WO2001079182A1 - 2-phenyl-2h-pyridazin-3-one - Google Patents
2-phenyl-2h-pyridazin-3-one Download PDFInfo
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- WO2001079182A1 WO2001079182A1 PCT/EP2001/004213 EP0104213W WO0179182A1 WO 2001079182 A1 WO2001079182 A1 WO 2001079182A1 EP 0104213 W EP0104213 W EP 0104213W WO 0179182 A1 WO0179182 A1 WO 0179182A1
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- aminocarbonyl
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- 0 CC1=C(C(F)(F)F)C=N*(c(cc(C=C(C(*)=*)Cl)c(Cl)c2)c2F)C1=O Chemical compound CC1=C(C(F)(F)F)C=N*(c(cc(C=C(C(*)=*)Cl)c(Cl)c2)c2F)C1=O 0.000 description 4
Classifications
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- 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
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/58—1,2-Diazines; Hydrogenated 1,2-diazines
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D237/00—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings
- C07D237/02—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings
- C07D237/06—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D237/10—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members 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 to ring carbon atoms
- C07D237/14—Oxygen atoms
Definitions
- the present invention relates to 2-phenyl-2H-pyridazin-3-one and the use thereof as herbicides and / or for the desiccation and / or defoliation of plants.
- 2H-Pyridazin-3-ones which have a phenyl substituent in the 2-position of the pyridazinone ring are variously described as herbicides in the prior art, for example in WO 96/39392, WO 97/07104, DE 19754348 and WO 99/52878.
- the compounds described therein generally have a substituent, for example a halogen atom, on the phenyl ring in the 2- and / or the 4-position, based on the pyridazinonyl radical.
- a side chain can be provided in the 5-position of the phenyl ring.
- compounds are proposed which have an ethylenically unsaturated side chain derived from propenoic acid derivatives.
- the compounds described there have no ⁇ -halogen atom in the ethylenically unsaturated side chain.
- the compounds of the prior art are often unsatisfactory in terms of their herbicidal activity and their selectivity.
- the object of the present invention was therefore to provide compounds with high herbicidal activity and selectivity.
- R 1 is hydrogen or C 1 -C 4 alkyl
- R 2 is chlorine, OR 3 or NR 4 R 5 , wherein
- R 3 , R 4 independently of one another are hydrogen, C 1 -C 4 -alkyl, C 1 -C 6 -haloalkyl, hydroxy-C 1 -C 4 -alkyl,
- Aminocarbonyl-C 1 -C 4 -alkyl (-C-C 4 -alkyl) aminocarbonyl-C ⁇ -C -alkyl, di- (C ⁇ -C -alkyl) aminocarbonyl-C ⁇ -C 4 -alkyl, C ⁇ -C -haloalkoxy- C 1 -C 4 alkyl, C 1 -C 4 alkoxy-C 1 -C 4 alkoxy C 1 -C 4 alkyl,
- R 5 is hydrogen, -CC 4 alkyl, C 1 -C 4 alkoxy, C 3 -C 6 alkenyl, C 3 -C 4 alkenyloxy, C 3 -C 6 alkynyl, C 3 -C 4 alkynyloxy , C 3 -C 8 cycloalkyl, C 3 -C 8 cycloalkyl -CC 4 -alkyl, C 3 -C 8 -cycloalkyl -CC 4 -alkoxy;
- R 4 and R 5 together with the nitrogen atom to which they are attached, can mean a preferably saturated or unsaturated 3, 4, 5, 6 or 7-membered heterocyclic radical, the 1 or 2 further, preferably non-adjacent heteroatoms, selected from Oxygen and sulfur, and / or one or two imino or C 1 -C 4 alkylimino groups as ring members and / or one or two substituents selected from halogen, C ⁇ -C 4 alkyl and C 1 -C 4 alkoxy, may have;
- Z can also mean a group NR 6 if R 2 stands for a group OR 7 , in which
- R 7 C ⁇ -C 4 -alkyl, C 4 haloalkyl
- the invention further relates to
- Herbicides and / or for the desiccation and / or defoliation of plants Herbicidal agents and agents for the desiccation and / or defoliation of plants which contain the compounds I and / or their salts as active substances, processes for controlling unwanted vegetation (harmful plants) and for the desiccation and / or defoliation of plants with the compounds I and / or their salts.
- the invention also relates to diazinyl cinnamic acid compounds of the general formula II
- R 2 , R 3 , X, Y and Z have the meanings mentioned above.
- Preferred among these are compounds II in which Z is oxygen and R 2 is a group OR 3 , where R 3 has the meanings given above, preferably different from hydrogen, in particular the meanings given below as preferred.
- the compounds of the formula I can be present as E or Z isomers, based on the relative arrangement of the phenyl ring and halogen atom X.
- the compounds I according to the invention comprise both the pure E or Z isomers and their mixtures.
- the Z isomer is preferred, both in pure form and in the form of mixtures which contain the Z isomer in enriched form.
- the compounds of the formula I can have one or more centers of chirality in the substituents and are then present as enantiomer or diastereomer mixtures.
- the invention relates both to the pure enantiomers or diastereomers and to their mixtures.
- the salts of those cations or the acid addition salts of those acids whose cations or anions are the most suitable do not adversely affect the herbicidal activity of the compounds I.
