 1,3-thiazoles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
    • C07D277/60—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings condensed with carbocyclic rings or ring systems
    • C07D277/62—Benzothiazoles
    • C07D277/68—Benzothiazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2
    • C07D277/82—Nitrogen atoms

Definitions

  • the present invention relates to new substituted ones
  • R 1 C ⁇ -C 4 alkyl or C ⁇ -C 4 haloalkyl
  • R 2 is hydrogen or halogen
  • R 5 C ⁇ -C 6 -alkyl, C 6 haloalkyl, cyano-C ⁇ -C 4 -alkyl, C. 4 -alk- oxy-C ⁇ -C 4 alkyl, C 3 -C 6 alkenyl, C 3 -C 6 ⁇ haloalkenyl, C 3 -C 6 alkynyl, C 3 -C 8 cycloalkyl, C 3 -C 8 - Cycloalkyl -CC 4 -alkyl, phenyl, phenyl -CC 4 -alkyl,
  • R 4 and R 5 together form a tetramethylene chain
  • R 6 is hydrogen, amino or -CC.4 alkyl
  • the invention also relates to
  • Plants which contain the compounds I as active substances Process for the preparation of the compounds I and herbicidal agents and agents for the desiccation / defoliation of plants using the compounds I, process for controlling unwanted vegetation and for the desiccation / defoliation of plants with the compounds I, new intermediates of the formulas III and IV, from which the compounds I are obtainable and processes for the preparation of these intermediates.
  • WO 92/20675 Herbicidally active benzothiazoles with certain heterocycles in the 7-position are already known from WO 92/20675 and DE-A 42 41 658.
  • WO 92/20675 also refers to a possible desiccant / defoliant effect of the compounds described there.
  • WO 97/08170 describes benzthiazolylpyrimidinediones and their use as herbicides.
  • the object of the present invention was therefore to provide new benzothiazoles with better herbicidal properties.
  • the task also extends to the provision of new desiccant / defoliant connections.
  • the compounds I are also suitable for the desiccation and defoliation of parts of plants, for which crop plants such as cotton, potato, rapeseed, sunflower, soybean or field beans, in particular cotton, are suitable.
  • crops plants such as cotton, potato, rapeseed, sunflower, soybean or field beans, in particular cotton
  • agents for the desiccation and / or defoliation of plants, methods for producing these agents and methods for the desiccation and / or defoliation of plants with the compounds I have been found.
  • the compounds of the formula I can contain one or more centers of chirality and can then be present as mixtures of enantiomers or diastereomers.
  • enantiomers or diastereomers e.g., a mixture of enantiomers or diastereomers.
  • the substituted 2 - (2,4 (1H, 3H) -pyrimidinedione-3-yDbenzthiazole I can be present in the form of their agriculturally useful salts, the type of salt generally not being important.
  • the salts come from such bases and those acid addition salts into consideration in which the herbicidal activity is not adversely affected in comparison with the free compound I.
  • Particularly suitable basic salts are those of the alkali metals, preferably the sodium and potassium salts, those of the alkaline earth metals, preferably calcium and magnesium salts, those of the transition metals, preferably zinc and iron salts, and also ammonium salts in which the ammonium ion, if desired, has one to four C ⁇ - C 4 alkyl, hydroxy-C 1 -C 4 alkyl substituents and / or a phenyl or benzyl substituent, preferably diisopropylammonium, tetramethylammonium, tetrabutylammonium, trimethylbenzylammonium and trimethyl (2-hydroxyethyl) -ammonium salts, furthermore phosphonium salts, sulfonium salts such as preferably tri- (C 1 -C 4 -alkyl) sulfonium salts, and sulfoxonium salts such as preferably tri- (C 1 -C 4 -al
  • acid addition salts are primarily the hydrochlorides and bromides, sulfates, nitrates, phosphates, oxalates or the dodecylbenzenesulfonates.
  • the organic molecule parts mentioned in the definition of the substituents R 1 and R 4 to R 6 - like the meaning halogen - are collective terms for individual lists of the individual group members. All carbon chains, that is to say all alkyl, haloalkyl, cyanoalkyl and phenylalkyl -, Alkenyl, haloalkenyl and alkynyl parts can be straight-chain or branched.
  • Halogenated substituents preferably carry one to five identical or different halogen atoms. Halogen is fluorine, chlorine, bromine or iodine.
