WO2001079183A1 - 2-phenyl-2h-pyridazin-3-one - Google Patents
2-phenyl-2h-pyridazin-3-one Download PDFInfo
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- WO2001079183A1 WO2001079183A1 PCT/EP2001/004214 EP0104214W WO0179183A1 WO 2001079183 A1 WO2001079183 A1 WO 2001079183A1 EP 0104214 W EP0104214 W EP 0104214W WO 0179183 A1 WO0179183 A1 WO 0179183A1
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- alkyl
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- 0 C*(Nc(cc1)cc(C=C(*)C(*)=O)c1Cl)=* Chemical compound C*(Nc(cc1)cc(C=C(*)C(*)=O)c1Cl)=* 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C243/00—Compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
- C07C243/10—Hydrazines
- C07C243/22—Hydrazines having nitrogen atoms of hydrazine groups bound to carbon atoms of six-membered aromatic rings
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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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C251/00—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton
- C07C251/72—Hydrazones
- C07C251/74—Hydrazones having doubly-bound carbon atoms of hydrazone groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C251/76—Hydrazones having doubly-bound carbon atoms of hydrazone groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of a saturated carbon skeleton
-
- 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.
- the present invention relates to 2-phenyl-2H-pyridazin-3-ones of the general formula I.
- R 1 is hydrogen or -CC 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,
- Aminocarbonyl-C 1 -C 4 alkoxy -CC-C 4 alkyl (C 1 -C 4 -alkyl) aminocarbonyl-C 1 -C 4 -alkoxy-C ⁇ -C 4 alkyl, di- (C ⁇ -C alkyl) aminocarbonyl-C ⁇ -C4-alkoxy-C ⁇ -C 4 - alkyl , C 3 -C 6 alkenyl, C 3 -C 6 alkynyl, C 3 -C alkenyloxy -CC-alkyl, C 3 -C 4 -alkynyloxy -CC 4 -alkyl,
- R 5 is hydrogen, -C 4 alkyl, -C 4 alkoxy, C 3 -C 6 alkenyl, C 3 -C alkenyloxy, C 3 -C 6 alkynyl, C 3 -C alkynyloxy, C 3 -C 8 cycloalkyl, C 3 -C 8 cycloalkyl -CC 4 -alkyl, C 3 -C 8 -cycloalkyl -CC 4 -alkoxy mean;
- 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 which selects 1 or 2 further, preferably non-adjacent, heteroatoms under oxygen and sulfur, and / or an I ino or -CC 4 alkyl limino group as ring members and / or one or two substituents selected from halogen, -C 4 alkyl and -C 4 alkoxy may have ;
- the invention further relates to
- the invention also relates to diazanyl cinnamic acid compounds of the general formula II
- R 2 has the meaning given above and preferably represents a group OR 3 ,
- R 3 and X have the meanings given above.
- the compounds of the formula II are suitable intermediates for the preparation of the compounds of the general formula I according to the invention.
- 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.
- Agriculturally useful salts include, in particular, the salts of those cations or the acid addition salts of those acids whose cations or anions do not adversely affect the herbicidal activity of the compounds I. So come as cations in particular the ions of the alkali metals, preferably sodium and potassium, the alkaline earth metals, preferably calcium, magnesium and barium, and the transition metals, preferably manganese, copper, zinc and iron, and the ammonium ion, the one to four C if desired !
- -C can carry alkyl and / or a phenyl or benzyl substituent, preferably diisopropylammonium, tetramethylammonium, tetrabutylammonium, trimethylbenzylammonium, des furthermore phosphonium ions, sulfonium ions, preferably tri (C ⁇ -C alkyl) sulfonium and sulfoxonium ions, preferably tri (C! -C-alkyl) sulfoxonium, into consideration.
- Anions of useful 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 1 -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.