- the ions of the alkali metals preferably sodium and potassium
- the alkaline earth metals preferably calcium, magnesium and barium
- the transition metals preferably manganese, copper, zinc and iron, as well as the ammonium ion, if desired one to four C ⁇ -C 4 alkyl substituents and / or a phenyl or benzyl substituent, preferably diisopropylammonium, tetramethylammonium, tetrabutylammonium, trimethylbenzylammonium, furthermore phosphonium ions, sulfonium ions, preferably
- Anions of usable acid addition salts are primarily chloride, bromide, fluoride, hydrogen sulfate, sulfate, dihydrogen phosphate, hydrogen phosphate, phosphate, nitrate, hydrogen carbonate, carbonate, hexafluorosilicate, hexafluorophosphate, benzoate, and the anions of C ⁇ -C 4 -alkanoic acids, preferably Formate, acetate, propionate and butyrate. They can be formed by reacting I with an acid of the corresponding anion, preferably hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid or nitric acid.
- the organic molecule parts mentioned in the definition of the substituents R 1 - R 7 or as residues on cycloalkyl rings or on Z represent - like the meaning halogen - collective terms for individual lists of the individual group members.
- All carbon chains that is to say all alkyl, haloalkyl, cyanoalkyl -, Hydroxyalkyl, aminoalkyl, cycloalkylalkyl, alkoxy, haloalkoxy, alkylthio, alkylsulfinyl, alkylsulfonyl, haloalkylsulfonyl, alkenyl and alkynyl groups and corresponding group parts in larger groups such as alkoxyalkyl, (di) alkylaminocarbonyl, alkoxycarbonyl, cycloalkoxyalkyl , Alkoxycarbonylalkyl etc.
- Halogenated substituents preferably carry one, two, three, four or five identical or different halogen atoms.
- Halogen is fluorine, chlorine, bromine or iodine, preferably fluorine or chlorine.
- -C 1 -C 4 alkyl for: CH 3 , C 2 H 5 , n-propyl, CH (CH 3 ) 2 , n-butyl, CH (CH 3 ) -C 2 H 5 , CH 2 -CH (CH 3 ) 2 and C (CH 3 ) 3 ;
- - C 1 -C 4 haloalkyl for: a C 1 -C 4 -alkyl radical as mentioned above, which is partially or completely substituted by fluorine, chlorine, bromine and / or iodine, that is, for.
- 2-chloroethyl 2-bromoethyl, 2-iodoethyl, 2,2-difluoroethyl, 2,2, 2-trifluoroethyl, 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-difluoropropyl, 2,3-difluoropropyl, 2-chloropropyl,
- - Hydroxy -CC 4 alkyl for: z.
- B Hydroxymethy1, 2-Hydroxyeth-1-yl, 2-Hydroxy-prop-l-yl, 3-Hydroxy-prop-l-yl, 1-Hydroxy-prop-2-yl, 2-Hydroxy-but-l- yl, 3-hydroxy-but-l-yl, 4-hydroxy-but-l-yl, l-hydroxy-but-2-yl, l-hydroxy-but-3-yl, 2-hydroxy-but-3- yl, l-hydroxy-2-methyl-prop-3-yl, 2-hydroxy-2-methyl-prop-3-yl or 2-hydroxymethyl-prop-2-yl, especially for
- 2-cyanoeth-l-yl 1-cyanoprop-l-yl, 2-cyanoprop-l-yl, 3-cyano-prop-1-yl, l-cyanoprop-2-yl, 2-cyanoprop-2-yl, 1-cyanobut-1-yl, 2-cyanobut-l-yl, 3-cyanobut-l-yl, 4-cyanobut-l-yl, 1-cya-nobut-2-yl, 2-cyanobut-2-yl, l-cyanobut-3-yl, 2-cyanobut-3-yl, l-cyano-2-methyl-prop-3-yl, 2-cyano-2-methyl-prop-3-yl, 3-cyano-2- methyl-prop-3-yl or 2-cyanomethyl-prop-2-yl, especially for cyanomethyl or 2-cyanoethyl;
- - Amino -CC-alkyl for: CH 2 NH 2 , 1-aminoethyl, 2-aminoethyl, 1-aminoprop-l-yl, 2-aminoprop-l-yl, 3-aminoprop-l-yl, 1-amino - but-l-yl, 2-aminobut-l-yl, 3-aminobut-l-yl, 4-aminobut-l-yl, l-aminobut-2-yl, 2-aminobut-2-yl, 3-aminobut -2-yl, 4-amino-but-2-yl, l- (CH 2 NH 2) eth-l-yl, 1- (CH2 NH2) -1- (CH3) eth-l-yl or l- (CH 2 NH 2 ) prop-l-yl;
- - C 1 -C 4 -Alkylamino -CC 4 -alkyl for: by -CC 4 -alkylamino such as H 3 C-NH-, H 5 C 2 -NH-, n-propyl-NH-, 1-methylethyl -NH-, n-butyl-NH-, 1-methylpropyl-NH-, 2-methylpropyl-NH- and 1,1-dimethylethyl-NH, substituted C ⁇ -C alkyl, so for example for CH 2 CH 2 - NH-CH 3 , CH 2 CH 2 -NH-C 2 H 5 , CH 2 CH 2 -NH-CH 2 CH 2 CH 3
- Di (-C 1 -C 4 ) alkyl-C 1 -C 4 alkyl for: C 1 -C 4 alkyl substituted by di (C 1 -C 4 alkyl) amino, that is, for.
