Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
  • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
  • C07D471/04—Ortho-condensed systems
• • 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
  • A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
• • 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
  • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
  • C07D239/70—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings condensed with carbocyclic rings or ring systems
  • C07D239/72—Quinazolines; Hydrogenated quinazolines
  • C07D239/86—Quinazolines; Hydrogenated quinazolines with hetero atoms directly attached in position 4
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
  • C07D239/70—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings condensed with carbocyclic rings or ring systems
  • C07D239/72—Quinazolines; Hydrogenated quinazolines
  • C07D239/86—Quinazolines; Hydrogenated quinazolines with hetero atoms directly attached in position 4
  • C07D239/88—Oxygen atoms
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
  • C07D239/70—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings condensed with carbocyclic rings or ring systems
  • C07D239/72—Quinazolines; Hydrogenated quinazolines
  • C07D239/86—Quinazolines; Hydrogenated quinazolines with hetero atoms directly attached in position 4
  • C07D239/88—Oxygen atoms
  • C07D239/90—Oxygen atoms with acyclic radicals attached in position 2 or 3
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
  • C07D239/70—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings condensed with carbocyclic rings or ring systems
  • C07D239/72—Quinazolines; Hydrogenated quinazolines
  • C07D239/86—Quinazolines; Hydrogenated quinazolines with hetero atoms directly attached in position 4
  • C07D239/88—Oxygen atoms
  • C07D239/91—Oxygen atoms with aryl or aralkyl radicals attached in position 2 or 3
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
  • C07D239/70—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings condensed with carbocyclic rings or ring systems
  • C07D239/72—Quinazolines; Hydrogenated quinazolines
  • C07D239/86—Quinazolines; Hydrogenated quinazolines with hetero atoms directly attached in position 4
  • C07D239/88—Oxygen atoms
  • C07D239/92—Oxygen atoms with hetero atoms directly attached to nitrogen atoms of the hetero ring
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
  • C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
  • C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
  • C07D333/26—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom 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
  • C07D333/28—Halogen atoms
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
  • C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
  • C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
  • C07D333/26—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom 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
  • C07D333/30—Hetero atoms other than halogen
  • C07D333/36—Nitrogen atoms
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D495/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms
  • C07D495/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
  • C07D495/04—Ortho-condensed systems
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D513/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for in groups C07D463/00, C07D477/00 or C07D499/00 - C07D507/00
  • C07D513/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for in groups C07D463/00, C07D477/00 or C07D499/00 - C07D507/00 in which the condensed system contains two hetero rings
  • C07D513/04—Ortho-condensed systems

Definitions

• the present invention relates to novel pyrimidin-4-one and pyrimidin-4-thione derivatives of formula I, which have pesticidal activity, in particular fungicidal activity,
• A is phenyl, thienyl (including all 3 isomers), thiazolyl, pyridyl or pyridazinyl;
• X is oxygen or sulfur
• R is hydrogen, halogen or trimethylsilyl
• R 2 is hydrogen, halogen or trimethylsilyl; at least one of Rj and R 2 is not hydrogen;
• R 3 is C,-C 8 alkyl, which are unsubstituted or mono to tri-substituted by C 3 -C 6 cycloalkyl, halogen, CrC 6 alkoxy or CrC 6 haloalkoxy; O-C ⁇ -C 6 alkyl, O-C 2 -C 6 alkenyl,
• R 4 is C,-C 8 alkyl, C ⁇ C g alkenyl, C,-C 8 alkinyl which are unsubstituted or mono to tri-substituted by C 3 -C 6 cycloalkyl, halogen, cyano, d-Cealkoxy or CrC 6 haloalkoxy; d-C 4 alkoxy-
• the invention also relates to the preparation of these compounds, to agrochemical compositions comprising as active ingredient at least one of these compounds, as well as to the use of the active ingredients or compositions for pest control, in particular as fungicides, in agriculture and horticulture.