- 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 ;
- B. CHF, CHF 2 , CF 3 , CH 2 C1, dichloromethyl, trichloromethyl, chlorofluoromethyl, dichlorofluoromethyl, chlorodifluoromethyl, 2-fluoroethyl, 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, 3-chloropropyl, 2,3-dichloropropyl, 2-bromopropyl, 3-bromopropyl, 3,3, 3-trifluoropropyl, 3,3, 3-trichloropropyl, 2,2,3,3, 3-pentafluoropropyl, heptafluoropropyl, 1- (Fluoromethyl) -2-fluoroethyl, 1- (chloromethyl) -2-chloroethyl, l- (bromomethyl) -2-bromomethyl, 4-fluorobutyl, 4-chlorobutyl, 4-bromobutyl or nonafluorobutyl;
- Amino -CC-C 4 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) -l- (CH3) eth-l-yl or 1- (CH 2 NH 2 ) prop-1-yl;
- - C 1 -C 4 alkylamino -CC-C-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 Di-C-alkyl substituted by di (-C-C-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- (l-methylpropyl) amino-methyl, N, N-di (2-methylpropyl) aminomethyl, N, N-di [C (CH 3 ) 3 ] aminomethyl, N-ethyl-N- methylaminomethyl, N-methyl1-N-propylaminomethyl, N-methyl1-N- [CH (CH 3 ) 2 ] aminomethyl, N-butyl-N-methylaminomethyl, N-methyl-N-
- C 1 -C 4 -alkoxy-C 4 -C 4 alkyl for: CH 2 -OCH 3 , CH 2 -OC 2 H 5 , n-propoxymethyl, CH 2 -OCH (CH 3 ) 2 , n-butoxymethyl, (1- Methyl propoxy) methyl, (2-methyl propoxy) methyl, CH 2 -OC (CH 3 ) 3 , 2- (methoxy) ethyl, 2- (ethoxy) ethyl, 2- (n-propoxy) ethyl, 2- (l -Methylethoxy) ethyl, 2- (n-butoxy) ethyl, 2- (l-methylpropoxy) ethyl, 2- (2-methylpropoxy) ethyl, 2- (1, 1-dimethylethoxy) ethyl, 2- ( Methoxy) propyl, 2- (ethoxy) propyl, 2_ (n-propoxy) propyl, 2- (l-methyle
- C ⁇ -C -haloalkoxy-C ⁇ ⁇ C 4 alkyl by C ⁇ -C 4 haloalkoxy, such as OCH 2 F, OCHF 2, OCF 3, 2 0CH C1, OCH (Cl) 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-fluoroethoxy, 2,2,2-trichloroethoxy, OC 2 F 5 , 2-fluoropropoxy, 3-fluoropropoxy, 2,2-difluoropropoxy, 2,3-difluoropropoxy, 2 - chloro
- Hydroxy-C 4 -alkoxy-C 1 -C 4 -alkyl by hydroxy-C ⁇ -C 4 -alkoxy such as 0CH 2 0H, 1-hydroxyethoxy, 2-hydroxyethoxy, 1-hydroxyprop-l-oxy, 2-hydroxyprop-l -oxy, 3-hydroxyprop-l-oxy, 1-hydroxybut-l-oxy, 2-hydroxybut-l-oxy, 3-hydroxybut-l-oxy, 4-hydroxybut-l-oxy, l-hydroxybut-2-oxy , 2-hydroxybut-2-oxy, 3-hydroxybut-2-oxy, 4-hydroxybut-2-oxy, l- (CH 2 OH) eth-l-oxy, or l- (CH 2 OH) prop-l- oxy-substituted -CC 4 alkyl, so z.
- Cyano-C 1 -C -alkoxy -CC 4 -alkyl by cyano -CC -alkoxy such as cyanomethoxy, 1-cyanoeth-l-oxy, 2-cyanoeth-l-oxy, 1-cyano-prop- 1-oxy, 2-cyanoprop-l-oxy, 3-cyanoprop-l-oxy, 1-cyano-prop-2-oxy, 2-cyanoprop-2-oxy, 1-cyanobut-
- - amino-C ⁇ -C -alkoxy-C ⁇ -C 4 alkyl -alkoxy by amino-C ⁇ -C as A inomethoxy, 1-Aminoeth-l-oxy, 2-Aminoeth-l-oxy,
- - Hydroxycarbonyl-C 1 -C 4 alkoxy-C 1 -C 4 -alkyl C 1 -C 4 -alkoxy-C 1 -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,
- Aminocarbonyl-C ⁇ -C alkoxy-C 1 -C 4 alkyl by CONH 2 substituted in the alkoxy part C ⁇ -C -alkoxy-C ⁇ -C 4 alkyl eg -CH 2 -0-CH 2 CONH 2, -CH 2 CH 2 -0-CH 2 CONH 2 , -CH 2 CH 2 CH 2 -0-CH 2 CONH 2 , -CH 2 CH (CH 3 ) -0-CH 2 CONH 2 , -CH (CH 3 ) CH 2 -0-CH 2 CONH 2 , -CH 2 -0-CH 2 CH 2 CONH 2 , -CH 2 CH 2 -0-CH 2 CH 2 CONH 2 , -CH 2 CH 2 CH 2 -0-CH 2 CH 2 CONH 2 , -CH 2 CH (CH 3 ) -0-CH 2 CH 2 CONH 2 , -CH (CH 3 ) CH 2 -0-CH 2 CH 2 CONH 2 , -CH (CH 3 ) CH 2 -0-