- CH 2 N (CH 3 ) 2 , CH 2 N (C 2 H 5 ) 2 N, N-dipropylaminomethyl, N, N-Di [CH (CH 3 ) 2 ] aminomethyl, N, N- Dibutylaminomethyl, N, N-Di- (1-methylpropyl) aminomethyl, N, N-Di (2-methylpropyl) aminomethy1,, N-Di [C (CH 3 ) 3 ] aminomethy1, N-Ethy1-N-methylaminomethyl , N-methyl-N-prop laminomethyl, N-methyl-N- [CH (CH 3 ) 2 ] aminomethyl, N-butyl-N-methylaminomethyl, N-methyl-N- (1-methylpropyl)
- C ⁇ -C4-haloalkoxy-C ⁇ -C 4 alkyl by C ⁇ -C 4 haloalkoxy, such as OCH 2 F, OCHF 2, OCF 3, OCH 2 Cl, 0CH (C1) 2, 0C (C1) 3, Chlorofluoromethoxy, dichlorofluoromethoxy, chlorodifluoromethoxy, 2-fluoroethoxy, 2-chloroethoxy, 2-bromoethoxy, 2-iodoethoxy, 2, 2-difluoroethoxy, 2, 2, 2-trifluoroethoxy, 2-chloro-2-fluoroethoxy, 2-chloro 2,2-difluoroethoxy, 2,2-dichloro-2-fluoroethox, 2,2,2-trichloroethoxy, OC 2 F 5 , 2-fluoropropoxy, 3-fluoropropoxy, 2,2-difluoropropoxy, 2,3-difluoropropoxy, 2 - chloropropoxy,
- - Hydroxycarbonyl -CC 4 alkoxy -CC 4 -alkyl C 1 -C 4 -alkoxy-C 4 -alkyl substituted by COOH in the alkoxy part, that is to say for -CH 2 -0-CH 2 COOH, - CH 2 CH 2 -0-CH 2 COOH, -CH 2 CH 2 CH 2 -0-CH 2 COOH, -CH 2 CH (CH 3 ) -0-CH 2 COOH, -CH (CH 3 ) CH 2 -0 -CH 2 COOH, -CH 2 -0-CH 2 CH 2 COOH, -CH 2 CH 2 -0-CH 2 CH 2 COOH, -CH 2 CH 2 CH 2 -0-CH 2 CH 2 COOH, -CH 2 CH 2 CH 2 -0-CH 2 CH 2 COOH, -CH 2 CH 2 CH 2 -0-CH 2 CH 2 COOH, -CH 2 CH 2 CH 2 -0-CH 2 CH 2 COOH, -CH 2 CH 2 CH 2 -0-CH 2
- C 1 -C 4 alkylthio-C 4 -C 4 alkyl for: CH 2 -SCH 3 , CH 2 -SC 2 H 5 , n-propylt-hiomethyl, CH 2 -SCH (CH 3 ) 2 , n-butylthiomethyl, ( 1-methylpropylthio) methyl, (2-methylpropylthio) methyl, CH 2 -SC (CH 3 ) 3 , 2- (methylthio) ethyl, 2- (ethylthio) ethyl, 2- (n-propylthio) ethyl , 2- (1-methylethylthio) ethyl, 2- (n-butylthio) ethyl, 2- (1-methylpropylthio) ethyl, 2- (2-methylpropylthio) ethyl, 2- (l, l-dimethylethylthio) ethyl, 2nd - (Methy
- _ -C 4 alkylsulfinyl-C 1 -C 4 alkyl for a by a C ! -C 4 -Alkylsulfinylrest such as SO-CH 3 , SO-C 2 H 5 , SO-CH 2 -C 2 H 5 , SO-CH (CH 3 ) 2 , SO- (nC 4 H 9 ), SO- CH (CH 3 ) -C 2 H 5 , SO-CH 2 -CH (CH 3 ) 2 or SO-C (CH 3 ) 3 substituted C 1 -C 4 -alkyl, for example for CH 2 SO-CH 3 , CH 2 SO-C 2 H 5 , CH 2 SO-CH 2 -C 2 H 5 , CH 2 SO-CH (CH 3 ), CH 2 SO-CH 2 CH 2 CH 2 CH 3 , CH 2 SO-CH (CH 3 ) -C 2 H 5 , CH 2 SO-CH 2 -CH (CH 3 ) 2 , CH 2 SO-CH 2
- C 1 -C 4 alkylsulfonyl C 1 -C 4 alkyl for a through a C ⁇ -C 4 alkyl sulfonyl radical such as S0 2 -CH 3 , S0 2 -C 2 H 5 , S0 -CH 2 -C 2 H 5 ,
- CH 2 CH 2 S0 -C 2 H 5 CH 2 CH 2 S0 -CH 2 -C 2 H 5 , CH 2 CH 2 S0 2 -CH (CH 3 ) 2 , CH 2 CH 2 S0 2 -CH 2 CH 2 CH 2 CH 3 , CH 2 CH 2 S0 2 -CH (CH 3 ) -C 2 H 5 , CH 2 CH 2 S0 2 -CH 2 -CH (CH 3 ) 2 ;
- C -C 4 alkylamino) carbonyl-C ⁇ -C 4 -alkyl for: by (C ⁇ -C 4 -alkylamino) carbonyl such as CO-NH-CH 3 , CO-NH-C 2 H 5 , n- Propylaminocabonyl, CO-NH-CH (CH 3 ) 2 , CO-NH-CH 2 CH 2 -C 2 H 5 , CO-NH-CH (CH 3 ) -C 2 H 5 , CO-NH-CH 2 -CH (CH 3 ) 2 or CO-NH-C (CH 3 ) 3 , preferably CO-NH-CH 3 or CO-NH-C 2 H 5 , substituted C ⁇ -C 4 alkyl, for example for CH 2 -CO- NH-CH 3 , CH 2 -CO-NH-C 2 H 5 , CH 2 -CO-NH-CH 2 -C 2 H 5 , CH 2 -CO-NH-CH (CH 3 ) 2 , CH 2 -CO
- N- (1-methylpropyl) -N- (2-methylpropyl) aminocarbonylmethyl N-dimethylaminocarbonylethyl, N, N-diethylaminocarbonylethyl, N, N-di (n-propyl) aminocarbonylethyl, N, N-di- [CH (CH 3 ) 2 J -aminocarbonylethyl, N, N-dibutylaminocarbonylethyl, N, N-di (1-methylpropyl) aminocarbonylethyl , N, N-Di (2-methylpropyl) aminocarbonylethyl, N-ethyl-N-methylaminocarbonethyl, N-methyl-N-propylaminocarbonylethyl, N-methyl-N- [CH (CH 3 ) 2 1aminocarbonylethyl, N - Butyl-N-methylaminocarbonylethyl, N-methyl-methyl