  • - C 1 -C 4 alkyl for: CH 3 , C 2 H 5 , n-propyl, 1-methylethyl, n-butyl, 1-methylpropyl, 2-methylpropyl or 1, 1-dimethylethyl;
  • a C ⁇ -C 4 alkyl radical such as overall Nannt above which is partially or fully substituted by fluorine, chlorine, bromine and / or iodine, eg CHC1, dichloromethyl, trichloromethyl, CHF, CHF 2 , CF 3 , chlorofluoromethyl, dichloro- fluoromethyl, chlorodifluoromethyl, 2-fluoroethyl, 2-chloroethyl, 2-bromoethyl, 2-iodoethyl, CH 2 -CHF 2 , CH 2 -CF 3 , 2-chloro-2-fluoroethyl, 2-chloro-2,2- difluoroethyl, 2, 2-dichloro-2-fluoroethyl, 2,2,2-trichloroethyl, C 2 F 5 , 2-fluoropropyl, 3-fluoropropyl, 2, 2-d
  • Ci-Ce-alkyl for: -C-C 4 alkyl as mentioned above, and for example n-pentyl, 1-methylbutyl, 2-methylbutyl, 3-methylbutyl, 2,2-dimethylpropyl, 1-ethylpropyl, n- Hexyl, 1, 1-dimethylpropyl, 1, 2-dimethylpropyl, 1-methylpentyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, 1, 1-dimethylbutyl, 1, 2-dimethylbutyl, 1,3-dimethylbutyl, 2, 2-dimethylbutyl, 2, 3-dimethylbutyl, 3,3-dimethylbutyl, 1-ethylbutyl, 2-ethylbutyl, 1, 1, 2-trimethylpropyl, 1, 2, 2-trimethylpropyl, 1-ethyl-l- methylpropyl or 1-ethyl-2-methylpropyl, preferably for CH 3 , C 2 Hs
  • Ci-C ⁇ -haloalkyl for: a Ci-C ⁇ -alkyl radical as mentioned above, which is partially or completely substituted by fluorine, chlorine, bromine and / or iodine, for example one of the radicals mentioned under C 1 -C 4 -haloalkyl or for 5 -Fluoro-1-pentyl, 5-chloro-1-pentyl, 5-bromo-1-pentyl, 5-iodine-1-pentyl, 5,5,5-trichloro-1-penyl, undecafluoropentyl, 6-fluorine -l-hexyl, 6-chloro-1-hexyl, 6-bromo-1-hexyl, 6-iodo-1-hexyl, 6, 6, 6 -trichloro-1-hexyl or dodecafluorohexyl;
  • Cyano-C ⁇ -C 4 alkyl for: CH 2 CN, 1-cyanoethyl, 2-cyanoethyl, 1-cyanoprop-l-yl, 2-cyanoprop-l-yl, 3-cyanoprop-1-yl, 1-cyano - but-l-yl, 2-cyanobut-l-yl, 3-cyanobut-1-yl, 4-cyanobut-l-yl, l-cyanobut-2-yl, 2-cyanobut-2-yl, 3-cyanobut -2 -yl, 4-cyano-but-2-yl, 1- (CH 2 CN) eth-1-yl, 1- (CH 2 CN) -1- (CH 3 ) -eth-1-yl or 1 - (CH 2 CN) prop-l-yl;
  • Phenyl-C ⁇ -C 4 alkyl for: benzyl, 1-phenylethyl, 2-phenylethyl, 1-phenylprop-l-yl, 2-phenylprop-l-yl, 3-phenylprop-l-yl, l-phenylbut-1 -yl, 2-phenylbut-l-yl, 3-phenylbut-l-yl, 4-phenylbut-l-yl, l-phenylbut-2-yl, 2-phenylbut-2-yl, 3-phenylbut-2 -yl, 4-phenylbut-2-yl, 1- (phenylmethyl) -eth-l-yl, l- (phenylmethyl) -1- (methyl) -eth-l-yl or 1- (phenylmethyl) prop -1-yl, preferably for benzyl or 2-phenylethyl; C 1 -C 4 -alkoxy-C 4 -alkyl for: by C
  • C 3 -C 6 alkenyl for: prop-1-en-l-yl, allyl, 1-methylethenyl, 1-buten-l-yl, l-buten-2-yl, l-buten-3-yl, 2 -Butene-1 -yl, 1-methyl-prop-1-en-1-yl, 2-methyl-prop-1-en-1-yl, 1-methyl-prop-2-en-1-yl, 2 -Methyl-prop-2-en-l-yl, n-penten-1-yl, n-penten-2-yl, n-penten-3-yl, n-penten-4-yl, 1-methyl-but - 1-en-l-yl, 2-methyl-but-l-en-l-yl, 3-methyl-but-l-en-l-yl, l-methyl-but-2-en-l-yl , 2-methyl-but-2-en-l-yl, 3-methyl-but-2-en-l-yl,