- C 1 -C 4 -alkyl sulfonyl-C 1 -C 6 -alkyl for a C 1 -C 4 -alkyl sulfyl radical 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 ⁇ -C 4 alkyl, for example for CH 2 SO-CH 3 , CH 2 SO-C 2 H 5 , CH 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 -CH (
- C 1 -C 4 alkylsulfonyl-C 1 -C 4 -alkyl for a through a C 1 -C 4 -alkylsulfonyl radical such as S0 2 -CH 3 , S0 2 -C 2 H 5 , S0 2 -CH 2 -C 2 H 5 , S0 2 -CH (CH 3 ) 2 , n-butylsulfonyl, S0 2 -CH (CH 3 ) -C 2 H 5 , S0 2 -CH 2 -CH (CH 3 ) 2 or S0 2 -C (CH 3 ) 3 , preferably S0 2 -CH 3 or S0 2 -C 2 H 5 substituted C 1 -C 4 -alkyl, for example for CH 2 S0 2 -CH 3 , CH 2 S0 2 -C 2 H 5 , CH 2 S0 2 -CH 2 - C 2 H 5 , CH 2 S0 2 -CH (CH 3
- Hydroxycarbonyl -CC 4 alkyl for: CH 2 C00H, 1- (COOH) ethyl, 2- (COOH) ethyl, 1- (COOH) prop-l-yl, 2- (COOH) prop-l-yl, 3- (COOH) - prop-1-yl, l- (COOH) but-l-yl, 2- (COOH) but-l-yl, 3- (C00H) but-1-yl, 4- (C00H) but-l-yl, 1- (C00H) but-2-yl, 2- (C00H) but-2-yl, 3- (C00H) but-2-yl, 4- (COOH) but-2-yl, 1- (CH 2 C00H) eth-l-yl, l- (CH 2 COOH) -l- (CH 3 ) -eth-l-yl or 1- (CH 2 COOH) prop-l-yl;
- (-C-C 4 -alkoxy) carbonyl -CC-C 4 -alkyl for: by (-C-C 4 -alkoxy) carbonyl such as CO-OCH 3 , CO-OC 2 H 5 , CO-OCH 2 -C 2 H 5 , CO-OCH (CH 3 ) 2 , n-butoxycarbonyl, CO-OCH (CH 3 ) -C 2 H 5 , CO-OCH 2 -CH (CH 3 ) 2 or CO-OC (CH 3 ) 3 , preferably CO -OCH 3 or CO- OC 2 H 5 substituted -CC-alkyl, for example for CH 2 -CO-OCH 3 , CH 2 -CO-OC 2 H 5 , CH 2 -CO-OCH 2 -C 2 H 5 , CH 2 -CO-OCH (CH 3 ) 2 , n-butoxycarbo- nylmethyl, CH 2 -CO-OCH (CH 3 ) -C
- Aminocarbonyl -CC 4 alkyl for: CH 2 CONH 2 , 1- (CONH 2 ) ethyl, 2- (CONH 2 ) ethyl, 1- (CONH 2 ) prop-1-yl, 2- (CONH 2 ) prop -l-yl, 3- (CONH 2 ) prop-l-yl, l- (CONH 2 ) but-l-yl, 2- (CONH 2 ) but-l-yl, 3- (CONH 2 ) but-l -yl, 4- (CONH 2 ) but-l-yl, 1- (C0NH 2 ) but-2-yl, 2- (CONH 2 ) but-2-yl, 3- (CONH 2 ) but-2-yl , 4- (CONH 2 ) but-2-yl, l- (CH 2 CONH 2 ) eth-l-yl, l- (CH 2 CONH 2 ) -l- (CH 3 ) -eth-l-yl or 1
- (-CC alkylamino) carbonyl -CC alkyl for: by (-CC 4 -alkylamino) carbonyl such as CO-NH-CH 3 , CO-NH-C 2 Hs, 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 1 -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 -C0-NH-CH (CH 3 ) 2 , CH 2 -CO-NH-CH 2 CH 2
- C 1 -C 4 -alkyl amino-C 1 -C 4 -alkoxy-C 1 -C -alkyl C 1 -C 4 -alkoxyamino substituted by di-C ⁇ -C 4 -alkylamino in the alkoxy part -CC-C 4 -alkoxy-C 1 -C 4 alkyl, e.g. B. -CH 2 CH 2 -0-CH 2 CH 2 -N (CH 3 ) 2 ;
- C 1 -C -alkoxy carbonyl-C ⁇ -C alkoxy-C 1 -C 4 alkyl X by C 4 -C -A1- koxycarbonyl substituted in the alkoxy C ⁇ -C -alkoxy-C ⁇ -C 4 -al - kyl, e.g. B. -CH 2 CH 2 -0-CH 2 C (0) -OCH 3 , -CH 2 CH 2 -0-CH (CH 3 ) C (0) -OCH 3 , -CH 2 CH 2 -0-CH 2 C (O) -OCH 2 CH 3 , -CH 2 CH 2 -0-CH (CH 3 ) C (O) -OCH 2 CH 3 ;
- (C ⁇ -C4 alkyl) aminocarbonyl-C ⁇ -C4-alkoxy-C ⁇ -C alkyl by (C ⁇ -C4 alkyl) aminocarbonyl in the alkoxy substituted C ⁇ -C4-alkoxy-C ⁇ -C 4 alkyl, z.