- C ⁇ -C 4 -alkoxy-C ⁇ -C -alkoxy-C ⁇ -C 4 -alkyl substituted by C--C-alkoxy in the alkoxy part C ⁇ -C 4 -alkoxy-C ⁇ -C 4 -alkyl, e.g. B. -CH 2 CH 2 -0-CH 2 CH 2 -0-CH 3 ;
- C -C 4 -Alkylthio carbonyl-C ⁇ -C -alkoxy-C ⁇ -C -alkyl C ⁇ -C 4 -alkylthiocarbonyl in the alkoxy part substituted by C ⁇ -C 4 -alkoxy-C ⁇ -C 4 -alkyl, e.g. , B. -CH 2 CH 2 -0-CH 2 C (0) -SCH 3 or -CH 2 CH 2 -0-CH (CH 3 ) C (0) -SCH 3 ;
- C ⁇ -C 4 -alkyl aminocarbonyl-C ⁇ -C -alkoxy-C ⁇ -C 4 -alkyl C ⁇ -C 4 -alkoxy-C -C 4 -alkyl substituted by (C ⁇ -C 4 -alkyl jaminocarbonyl in the alkoxy part, e.g., -CH 2 CH 2 -0-CH 2 C (0) -NHCH 3 or -CH 2 CH 2 -0-CH (CH 3 ) -C (0) -NHCH 3 ;
- C 3 -C 4 -Alkenyloxy-C ⁇ -C 4 alkyl for: by C 3 -C 4 alkenyloxy such as allyloxy, but-l-en-3-yloxy, but-l-en-4-yloxy, but-2 -en-l-yloxy, 1-methylprop-2-enyloxy or 2-methylprop-2-enyloxy substituted C ⁇ -C 4 alkyl, for example for allyloxymethyl, 2-allyloxyethyl or but-l-en-4-yloxymethyl, in particular for 2-allyloxyethyl;
- C 3 -C 4 alkenyloxycarbonyl-C ⁇ -C 4 alkyl for: by C 3 -C 4 alkenyloxycarbonyl such as allyloxycarbonyl, but-l-en-3-yloxycarbonyl, but-l-en-4-yloxycarbonyl, but -2-en-l-yloxycarbonyl, 1-methyl-prop-2-enyloxycarbonyl or 2-methylprop-2-enyloxycarbonyl substituted C ⁇ -C 4 alkyl, so for example for allyloxycarbonylmethyl, 2-allyloxycarbonylethyl or but-l-ene -4-yloxycarbonylmethyl, in particular for 2-allyloxycarbonylethyl;
- C 3 -C alkynyloxy-C ⁇ -C 4 alkyl for: by C 3 -C 4 alkynyloxy such as propargyloxy, but-l-in-3-yloxy, but-l-in-4-yloxy, but-2 -in-1-yloxy, 1-methylprop-2-ynyloxy or 2-methylprop-2-ynyloxy, preferably propargyloxy, substituted C ⁇ -C-alkyl, for example for propargyloxymethyl or 2-propargyloxyethyl, especially for 2-propargyloxyethyl;
- C 3 -C 4 alkynyloxycarbonyl-C ⁇ -C 4 alkyl for: by C 3 -C 4 -alkynyloxycarbonyl such as propargyloxycarbonyl, but-l-in-3-yloxycarbonyl, but-l-in-4-yloxycarbonyl, but -2-in-l-yloxycarbonyl, 1-methyl-prop-2-ynyloxycarbonyl or 2-methylprop-2-ynyloxycarbonyl, preferably propargyloxycarbonyl, substituted C ⁇ -C 4 alkyl, for example for propargyloxycarbonylmethyl or 2-propargyloxycarbonylethyl, in particular for 2-propargyloxycarbonyl; - C 3 -C 8 cycloalkyl for: cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl or cyclooctyl;
- C ⁇ -C alkyl which is substituted by C 3 -C 8 cycloalkyl, for example cyclopropylmethyl, cyclobutylmethyl, cyclopentylmethyl, cyclohexylmethyl, cycloheptylmethyl, Cyclooctylmethyl, 2- (cyclopropyl) ethyl, 2- (cyclobutyl) - ethyl, 2- (cyclopentyl) ethyl, 2- (cyclohexyl) ethyl, 2- (cycloheptyl) ethyl, 2- (cyclooctyl) ethyl, 3- ( Cyclopropyl) propyl, 3- (cyclobutyl) propyl, 3- (cyclopentyl) propyl, 3- (cyclohexyl) propyl, 3- (cycloheptyl) propyl,
- C 3 -C 8 cycloalkoxy is substituted, e.g. B. cyclopropoxymethyl, cyclobutoxy ethyl, cyclopentoxymethyl, cyclohexyloxymethyl, cycloheptyloxymethyl, cyclooctyloxymethyl, 2- (cyclopropyloxyethyl, 2- (cyclobutyloxy) ethyl, 2- (cyclopentyloxy) ethyl, 2- (cyclohexyloxy) ethyl, 2- (cycloheptyloxy ) ethyl, 2- (cyclooctyloxyethyl, 3- (cyclopropyloxy) propyl, 3- (cyclobutyloxy) propyl, 3- (cyclopentyloxy) propyl, 3- (cyclohexyloxy) propyl, 3- (cyclo-heptyloxy) propyl, 3- (Cyclooctyloxy) propyl,