  • C 3 -C 6 alkynyl for: prop-1-in-l-yl, prop-2-in-l-yl, n-but-1-in-1-yl, n-but-l-in-3 -yl, n-but-l-in-4-yl, n-but-2-in-l-yl, n-pent-1-in-l-yl, n-pent-l-in-3-yl , n-pent-1-in-4-yl, n-pent-1-in-5-yl, n-pent-2-in-1-yl, n-pent-2-in-4-yl, n Pent-2-in-5-yl, 3-methyl-but-l-in-3-yl, 3-methyl-but-l-in-4-yl, n-hex-1-in-l-yl , n-hex-1-in-3-yl, n-hex-1-in-4-yl, n-hex-1-in-5
  • cycloalkyl for: cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl or cyclooctyl;
  • R 1 -C-C 4 haloalkyl especially trifluoromethyl
  • R 2 is hydrogen, fluorine or chlorine, especially fluorine
  • R 4 is methyl
  • C 3 -C 6 alkynyl in particular C 1 -C 4 alkyl, 2-cyanoethyl, allyl or propargyl,
  • R 4 and R 5 together form a tetramethylene chain
  • R 6 -C 4 alkyl especially methyl
  • the particularly preferred embodiments of the 2-aminobenzothiazoles III and the 2, 7-diaminobenzothiazoles IV with respect to the substituents R 1 to R 6 correspond to those of the 2- (2,4 (1H, 3H) -pyrimidinedione-3-yl) benzothiazoles I .
  • L represents a common leaving group such as halogen, preferably chlorine, bromine or iodine, (halogen) alkylsulfonyloxy, preferably methylsulfonyloxy or trifluoromethylsulfonyloxy, arylsulfonyloxy, preferably toluenesulfonyloxy, and alkoxysulfonyloxy, preferably methoxysulfonyloxy or ethoxysulfonyloxy.
  • halogen preferably chlorine, bromine or iodine
  • alkylsulfonyloxy preferably methylsulfonyloxy or trifluoromethylsulfonyloxy
  • arylsulfonyloxy preferably toluenesulfonyloxy
  • alkoxysulfonyloxy preferably methoxysulfonyloxy or ethoxysulfonyloxy.
  • an inert organic solvent for example in a protic solvent such as the lower alcohols, preferably in methanol or ethanol, if desired in a mixture with water, or in an aprotic solvent, e.g. in an aliphatic or cyclic ether such as methyl tert.
  • Carboxylic acid esters such as ethyl acetate, or in a halogenated aliphatic or aromatic hydrocarbon such as dichloromethane, dichloroethane, chlorobenzene and the dichlorobenzenes.
  • a base both inorganic bases, for example carbonates such as sodium carbonate and potassium carbonate, hydrogen carbonates such as sodium and potassium hydrogen carbonate, or alkali metal hydrides such as sodium hydride and potassium hydride, and organic bases, for example amines such as triethylamine, pyridine and N, N -Diethyl- aniline, or alkali metal alcoholates such as sodium methoxide, sodium ethanolate and potassium tert. -butanolate are suitable.
  • reaction temperature is from 0 ° C to the boiling point of the reaction mixture, in particular from 0 to 60 ° C.
  • 2,4-dinitrophenoxyamine has proven particularly useful as an amination reagent, however, e.g. hydroxylamine-O-sulfonic acid (HOSA) can also be used, which is already known from the literature as an amination reagent (see, for example, E. Hofer et al., Synthesis 1983, 466; W. Friedrichsen et al., Heterocycles 2_Q_ (1983) 1271 ; H. Hart et al., Tetrahedron
  • HOSA hydroxylamine-O-sulfonic acid
  • the amination can be carried out in a manner known per se (see, for example, T. Sheradsky, Tetrahedron Lett. 1968, 1909; MP Wentland et al., J. Med. Chem. 21_ (1984) 1103 and in particular EP-A 240 194, EP -A 476 697 and EP-A 517 181, where the amination of uracil is taught).