- Di- (C ⁇ -C4 alkyl) aminocarbonyl-C ⁇ -C4-alkoxy-C ⁇ -C 4 alkyl substituted di (C ⁇ -C4 alkyl) aminocarbonyl in the alkoxy C 1 -C 4 alkoxy-C 1 -C 4 alkyl, e.g. B. -CH 2 CH 2 -0-CH 2 -C (0) -N (CH 3 ) 2 or -CH 2 CH 2 -0-CH (CH 3 ) -C (O) -N (CH 3 ) 2 ;
- C 3 -C -Alkenyloxy -CC-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, l-methylprop-2-enyloxy or 2-methylprop-2-enyloxy substituted C 1 -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 1 -C 4 alkyl for: by C 3 -C 4 alkenyloxycarbonyl such as allyloxycarbonyl, but-1-en-3-yloxycarbonyl, but-1-en-4-yloxycarbonyl, But-2-en-l-yloxycarbonyl, 1-methyl-prop-2-enyloxycarbonyl or 2-methylprop-2-enyloxycarbonyl-substituted C 1 -C 4 -alkyl, for example for allyloxycarbonylmethyl, 2-allyloxycarbonylethyl or but- 1-en-4-yloxycarbonylmethyl, in particular for 2-allyloxycarbonylethyl;
- C 3 -C 4 -alkynyloxy -CC -alkyl for: by C 3 -C 4 -alkynyloxy such as propargyloxy, but-l-in-3-yloxy, but-l-in-4-yloxy, but-2-in -l-yloxy, l-methylprop-2-ynyloxy or 2-methylprop-2-ynyloxy, preferably propargyloxy, substituted C 1 -C 4 alkyl, for example for propargyloxymethyl or 2-propargyloxyethyl, in particular for 2-propargyloxyethyl;
- C 3 -C 4 alkynyloxycarbonyl -CC-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 1 -C 4 alkyl, for example for propargyloxycarbonylmethyl or 2-propargyloxycarbonylethyl, in particular for 2-propargyloxycarbonyl;
- cycloalkyl for: cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl or cyclooctyl;
- Cyclopropoxymethyl Cyclobutoxymethy1, Cyclopentoxy ethy1, Cyclohexyloxymethy1, Cycloheptyloxymethyl, Cyclooctyloxy ethyl, 2- (Cyclopropyl- 5 oxy) ethyl, 2- (Cyclobutyloxy) -ethyl, 2- (Cyclopentyloxy) ethyl,
- N-linked 3, 4, 5, 6 or 7-membered, saturated 5 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, hexahydro-1,3,5-triazin-l-yl, hexahydroazepin-1-yl, hexahydro-1,3-dia-0 zepin-1-yl and hexahydro-1,4-diazepin-l- yl.
- Q R 1 is hydrogen or in particular methyl
- R 2 has one of the abovementioned meanings, in particular an OR 3 group , in which R 3 has the abovementioned meanings, preferably different from hydrogen. 5
- R 3 preferably has the following meanings:
- R 3 is hydrogen, C ⁇ -C 4 -alkyl, -C-C 4 -haloalkyl, hydroxy-C ⁇ -C 4 -alkyl, amino-C ⁇ -C 4 -alkyl, C ⁇ -C 4 -cyanoalkyl, C !