- C 3 -C 8 cycloalkoxy for: cyclopropoxy, cyclobutoxy, cyclopentoxy, cyclohexoxy, cycloheptoxy or cyclooctoxy;
- C 3 -C 8 cycloalkyl-C ⁇ -C 4 -alkoxy for C ⁇ -C 4 -alkoxy which is substituted by C 3 -C 8 -cycloalkyl: for example cyclopropylmethoxy, cyclobutylmethoxy, cyclopentylmethoxy, cyclohexylmethoxy, cyclo-heptylmethoxy, Cyclooctylmethoxy, 2- (cyclopropyl) ethoxy,
- N-linked 3, 4, 5, 6 or 7-membered, saturated heterocyclic radicals are: aziridin-1-yl, azetidin-1-yl, pyrrolidin-1-yl, 1,3-oxazolidin-3- yl, l, 2-oxazolidin-2-yl, tetrahydropyrazol-1-yl, piperidin-1-yl, morpholin-4-yl, hexahydropyridazin-l-yl, hexahydropyrimidin-1-yl, piperazin-1- yl, hexahy dro-1,3, 5-triazin-l-yl, hexahydroazepin-1-yl, hexahydro-1, 3-diazepin-1-yl and hexahydro-1, 4-diazepin-l-yl.
- R 1 is hydrogen or especially methyl
- R 2 has one of the meanings mentioned above.
- a preferred class of 2-phenyl-2H-pyridazin-3-ones according to the invention are those compounds of the general formula I in which Z is oxygen and R 2 is an OR 3 group, in which R 3 is one of the abovementioned, preferably of Hydrogen has different meanings.
- R 3 preferably has the following meanings:
- R 3 C ⁇ -C 4 alkyl, C ⁇ -C 4 haloalkyl, amino-C ⁇ -C 4 alkyl, C ⁇ -C 4 -
- Cyanoalkyl C ⁇ -C -alkoxy-C ⁇ -C 4 -alkyl, C ⁇ -C -alkylthio-C ⁇ -C 4 -alkyl, C ⁇ -C 4 -alkyl-C ⁇ -C 4 -sulfonyl-C ⁇ -C 4 -alkyl , C ⁇ -C 4 -alkylsulfinyl-C ⁇ -C -alkyl, C ⁇ -C 4 -alkylamino-C ⁇ -C -alkyl, di-C ⁇ -C -alkylamino-C ⁇ -C -alkyl, C ⁇ -C 4 - Alkyloxycarbonyl-C ⁇ -C 4 -alkyl, C 3 -C 4 -alkenyl, C 3 -C -alkynyl, C 3 -C 4 -alkenyloxy-C ⁇ -C -alkyl, C 3 -C -alkynyloxy-C ⁇ -
- R 4 is hydrogen, C ⁇ -C-alkyl, C ⁇ -C-alkoxy, C ⁇ -C 4 -haloalkyl,
- R 5 is hydrogen or C ⁇ -C 4 alkyl, especially hydrogen or methyl
- R 4 and R 5 together with the nitrogen atom to which they are attached form a saturated 5 or 6-membered heterocyclic radical which optionally has a further oxygen atom and / or an imino or C ⁇ -C 4 alkylimino group as a ring member , for example a pyrrolidinyl, piperidinyl, piperazinyl, or morpholinyl radical.
- Examples of preferred groups of the general formula NR 4 R 5 are the meanings given in Table 1, lines 30 to 38 for R 2 .
- a further preferred class of 2-phenyl-2H-pyridazin-3-ones according to the invention are those compounds of the general formula I in which Z represents a group NR 6 .
- R 6 is preferably C ⁇ -C 4 alkoxy.
- R 2 then represents a group OR 7 , in which R 7 has the meanings mentioned above and in particular C für-C-alkyl, C ⁇ -C -haloalkyl, C ⁇ -C -alkyloxycarbonyl-C ⁇ -C 4 - alkyl or C ⁇ -C 4 -Halogenalkyloxycarbonyl-C ⁇ -C 4 alkyl.
- Examples of particularly preferred compounds of the general formula I are the compounds of the general formula Ia given below (compounds I in which R 1 is CH 3 , Y is fluorine and X is chlorine) in which Z and R 2 are those in rows 1 to 42 of Table 1 have the meanings given. These compounds are also referred to below as compounds Ia.l to Ia.42.
- Examples of particularly preferred compounds of the general formula I are furthermore the compounds of the general formula Ib given below, in which R 1 is H, Y is fluorine and X g is Cl and in which R 2 and Z are those in lines No. 1 to 42 have the meanings given in Table 1 (compounds Ib.l to Ib.42).