  • the reaction is normally carried out in a polar solvent, for example in dimethylformamide, N-methylpyrrolidone, dimethyl sulfoxide or in ethyl acetate, which has hitherto proven to be particularly suitable.
  • Suitable bases are, for example, alkali metal carbonates such as potassium carbonate, alkali metal alcoholates such as sodium methylate and potassium tert. -butanolate or alkali metal hydrides such as sodium hydride.
  • the amount of base and aminating agent is preferably 0.5 to 2 times the molar amount, based on the amount of starting compound.
  • an essentially anhydrous aprotic organic solvent or diluent for example an aliphatic or cyclic ether such as diethyl ether, 1, 2-dimethane hane, tetrahydrofuran and dioxane, an aliphatic or aromatic hydrocarbon such as n-hexane, benzene , Toluene and o-, m-, p-xylene, a halogenated, aliphatic hydrocarbon such as methylene chloride, chloroform, carbon tetrachloride, 1, 2-dichloroethane and chlorobenzene, an aprotic, polar solvent such as dimethylformamide, hexamethylphosphoric triamide and dimethyl sulfoxide, or a mixture from the mentioned solvents.
  • an essentially anhydrous aprotic organic solvent or diluent for example an aliphatic or cyclic ether such as diethyl ether, 1, 2-dimethane
  • a metal hydride base such as sodium and potassium hydride or an organic tertiary base such as triethylamine and pyridine, where the organic base can simultaneously serve as a solvent.
  • the starting materials are expediently used in stoichiometric amounts or one works with a slight excess of one or the other component, up to about 10 mol%. You work without Solvents in the presence of an organic base, this is in a large excess.
  • the reaction temperature is preferably (-80) to 50 ° C, in particular (-60) to 30 ° C.
  • Suitable solvents / diluents are e.g. Hydrocarbons such as toluene and n-hexane, halogenated hydrocarbons such as dichloromethane, ethers such as tetrahydrofuran or aprotic solvents such as dimethylformamide, acetonitrile and dirnethyl sulfoxide.
  • Hydrocarbons such as toluene and n-hexane
  • halogenated hydrocarbons such as dichloromethane
  • ethers such as tetrahydrofuran
  • aprotic solvents such as dimethylformamide, acetonitrile and dirnethyl sulfoxide.
  • Bases which can be used are primarily the alkali metal acetates, bicarbonates, carbonates, hydroxides or tertiary amines such as triethylamine and pyridine.
  • the reaction is generally carried out between the melting and boiling point of the reaction mixture, preferably at 0 to 150 ° C.
  • the reaction is expediently carried out in an inert solvent, for example in an ether such as diethyl ether, methyl tert. -butyl ether, dimethoxyethane, diethylene glycol dimethyl ether, tetrahydrofuran and dioxane, a ketone such as acetone, diethyl ketone, ethyl methyl ketone and cyclohexanone, a dipolar aprotic solvent such as acetonitrile, dimethylformamide, N-methylpyrrolidone and dimethyl sulfoxide and an ethanolic, a protic solvent such as methanol, a protic solvent such as methanol, if desired, halogenated hydrocarbon such as benzene, chlorobenzene and 1,2-dichlorobenzene, a heteroaromatic solvent such as pyridine and quinoline or in a mixture of such solvents.
  • an ether such as diethyl ether,
  • bases e.g. the hydroxides, hydrides, alkoxides, carbonates or hydrogen carbonates of alkali metal and alkaline earth metal cations, tertiary aliphatic amines such as triethylamine, N-methylmorpholine and N-ethyl-N, N-diisopropylamine, bi- and tricyclic amines such as diazabicycloundecane (DBU) and diazabicyclooctane (DABCO), or aromatic nitrogen bases such as pyridine, 4-dimethylaminopyridine and quinoline.
  • DBU diazabicycloundecane
  • DABCO diazabicyclooctane
  • aromatic nitrogen bases such as pyridine, 4-dimethylaminopyridine and quinoline.
  • Preferred bases are sodium hydride, sodium hydroxide, sodium carbonate, potassium carbonate, sodium methylate, sodium ethylate and potassium tert. -butylate.
  • the starting materials are usually used in approximately stoichiometric amounts, but an excess of one or the other component can also be used with regard to the process leadership or the most complete possible implementation of the starting compound V may be advantageous.