- R 3 is C ⁇ -C -alkyl, C haloalkyl, C ⁇ -C4 - cyanoalkyl, C 1 -C 4 -alkoxy-C 1 -C 4 alkyl, C 1 -C alkylthio-C 1 - C 4 alkyl, -CC 4 alkyloxycarbonyl -CC 4 alkyl, C 3 -C 4 alkenyl or C 3 -C 4 alkynyl.
- R 2 represents a group of the general formula NRR 5 , then preferably mean:
- R 4 is hydrogen, -CC 4 alkyl, C ! -C 4 alkoxy, C 1 -C 4 haloalkyl, C ⁇ -C4-alkoxy-C ⁇ -C alkyl, or C 1 -C alkyloxycarbonyl-C 1 -C -AL- alkyl and
- R 5 is hydrogen or -CC 4 alkyl, especially hydrogen or methyl; or 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 -CC 4 -alkyl limino 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 48 to 58 for R 2 .
- 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 and X are Cl) in which R 2 is that in lines 1 to 58 of Table 1 has the meanings given. These compounds are also referred to below as compounds Ia.l to Ia.58.
- 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 and X is Cl and R 2 has the meanings given in rows 1 to 58 of table 1 has (compounds Ib.l to Ib.58).
- 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 represents CH 3 and X represents Br and R 2 has the meanings given in rows 1 to 58 of Table 1 (Compounds Ic.l to Ic.58).
- the radical R is usually a C ⁇ -C 4 alkyl group, for. B. for ethyl.
- the variables X and R 2 have the meanings mentioned above.
- R 2 represents a group OR 3 with R 3 ⁇ -H and in particular C 1 -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 3-aminocinnamic acid compound III can be converted into the corresponding hydrazine compound Ha by the methods known for converting aniline compounds into 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 Ha with a derivative of 2-0xo-3-trifluoropropanal such as trifluorodibromoacetone using the methods described in WO 97/07104 and WO 99/52878.
- a derivative of 2-0xo-3-trifluoropropanal such as trifluorodibromoacetone
- 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.
- the reaction temperatures required for saponification are generally in the range from 20 to 160 ° C., but preferably from 20 to 120 ° C.
- Inert solvents such as methylene chloride, chloroform are used here as solvents , Dichloromethane or toluene.
- the reaction can also be carried out in the chlorinating agent itself as a solvent or in the melt. Depending on the chlorinating agent, one works with 1 to 5 equivalents of the chlorinating agent (or with a large excess if the chlorinating agent serves as solvent ) and at temperatures between -78 ° C and 150 ° C.
- Dichloroethane or toluene For this purpose, 1 to 5 equivalents of the alcohol H ⁇ R 3 or amine HNR 4 R 5 , based on the acid chloride, are preferably used. If appropriate, the reaction is carried out with the addition of preferably 1 to 5 equivalents of an auxiliary base, for. B. a trialkylamine such as triethylamine or pyridine. The reaction is preferably carried out at temperatures in the range from 0 ° C. to 100 ° C.
- a further advantageous embodiment of this reaction consists in introducing the acid I "in the alcohol H ⁇ R 3 intended for esterification or a mixture of this alcohol with one of the solvents mentioned above 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 2-phenyl-2H-pyridazin-3-ones according to the invention of the general formula 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 non-cultivated areas, particularly at high application rates. In crops such as wheat, rice, maize, soybeans and cotton, they act against weeds and grass weeds without significantly damaging the crop plants. This effect occurs especially at low application rates.
- 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 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.
- the application of the herbicidal compositions or the active compounds which contain the 2-phenyl-2H-pyridazin-3-ones of the general formula I and / or their salts can be carried out pre-emergence, post-emergence or together with the seed of a crop respectively.
- the compounds of the formula I according to the invention or the herbicidal compositions comprising them can be used, for example, in the form of directly sprayable aqueous solutions, powders, suspensions, and also high-strength aqueous, oily or other suspensions or dispersions, emulsions, oil dispersions, 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 generally contain a herbicidally effective amount of at least one compound of the 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. amines 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.
- emulsions, pastes or oil dispersions 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.
- surface-active substances come the alkali, alkaline earth, ammonium salts of aromatic sulfonic acids, e.g. B.
- 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 dodecylbenzenesulene. fonic acid and 5 parts by weight of the adduct of 40 moles of ethylene oxide with 1 mole of castor oil.