• the compounds I and, optionally, their tautomers may be obtained in the form of their salts. Because the compounds I have at least one basic center they can, for example, form acid addition salts.
• Said acid addition salts are, for example, formed with mineral acids, typically sulfuric acid, a phosphoric acid or a hydrogen halide, with organic carboxylic acids, typically acetic acid, oxalic acid, malonic acid, maleic acid, fumaric acid or phthalic acid, with hydroxycarboxylic acids, typically ascorbic acid, lactic acid, malic acid, tartaric acid or citric acid, or with benzoic acid, or with organic sulfonic acids, typically methanesulfonic acid or p-toluenesulfonic acid.
• the compounds of formula I can also form salts with bases.
• Suitable salts with bases are, for example, metal salts, typically alkali metal salts or alkaline earth metal salts, e.g. sodium salts, potassium salts or magnesium salts, or salts with ammonia or an organic amine, e.g. morpholine, piperidine, pyrrolidine, a mono-, di- or trialkylamine, typically ethylamine, diethylamine, triethylamine or dimethylpropylamine, or a mono-, di- or trihydroxyalkylamine, typically mono-, di- or triethanolamine.
• agrochemical acceptable salts are preferred.
• asymmetrical carbon atoms are present in the compounds of formula I, these compounds are in optically active form. Owing to the presence of double bonds, the compounds can be obtained in the [E] and/or [Z] form. Atropisomerism can also occur.
• the invention relates to the pure isomers, such as enantiomers and diastereomers, as well as to all possible mixtures of isomers, e.g. mixtures of diastereomers, racemates or mixtures of racemates.
• Alkyl groups on their own or as structural element of other groups such as alkoxy are, in accordance with the number of carbon atoms, straight-chain or branched and will typically be methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, n-amyl, tert-amyl, 1 -hexyl, 3-hexyl, 1 -heptyl or 1 -octyl.
• Alkenyl will be understood as meaning straight-chain or branched alkenyl such as allyl, methallyl, 1-methylvinyl, but-2-en-1 -yl, 1 -pentenyl, 1 -hexenyl, 1 -heptenyl or 1 -octenyl.
• Preferred alkenyl radicals contain 3 to 4 carbon atoms in the chain.
• Alkynyl can likewise, in accordance with the number of carbon atoms, be straight-chain or branched and is typically propargyl, but-1-yn-1-yl, but-1-yn-3-yl, 1-pentinyl, 1-hexinyl, 1- heptinyl or 1 -octinyl. The preferred meaning is propargyl.
• Halogen and halo substituents will be understood generally as meaning fluorine, chlorine, bromine or iodine. Fluorine, chlorine or bromine are preferred meanings.
• Haloalkyl can contain identical or different halogen atoms, typically fluoromethyl, difluoro- methyl, difluorochloromethyl, trifluoromethyl, chloromethyl, dichloromethyl, trichloromethyl, 2,2,2-trifluoroethyl, 2-fluoroethyl, 2-chloroethyl, 2,2,2-trichloroethyl, 3,3,3-trifluoropropyl.
• halogen atoms typically fluoromethyl, difluoro- methyl, difluorochloromethyl, trifluoromethyl, chloromethyl, dichloromethyl, trichloromethyl, 2,2,2-trifluoroethyl, 2-fluoroethyl, 2-chloroethyl, 2,2,2-trichloroethyl, 3,3,3-trifluoropropyl.
• Cycloalkyi is, depending on the ring size, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl or cycooctyl.
• Preferred compounds are those of formula I, wherein A is thienyl, including all 3 isomers (subgroup A).