- Examples of particularly preferred compounds of the general formula I are furthermore the compounds of the general formula Ic given below, in which R 1 is CH 3 , Y is fluorine and X is Br and in which Z and R 2 are those in lines No. 1 to 42 of Table 1 meanings (compounds Ic.1 to Ic.42).
- the radical R is usually a C ⁇ -C alkyl group, for. B. for ethyl.
- the variables X, Y, Z and R 2 have the meanings mentioned above.
- Z is O and R 2 is a group OR 3 with R 3 ⁇ H and in particular C ⁇ -C 4 alkoxy.
- the 3-aminocinnamic acid compounds of the formula III are partly. known from the literature, for example from EP-A 240 659, EP-A 300 387 and DE-A 39 04 082, or can be prepared analogously to the methods described there.
- the conversion of the 3-aminocinnamic acid compound III into the corresponding hydrazine compound Ila can be carried out according to the for the conversion known methods of aniline compounds in aromatic hydrazines (see, for example, Houben-Weyl Volume EI, nitrogen compounds I, Georg Thieme Verlag 1967).
- Typical processes include the diazotization of the amino group in III, for example by reacting III with nitrite salts such as sodium nitrite in the presence of mineral acids e.g. B. by reaction in concentrated hydrochloric acid, and then reducing the resulting diazonium compounds, eg. B. with tin (II) chloride under acidic reaction conditions.
- the hydrazones of the formula IIb can be prepared, for example, by reacting the hydrazine Ila with a derivative of 2-oxo-3-trifluoropropanal such as trifluorodibromoacetone using the methods described in WO 97/07104 and WO 99/52878.
- 2-oxo-3-trifluoropropanal such as trifluorodibromoacetone (CAS No. 431-67-4) are in part commercially available or can be prepared by processes known from the literature.
- Suitable acids are mineral acids such as hydrochloric acid, hydrobromic acid, sulfuric acid or phosphoric acid and trifluoroacetic acid, which are generally used as aqueous acids (concentration, for example, 5 to 98% by weight).
- mineral acids such as hydrochloric acid, hydrobromic acid, sulfuric acid or phosphoric acid and trifluoroacetic acid
- organic carboxylic acids such as acetic acid are preferred as solvents.
- a mixture of aqueous acid and solvent is usually used, the volume ratio of aqueous acid and solvent generally being from 1:99 to 99: 1, and preferably in the range from 1: 4 to 4: 1.
- Saponification required reaction temperatures are usually in the range of 20 to 160 ° C, but preferably from 20 to 120 ° C.
- Inert solvents such as methylene chloride and chloroform are used as solvents here
- the mixture can also be carried out in the chlorinating agent itself as a solvent or in the melt.
- a further advantageous embodiment of this reaction consists of initially introducing the acid I "in the alcohol H ⁇ R 3 intended for esterification or a mixture of this alcohol with one of the abovementioned solvents and reacting it in situ with thionyl chloride.
- a further advantageous embodiment of the reaction consists of introducing the acid I "in the alcohol H ⁇ R 3 intended for esterification or a mixture of this alcohol with one of the abovementioned solvents as a solvent and reacting it in the presence of a catalytic amount of a mineral acid such as sulfuric acid
- the hydroxamic acid esters can be prepared starting from the carboxylic acids of the formula I "in the manner described above by successively activating the carboxylic acid and subsequent reaction with the hydroxylamine ether H 2 NR 6.
- the hydroxamic acid ester I optionally in the presence of a base, is reacted with an alkylating agent of the formula XR 7 (or [(R 7 ) 2 OR 7 ] + Y-), an O-alkylation of the carbonyl oxygen taking place in I. ,
- alkylation reagents are trialkyloxonium salts [(R 7 ) 2 OR 7 ] + Y ⁇ , in which R 7 has the meanings given above and Y ⁇ represents a non-nucleophilic anion such as tetrafluoroborate or perchlorate, and aliphatic halides R 7 -X, in which X represents a halogen atom and R 7 has the meanings mentioned above.
- Aliphatic bromides R 7 -Br such as ethyl bromide, allyl bromide, propargyl bromide and ⁇ -bromo-carboxylic acids and their esters such as ⁇ -bromoacetic acid and ⁇ -bromopropionic acid and their esters, for example their methyl and ethyl esters, are particularly suitable.
- the reaction is carried out in a solvent.
- the solvents used are polar solvents such as dimethylformamide (DMF), N-methylpyrrolidone
- the hydroxides and carbonates of the alkali and alkaline earth metals can be used as the base, for example.
- the carbonates of sodium or potassium are preferred.
- the reaction is usually carried out in the temperature range from 0 to the boiling point of the particular solvent. In a preferred embodiment, the process is carried out at 0 to 50 ° C., but very particularly preferably without the addition or removal of heat.
- 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 compounds I or their herbicidal compositions comprising salts control vegetation very well on nonculture areas, particularly when high amounts are applied. In crops such as wheat, rice, maize, soybeans and cotton, they act against weeds and grass weeds without causing any significant damage to crops. This effect occurs especially at low application rates.
- the compounds I or compositions containing 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.
- 2-phenyl-2H-pyridazin-3-ones according to the invention of the general formula I and their agriculturally useful salts are also suitable for the desiccation and / or defoliation of plants.
- desiccants are particularly suitable for drying out the aerial parts of crops such as potatoes, rapeseed, sunflower and soybeans. In this way a completely mechanical harvesting of these important crop plants is made possible.