  • amine HN (R 4 , R 5 ) is also used as the base, a larger excess is recommended, up to about 30 times the molar amount, based on the amount of V.
  • the reaction can be carried out at temperatures from 0 ° C. to the reflux temperature of the particular solvent (mixture).
  • DE-A 19 532 048 are e.g. known from the older DE-A 19 532 048, or they can be obtained from compounds of the formula VII by oxidation (for example by one of the processes specified in DE-A 19 532 048)
  • the concentration of the starting materials in the solvent is normally 0.1 to 5.0 mol / 1.
  • reaction mixtures are generally worked up in a manner known per se. Unless stated otherwise in the processes described above, the result is obtained
  • Valuable products e.g. after dilution of the reaction solution with water by filtration, crystallization or solvent extraction, or by removing the solvent, distributing the residue in a mixture of water and a suitable organic solvent and working up the organic phase onto the product.
  • the substituted 2 - (2,4 (IH, 3H) -pyrimidinedione-3-yDbenzthiazole I can be obtained in the preparation as isomer mixtures, which, however, if desired according to the usual methods such as crystallization or chromatography, also on an optically active adsorbate, in the largely pure isomers are separated can. Pure optically active isomers can advantageously be prepared from corresponding optically active starting products.
  • Agricultural salts of the compounds I can be formed by reaction with a base of the corresponding cation, preferably an alkali metal hydroxide or hydride, or by reaction with an acid of the corresponding anion, preferably hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid or nitric acid.
  • a base of the corresponding cation preferably an alkali metal hydroxide or hydride
  • an acid of the corresponding anion preferably hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid or nitric acid.
  • Salts of I can also be prepared in a conventional manner by salting the corresponding alkali metal salt, as can ammonium, phosphonium, sulfonium and sulfoxonium salts using ammonia, phosphonium, sulfonium or sulfoxonium hydroxides.
  • the compounds I and their agriculturally useful salts are suitable - both as isomer mixtures and in the form of the pure isomers - as herbicides.
  • the herbicidal compositions containing I control vegetation very well on non-cultivated areas, particularly when high amounts are applied. In crops such as wheat, rice, corn, soybeans and cotton, they act against weeds and grass weeds without significantly damaging the crop plants. This effect occurs especially at low application rates.
  • the compounds I or herbicidal compositions comprising them can also be used in a further number of crop plants for eliminating undesired plants.
  • the following crops are considered, for example:
  • the compounds I can also be used in crops which are tolerant to the action of herbicides by breeding, including genetic engineering methods.
  • substituted 2- (2,4 (1H, 3H) -pyrimidinedione-3-yDbenzthiazole I are also suitable for the desiccation and / or defoliation of plants.
  • desiccants are particularly suitable for drying out the above-ground parts of crops such as potatoes, rapeseed, sunflower and soybeans. This enables a fully mechanical harvesting of these important crops.
  • the compounds I or the compositions comprising them can be sprayed, for example in the form of directly sprayable aqueous solutions, powders, suspensions, including high-strength aqueous, oily or other suspensions or dispersions, emulsions, oil dispersions, pastes, dusts, sprays or granules. Nebulization, dusting, scattering or pouring can be used.
  • the application forms depend on the purposes; in any case, they should ensure the finest possible distribution of the active compounds according to the invention.
  • mineral oil fractions of medium to high boiling point such as kerosene and diesel oil, also coal tar oils and oils of vegetable or animal origin, aliphatic, cyclic and aromatic hydrocarbons, for example paraffins, tetrahydronaphthalene, alkylated naphthalenes and their derivatives , alkylated benzenes and their derivatives, alcohols such as methanol, ethanol, propanol, butanol and cyclohexanol, ketones such as cyclohexanone, strongly polar solvents, for example amines such as N-methylpyrrolidone and water.
  • mineral oil fractions of medium to high boiling point such as kerosene and diesel oil, also coal tar oils and oils of vegetable or animal origin, aliphatic, cyclic and aromatic hydrocarbons, for example paraffins, tetrahydronaphthalene, alkylated naphthalenes and their derivatives , alkylated benzene
  • Aqueous use forms can be prepared from emulsion concentrates, Sus pensions, pastes, wettable powders or water-dispersible granules by adding water.
  • emulsions, pastes or oil dispersions the substances as such or dissolved in an oil or solvent can be homogenized in water by means of wetting agents, adhesives, dispersants or emulsifiers.