• Ri is hydrogen, fluorine, chlorine, bromine or iodine
• R 2 is hydrogen, fluorine, chlorine, bromine or iodine; at least one of RT and R 2 is not hydrogen;
• R 4 is C,-C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkinyl which are unsubstituted or mono to tri-substituted by C 3 -C 6 cycloalkyl, halogen or d-C 4 alkyoxy; or phenyl which is unsubstituted or mono to tri- substituted by fluorine, chlorine, bromine, C C 4 alkyl, C ⁇ -C 4 haloalkyl, C ⁇ -C 4 alkoxy, CrC 4 haloalkoxy, phenyl or phenoxy and in which the phenyl part is unsubstituted or mono to tri-substituted by fluorine, chlorine, bromine, C,-C 4 alkyl, C ⁇ -C haloalkyl, C C 4 alkoxy or C C 4 haloalkoxy (subgroup B).
• R 4 is C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkinyl which are unsubstituted or mono to tri-substituted by C 3 -C 4 cycloalkyl, fuorine, chlorine, bromine or d-C 4 alkoxy; or phenyl which is unsubstituted or mono to tri-substituted by fluorine, chlorine, bromine, CrC 4 alkyl, d-C 4 haloalkyl, d-C 4 alkoxy, d-C haloalkoxy, phenyl or phenoxy and in which the phenyl part is unsubstituted or mono to tri-substituted by fluorine, chlorine or bromine (subgroup C).
• A is thienyl[2.3-d]
• Rt is hydrogen, chlorine or bromine
• R 2 is hydrogen, chlorine or bromine; at least one of Ri and R 2 is not hydrogen;
• R 3 is C 3 -C 5 alkyl or O-d-C 4 alkyl
• R 4 is C 2 -C 5 alkyl or phenyl which is unsubstituted or mono to tri-substituted by fluorine, chlorine, bromine, d-C alkyl or phenoxy and in which the phenoxy is unsubstituted or mono to tri-substituted by fluorine, chlorine or bromine (subgroup D1 ).
• A is thienyl[2.3-d]
• X is sulfur
• R is hydrogen, chlorine or bromine
• R 2 is hydrogen, chlorine or bromine; at least one of Ri and R 2 is not hydrogen;
• R 3 is C 3 -C 5 alkyl or O-d-C 4 alkyl
• R 4 is C 2 -C 5 alkyl or phenyl which is unsubstituted or mono to tri-substituted by fluorine, chlorine, bromine, C,-C 4 alkyl or phenoxy and in which the phenoxy is unsubstituted or mono to tri-substituted by fluorine, chlorine or bromine (subgroup D2).
• Another preferred group within the scope of subgroup C is that of the compounds of the formula I, wherein A is thienyl[3.2-d],
• Rj is hydrogen, chlorine or bromine
• R 2 is hydrogen, chlorine or bromine; at least one of Ri and R 2 is not hydrogen;
• R 3 is C 3 -C 5 alkyl or O-C C 4 alkyl
• R is C 2 -C 5 alkyl or phenyl which is unsubstituted or mono to tri-substituted by fluorine, chlorine, bromine, d-C alkyl or phenoxy and in which the phenoxy is unsubstituted or mono to tri-substituted by fluorine, chlorine or bromine (subgroup E).
• Another preferred group of compounds are those of formula I, wherein A is pyridyl (subgroup F).
• Ri is hydrogen, fluorine, chlorine, bromine or iodine
• R is hydrogen, fluorine, chlorine, bromine or iodine; at least one of R and R 2 is not hydrogen;
• R 3 is C j -Cealkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkinyl which are unsubstituted or mono to tri-substituted by C 3 -C 6 cycloalkyl, halogen or d-C 4 alkoxy; O-d-C 6 alkyl, O-C 2 -C 6 alkenyl, O-C 2 -C 6 alkynyl, which are unsubstituted or mono to tri-substituted by C 3 -C 6 cycloalkyl, halogen or d-dalkoxy;
• R 4 is C ⁇ Cealkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkinyl which are unsubstituted or mono to tri-substituted by C 3 -C 6 cycloalkyl, halogen or d-C 4 alkoxy; or phenyl which is unsubstituted or mono to tri- substituted by fluorine, chlorine, bromine, d-C alkyl, d-C 4 haioalkyl, d-C alkoxy, d-dhaloalkoxy, phenyl or phenoxy and in which the phenyl part is unsubstituted or mono to tri-substituted by fluorine, chlorine, bromine, d-dalkyl, d-C 4 haloalkyl, d-dalkoxy or C ⁇ -C 4 haloalkoxy (subgroup G).