- the fall-off is based on the formation of separating tissue between the fruit, leaf and sprout part of the plants and is promoted by the 2-phenyl-2H-pyridazin-3-ones of the general formula I and their salts according to the invention.
- the use of the 2-phenyl-2H-pyridazin-3-ones of the general formula I according to the invention and their agriculturally useful salts thus permits controlled fall-off of fruits and controlled defoliation of useful plants such as cotton (defoliation) and thus enables such crop plants a harvest relief.
- Controlled defoliation is also of particular interest for crops such as cotton.
- crops such as cotton.
- the compounds of the formula I according to the invention or the herbicidal compositions comprising them can be, for example, in the form of directly sprayable aqueous solutions, powders, suspensions, and also high-strength aqueous, oily or other suspensions or dispersions, emulsions, oldispersions, pastes, dusts, spreading agents or Granules can be applied by spraying, atomizing, dusting, scattering, pouring or treating the seed or mixing with the seed.
- 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.
- the agents according to the invention contain a herbicidally effective amount of at least one compound of the general formula I or an agriculturally useful salt of I and the auxiliaries customary for the formulation of crop protection agents.
- Inert additives are essentially: mineral oil fractions of medium to high boiling point, such as kerosene or diesel oil, also coal tar oils and oils of vegetable or animal origin, aliphatic, cyclic and aromatic hydrocarbons, e.g. B. paraffin, tetrahydronaphthalene, alkylated naphthalenes or their derivatives, alkylated benzenes or their derivatives, alcohols such as methanol, ethanol, propanol, butanol, cyclohexanol, ketones such as cyclohexanone or strongly polar solvents, eg. B. amides such as N-methylpyrrolidone or water.
- mineral oil fractions of medium to high boiling point such as kerosene or diesel oil, also coal tar oils and oils of vegetable or animal origin, aliphatic, cyclic and aromatic hydrocarbons, e.g. B. paraffin, tetrahydronaphthalene, alkylated
- Aqueous use forms can be prepared from emulsion concentrates, suspensions, pastes, wettable powders or water-dispersible granules by adding water.
- the compounds I 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, adhesive, dispersant or emulsifier and possibly solvent or oil can also be prepared which are suitable for dilution with water.
- alkali, alkaline earth, ammonium salts of aromatic sulfonic acids e.g. B. 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 as well as fatty alcohol glycol ethers, condensation products of sulfonated naphthalene and its derivatives with formaldehyde, condensation products of naphthalene or naphthalene sulfonic acids with phenol and formaldehyde, polyoxyethylene octylphenol ether, ethoxylated isooctyl, octyl or nonylphenol, Alkylphenyl, tribuxylphenol ether,
- Powders, materials for broadcasting and dusts can be prepared by mixing or grinding the active substances together with a solid carrier.
- Granules e.g. B. coating, impregnation 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, diatomaceous earth, calcium and magnesium sulfate, magnesium oxide, ground plastics, fertilizers such as ammonium sulfate, ammonium phosphate, ammonium nitrate, Urea 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 generally contain 0.001 to 98% by weight, preferably 0.01 to 95% by weight, of at least one active ingredient.
- the active ingredients are used in a purity of 90% to 100%, preferably 95% to 100% (according to the NMR spectrum).
- the compounds I according to the invention can be formulated, for example, as follows:
- I 20 parts by weight of compound no. Ia.3 are dissolved in a mixture consisting of 80 parts by weight of alkylated benzene, 10 parts by weight of the adduct of 8 to 10 moles of ethylene oxide and 1 mole of oleic acid-N-monoethanolamide, 5 parts by weight of calcium salt of dodecylbenzenesul fonic acid and 5 parts by weight of the adduct of 40 moles of ethylene oxide with 1 mole of castor oil.
- aqueous dispersion is obtained which contains 0.02% by weight of the active ingredient.
- the active compound application rates are 0.001 to 3.0, preferably 0.01 to 1.0 kg / ha of active substance (see also).
- the compounds of the general formula I according to the invention can be mixed with numerous representatives of other herbicidal or growth-regulating active compound groups and applied together.
- 1,2,4-thiadiazoles, 1,3,4-thiadiazoles, amides, aminophosphoric acid and their derivatives, aminotriazoles, anilides, (het) -aryloxyalkanoic acid and their derivatives, benzoic acid and their derivatives, benzothiadiazinones come as mixing partners , 2-aroyl-l, 3-cyclohexanediones, hetaryl aryl ketones, benzylisoxazolidinones, meta-CF 3 phenyl derivatives, carbamates, quinoline carboxylic acid and their derivatives, chloroacetanilides, cyclohexane-1, 3-dione derivatives, diazines, dichloropropionic acid and their derivatives, dihydrobenzofurans,
- TMS tetramethylsilane
- Example 1 2- [4-chloro-2-fluoro-5- (2-ethoxycarbonyl-2-chloroethen-1-yl) phenyl] -4-methyl-5-trifluoromethyl-2H-pyridazin-3 -one
- Example 7 2- [4-chloro-2-fluoro-5- ⁇ 2- (methoxycarbonylmethyloxycarbonyl) -2-chloroethenyl ⁇ phenyl 1 -4-methyl-5-trifluoromethyl-2H-pyridazin-3-one ( Compound Ia.17)
- the acid chloride By reacting the acid chloride with methyl hydroxyacetate in the presence of an auxiliary base, the compound Ia.17 could be obtained. Fixed point 88-91 ° C.