  • concentrates consisting of an active substance, wetting agent, tackifier, dispersant or emulsifier and possibly solvent or oil, which are suitable for dilution with water.
  • surface-active substances come e.g. the alkali, alkaline earth, ammonium salts of aromatic sulfonic acids such as lignin, phenol, naphthalene and dibutylnaphthalenesulfonic acid, and of fatty acids, alkyl and alkylarylsulfonates, alkyl, lauryl ether and fatty alcohol sulfates, and salts of sulfated hexa-, hepta- and octadecanols and of fatty alcohol glycol ether, condensation products of sulfonated naphthalene and its derivatives with formaldehyde, condensation products of naphthalene or naphthalenesulfonic acids with phenol and formaldehyde, polyoxyethylene octylphenol ether, ethoxylated isooctyl, octyl or nonylphenol, alkylphenyl, aryl glycol
  • Powders, materials for broadcasting and dusts can be prepared by mixing or grinding the active substances together with a solid carrier.
  • Granules for example coated granules, impregnated granules and homogeneous granules, can be prepared by binding the active ingredients to solid carriers.
  • Solid carriers are mineral soils such as silicas, silica gels, silicates, talc, kaolin, limestone, lime, chalk, bolus, loess, clay, dolomite and diatomaceous earth, calcium and magnesium sulfate, magnesium oxide, ground plastics, fertilizers such as ammonium sulfate, ammonium phosphate and ammonium nitrate, ureas and vegetable products such as flour, tree bark, wood and nutshell flour, cellulose powder or other solid carriers.
  • the concentrations of the active ingredients I in the ready-to-use preparations can be varied over a wide range.
  • the formulations contain about 0.001 to 98% by weight, preferably 0.01 to 95% by weight, of at least one active ingredient.
  • the active ingredients I are used in a purity of 90% to 100%, preferably 95% to 100% (according to the NMR spectrum).
  • the active ingredients I or the herbicidal compositions can be applied pre- or post-emergence. If the active ingredients are less compatible with certain crop plants, application techniques can be used in which the herbicidal compositions are sprayed with the aid of sprayers in such a way that the leaves of the sensitive crop plants are not hit as far as possible, while the active ingredients are applied to the leaves of undesirable plants growing below them or the uncovered floor area (post-directed, lay-by).
  • the application rates of active ingredient I are 0.001 to 3.0, preferably 0.01 to 1.0 kg / ha of active substance (as), depending on the control target, season, target plants and growth stage.
  • the substituted 2 - (2, 4 (IH, 3H) - pyrimidinedione-3-yDbenzthiazole I can be mixed with numerous representatives of other herbicidal or growth-regulating active ingredient groups and applied together.
  • mixing partner 1, 2, 4-thiadiazoles, 1, 3, 4-thiadiazoles, amides, aminophosphoric acid and their derivatives, aminotriazoles, anilides, aryloxy- / heteroaryloxyalkanoic acids and their derivatives, benzoic acid and their derivatives, benzothiadiazinones, 2- (hetaroyl / aroyl) -1, 3 -cyclohexanediones, heteroaryl aryl ketones, benzylisoxazolidinones, meta-CF 3 ⁇ phenyl derivatives, carbamates, quinoline carbonic acid and its derivatives, chloroacetanilides, cyclohexane-1, 3-dione derivatives, diazines, dichloropropionic acid and its derivatives, di - hydrobenzofurans, dihydrofuran-3-ones, dinitroanilines, dinitrophenols, diphenyl ethers, dipyridyls, halocarbox
  • Pyridinecarboxylic acid and its derivatives pyrimidyl ethers, sulfonamides, sulfonylureas, triazines, triazinones, triazolinones, triazolecarboxamides and uracils.
  • the crude product was dissolved in dichloromethane, after which the solution obtained was filtered through a bed of silica gel. After concentration, 5 g of product of value with mp 112-113 ° C. were obtained.
  • Plastic flower pots with loamy sand with about 3.0% humus as substrate served as culture vessels.
  • the seeds of the test plants were sown separately according to species.
  • the active ingredients suspended or emulsified in water were applied directly after sowing using finely distributing nozzles.
  • the tubes were lightly sprinkled to promote germination and growth, and then covered with clear plastic covers until the plants had grown. This cover causes the test plants to germinate evenly, provided that this has not been impaired by the active ingredients.
  • the application rate for the pre-emergence treatment was 0.0625 or 0.0312 kg / ha a.S. (active substance).