- VIII 1 part by weight of compound no. 51 is dissolved in a mixture consisting of 80 parts by weight of cyclohexanone and 20 parts by weight of Wettol® EM 31 (non-ionic emulsifier based on ethoxylated castor oil). A stable emulsion concentrate is obtained.
- 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 acids 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, quinolinecarboxylic acid and their derivatives, chloroacetanilides, cyclohexane-l, 3-dione derivatives, diazines, dichloropropionic acid Derivatives, dihydrobenzofur
- the active compound application rates are 0.001 to 3.0, preferably 0.01 to 1.0 kg / ha of active substance (see also).
- TMS tetraethylsilane
- Example 1 2- [4-chloro-3- (2-ethoxycarbonyl-2-chloroethen-l-yl) phenyl] -4-methyl-5-trifluoromethyl-2H-pyridazin-3-one
- the acid chloride Ia.2 was prepared from 0.8 g of acid Ia.l in the manner described in Example 2, which was then reacted without further purification with 0.16 g of pyrrolidine in 20 ml of dichloromethane in the presence of catalytic amounts of dimethylaminopyridine , The solution was concentrated in vacuo and the residue was chromatographed on silica gel (cyclohexane / ethyl acetate). Compound la.51 was thus obtained in a yield of 1.04 g. Oil.
- Compound Ia.55 was prepared in the manner described in Example 12 by reacting the acid chloride Ia.2 with N-methylglycethyl ester. Oil (mixture of rotamers).
- Table 2 shows the compounds of Examples 1 to 16. All of the compounds listed in Table 2 are at least 95% Z-isomers.
- 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 plants to germinate evenly, unless this was affected by the active ingredients.
- test plants were first grown to a height of 3 to 15 cm, depending on the growth habit, 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 15.6 and 7.8 g aS / 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:
- 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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01936233A EP1272476A1 (de) | 2000-04-14 | 2001-04-12 | 2-phenyl-2h-pyridazin-3-one |
| AU2001262197A AU2001262197A1 (en) | 2000-04-14 | 2001-04-12 | 2-phenyl-2h-pyridazine-3-ones |
| CA002406227A CA2406227A1 (en) | 2000-04-14 | 2001-04-12 | 2-phenyl-2h-pyridazine-3-ones |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10018631.9 | 2000-04-14 | ||
| DE10018631 | 2000-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001079183A1 true WO2001079183A1 (de) | 2001-10-25 |
Family
ID=7638818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2001/004214 Ceased WO2001079183A1 (de) | 2000-04-14 | 2001-04-12 | 2-phenyl-2h-pyridazin-3-one |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20030130123A1 (de) |
| EP (1) | EP1272476A1 (de) |
| AU (1) | AU2001262197A1 (de) |
| CA (1) | CA2406227A1 (de) |
| WO (1) | WO2001079183A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1272475A1 (de) * | 2000-04-14 | 2003-01-08 | Basf Aktiengesellschaft | 2-phenyl-2h-pyridazin-3-one |
| CN109896973B (zh) * | 2019-02-22 | 2021-12-24 | 中国热带农业科学院热带生物技术研究所 | 一种肉桂酰胺衍生物及其用途 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993006090A1 (de) * | 1991-09-20 | 1993-04-01 | Basf Aktiengesellschaft | Substituierte-3-phenylurazile als herbizide |
| WO1996005179A1 (de) * | 1994-08-16 | 1996-02-22 | Basf Aktiengesellschaft | Substituierte triazolinone als pflanzenschutzmittel |
| 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 |
-
2001
- 2001-04-12 CA CA002406227A patent/CA2406227A1/en not_active Abandoned
- 2001-04-12 EP EP01936233A patent/EP1272476A1/de not_active Withdrawn
- 2001-04-12 US US10/257,311 patent/US20030130123A1/en not_active Abandoned
- 2001-04-12 WO PCT/EP2001/004214 patent/WO2001079183A1/de not_active Ceased
- 2001-04-12 AU AU2001262197A patent/AU2001262197A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993006090A1 (de) * | 1991-09-20 | 1993-04-01 | Basf Aktiengesellschaft | Substituierte-3-phenylurazile als herbizide |
| WO1996005179A1 (de) * | 1994-08-16 | 1996-02-22 | Basf Aktiengesellschaft | Substituierte triazolinone als pflanzenschutzmittel |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2406227A1 (en) | 2001-10-25 |
| AU2001262197A1 (en) | 2001-10-30 |
| US20030130123A1 (en) | 2003-07-10 |
| EP1272476A1 (de) | 2003-01-08 |
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