- the compound la.34 was prepared by reacting the acid chloride Ia.42 with methylglycinate.
- Table 2 shows the compounds of Examples 1 to 9.
- Table 2a shows the compounds of Examples 10 to 18 below. At least 95% of all the compounds given in Tables 2 and 2a are present as Z isomers.
- Example 1.3 Analogously to Example 1.3, the crude product obtained in Example 1.2 was reacted with (l-ethoxycarbonylmethylidene) triphenylphosporan.
- the title compound Ib.3 had a fixed point of 139 to 140 ° C.
- Examples 12 to 18 Analogously to Examples 6 and 4, starting from the acid chloride Ib.42, the pyridazinone compounds given in Table 2a were prepared.
- Plastic 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 hoods until the plants had grown. This cover causes the test plant, unless this was affected by the active ingredients.
- test plants were first grown to a height of 3 to 15 cm and 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 application rate for post-emergence treatment was 31.2 and 15.6 g a.S./ha.
- 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:
- Compound Ia.3 showed very good activity against SETFA and BIDPI (100%) at post-emergence treatment and at an application rate of 31.2 g / ha and good to very good activity against BIDPI (80%) at an application rate of 15.6 g / ha and very good effect against SETFA (100%).
- Example 1-658 of WO 97/07104 trans isomer examined. With post-emergence treatment and application rates of 15.6 and 31.2 g / ha, only 30% destruction / damage was observed with BIDPI. With an application rate of 15.6 g / ha, the effect against SETFA was only 80%.
- the young cotton plants were treated to runoff with an aqueous preparation of the respective active ingredient, which additionally contained 0.15% by weight, based on the total weight of the preparation, of a fatty alcohol ethoxylate (Plurafac® LF 700).
- the amount of water applied was about 1000 l / ha. After 13 days, the number of leaves dropped and the degree of defoliation were determined. The untreated control plants showed no defoliation.
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- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Dentistry (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Plant Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CA002406217A CA2406217A1 (en) | 2000-04-14 | 2001-04-12 | 2-phenyl-2h-pyridazine-3-ones |
AU2001256287A AU2001256287A1 (en) | 2000-04-14 | 2001-04-12 | 2-phenyl-2h-pyridazine-3-ones |
EP01929551A EP1272475A1 (de) | 2000-04-14 | 2001-04-12 | 2-phenyl-2h-pyridazin-3-one |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE10018632.7 | 2000-04-14 | ||
DE10018632 | 2000-04-14 |
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WO2001079182A1 true WO2001079182A1 (de) | 2001-10-25 |
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PCT/EP2001/004213 WO2001079182A1 (de) | 2000-04-14 | 2001-04-12 | 2-phenyl-2h-pyridazin-3-one |
Country Status (5)
Country | Link |
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US (1) | US20030162662A1 (de) |
EP (1) | EP1272475A1 (de) |
AU (1) | AU2001256287A1 (de) |
CA (1) | CA2406217A1 (de) |
WO (1) | WO2001079182A1 (de) |
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US6822016B2 (en) | 2001-09-10 | 2004-11-23 | Johnson & Johnson Vision Care, Inc. | Biomedical devices containing internal wetting agents |
US20060100408A1 (en) * | 2002-03-11 | 2006-05-11 | Powell P M | Method for forming contact lenses comprising therapeutic agents |
US8157012B2 (en) * | 2007-09-07 | 2012-04-17 | Frazier W Lynn | Downhole sliding sleeve combination tool |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19520613A1 (de) * | 1995-06-06 | 1996-12-12 | Bayer Ag | Phenylpyridazinone |
WO1997007104A1 (en) * | 1995-08-21 | 1997-02-27 | Sumitomo Chemical Company, Limited | Pyridazin-3-one derivatives, their use, and intermediates for their production |
WO1999052878A1 (de) * | 1998-04-09 | 1999-10-21 | Bayer Aktiengesellschaft | Substituierte phenylpyridazinone |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US20030130123A1 (en) * | 2000-04-14 | 2003-07-10 | Michael Puhl | 2-Phenyl-2h-pyridazine-3-ones |
-
2001
- 2001-04-12 CA CA002406217A patent/CA2406217A1/en not_active Abandoned
- 2001-04-12 AU AU2001256287A patent/AU2001256287A1/en not_active Abandoned
- 2001-04-12 EP EP01929551A patent/EP1272475A1/de not_active Withdrawn
- 2001-04-12 US US10/257,329 patent/US20030162662A1/en not_active Abandoned
- 2001-04-12 WO PCT/EP2001/004213 patent/WO2001079182A1/de not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19520613A1 (de) * | 1995-06-06 | 1996-12-12 | Bayer Ag | Phenylpyridazinone |
WO1997007104A1 (en) * | 1995-08-21 | 1997-02-27 | Sumitomo Chemical Company, Limited | Pyridazin-3-one derivatives, their use, and intermediates for their production |
US6090753A (en) * | 1995-08-21 | 2000-07-18 | Sumitomo Chemical Company Limited | Pyridazin-3-one derivatives, their use, and intermediates for their production |
WO1999052878A1 (de) * | 1998-04-09 | 1999-10-21 | Bayer Aktiengesellschaft | Substituierte phenylpyridazinone |
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AU2001256287A1 (en) | 2001-10-30 |
CA2406217A1 (en) | 2001-10-25 |
EP1272475A1 (de) | 2003-01-08 |
US20030162662A1 (en) | 2003-08-28 |
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