  • test plants For the purpose of post-emergence treatment, the test plants, depending on the growth habit, were first grown to a height of 3 to 15 cm and only then treated with the active ingredients suspended or emulsified in water. The test plants were either sown directly and grown in the same containers, or they were first grown separately as seedlings and transplanted into the test containers a few days before the treatment.
  • the plants were kept at temperatures of 10 - 25 ° C or 20 - 35 ° C depending on the species.
  • the trial period lasted 2 to 4 weeks. During this time, the plants were cared for, and their response to each treatment was evaluated.
  • Evaluation was carried out on a scale from 0 to 100. 100 means no emergence of the plants or complete destruction of at least the aerial parts and 0 means no damage or normal growth.
  • the plants used in the greenhouse experiments are composed of the following types:
  • the young cotton plants were dripping wet with aqueous preparations of the active ingredients up (with the addition of 0.15 wt .-% of the fatty alcohol alkoxylate Plurafac LF 700 ® 1 ', based on the spray - mixture) treated.
  • the amount of water applied was the equivalent of 1000 l / ha. After 13 days, the number of leaves dropped and the degree of defoliation in% were determined.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dentistry (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Agronomy & Crop Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Thiazole And Isothizaole Compounds (AREA)

Abstract

La présente invention porte sur des benzthiazoles de la formule (I), substitués 2-(2,4(1H,3H)-pyrimidindion-3-yl, et sur leurs sels, où R1 = C1-C4-alkyle, C1-C4-halogénalkyle; R2 = H, halogène; R3 = halogène; R4 = C1-C6-alkyle; R5 = C1-C6-alkyle, C1-C6-alkényle, C3-C6-halogénalkényle, C3-C6-alkinyle, C3-C8-Cycloalkyle, C3-C4-alkyle, phényle, phényle-C1-C4-alkyle, ou R4 + R5 ensemble = chaîne tétraméthylène; R6 = H, NH¿2?, C1-C4-alkyle. Applications: comme herbicides et pour la dessication/défoliation de végétaux.
EP98906910A 1997-02-04 1998-02-04 Benzthiazoles substitues 2-(2,4(1h,3h)-pyrimidindion-3-yl) Withdrawn EP0958295A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19704134 1997-02-04
DE19704134 1997-02-04
PCT/EP1998/000581 WO1998033796A1 (fr) 1997-02-04 1998-02-04 Benzthiazoles substitues 2-(2,4(1h,3h)-pyrimidindion-3-yl)

Publications (1)

Publication Number Publication Date
EP0958295A1 true EP0958295A1 (fr) 1999-11-24

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EP98906910A Withdrawn EP0958295A1 (fr) 1997-02-04 1998-02-04 Benzthiazoles substitues 2-(2,4(1h,3h)-pyrimidindion-3-yl)

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Country Link
EP (1) EP0958295A1 (fr)
JP (1) JP2001511140A (fr)
CA (1) CA2279644A1 (fr)
WO (1) WO1998033796A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE19755926A1 (de) * 1997-12-17 1999-06-24 Basf Ag Herbizide 3-(Benzazol-4-yl)pyrimidindion-Derivate
JP2002529481A (ja) * 1998-11-16 2002-09-10 ビーエーエスエフ アクチェンゲゼルシャフト 除草剤３−［ベンゾ（オキサ／チア）ゾール−７−イル］−１ｈ−ピリミジン−２，４−ジオン類
CN105294671B (zh) * 2014-06-10 2018-03-20 华中师范大学 一种嘧啶二酮类化合物及其应用

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JP3064374B2 (ja) * 1989-10-02 2000-07-12 住友化学工業株式会社 ウラシル誘導体、その製造法およびそれを有効成分とする除草剤
DE4117508A1 (de) * 1991-05-24 1992-11-26 Schering Ag Substituierte benzthiazolderivate, verfahren zu ihrer herstellung und ihre verwendung als mittel mit herbizider wirkung
US5753595A (en) * 1995-08-31 1998-05-19 Fmc Corporation Herbicidal 3-(substituted benzoxazol-7-yl) and 3-(Substituted benzothiazol-7-yl)-1-substituted-6-trifluoromethyl-2 4-(1h 3h)pyrimidinediones

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Title
See references of WO9833796A1 *

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WO1998033796A1 (fr) 1998-08-06
CA2279644A1 (fr) 1998-08-06
JP2001511140A (ja) 2001-08-07

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