• R 2 is hydrogen, fluorine, chlorine, bromine or iodine; at least one of Ri and R 2 is not hydrogen;
• R 4 is C ⁇ dalkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkinyl which are unsubstituted or mono to tri-substituted by C 3 -C 6 cycloalkyl, halogen or C ⁇ -C alkoxy; or phenyl which is unsubstituted or mono to tri- substituted by fluorine, chlorine, bromine, d-C 4 alkyl, C C haloalkyl, C ⁇ -C 4 alkoxy, d-dhaloalkoxy, phenyl or phenoxy and in which the phenyl part is unsubstituted or mono to tri-substituted by fluorine, chlorine, bromine, d-C 4 alkyl, d-C haloalkyl, d-dalkoxy or d-dhaloalkoxy (subgroup J1).
• Another preferred group within the scope of subgroup H is that of compounds of the formula I, wherein X is sulfur;
• R is hydrogen, fluorine, chlorine or bromine
• R 2 is hydrogen, fluorine, chlorine or bromine; at least one of R and R 2 is not hydrogen;
• R 3 is C,-C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkinyl which are unsubstituted or mono to tri-substituted by C 3 -C 6 cycloalkyl, halogen or d-C 4 alkoxy;
• R 4 is C,-C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkinyl which are unsubstituted or mono to tri-substituted by C 3 -C 6 cycloalkyl, halogen or d-C 4 alkoxy; or phenyl which is unsubstituted or mono to tri- substituted by fluorine, chlorine, bromine, C ⁇ -C 4 alkyl, d-C 4 haloalkyl, d-C alkoxy, C ⁇ -C haloalkoxy, phenyl or phenoxy and in which the phenyl part is unsubstituted or mono to tri-substituted by fluorine, chlorine, bromine, d-C 4 alkyl, d-C 4 haloalkyl, d-dalkoxy or d-dhaloalkoxy (subgroup J2).
• Rj is hydrogen, fluorine, chlorine, bromine or iodine
• R is hydrogen, fluorine, chlorine, bromine or iodine; at least one of R and R 2 is not hydrogen;
• R 3 is C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkinyl which are unsubstituted or mono to tri-substituted by C 3 -C 6 cycloalkyl, halogen or C ⁇ -C 4 alkoxy; O-d-C 6 alkyl, O-C 2 -C 6 alkenyl, O-C 2 -C 6 alkynyl, which are unsubstituted or mono to tri-substituted by C 3 -C 6 cycloalkyl, halogen or C ⁇ -C 4 alkoxy;
• R 4 is C,-C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkinyi which are unsubstituted or mono to tri-substituted by C 3 -C 6 cycloalkyl, halogen or d-C 4 alkoxy; or phenyl which is unsubstituted or mono to tri- substituted by fluorine, chlorine, bromine, C C 4 alkyl, d-C 4 haloalkyl, d-C alkoxy, C,-C 4 haloalkoxy, phenyl or phenoxy and in which the phenyl part is unsubstituted or mono to tri-substituted by fluorine, chlorine, bromine, d-dalkyi, d-C 4 haloalkyl, d-C 4 alkoxy or d-dhaloalkoxy (subgroup L).
• Another preferred group of compounds are those of formula I, wherein A is pyridazinyl (subgroup M).
• Rj is hydrogen, fluorine, chlorine, bromine or iodine
• R 2 is hydrogen, fluorine, chlorine, bromine or iodine; at least one of R and R 2 is not hydrogen;
• R 3 is C,-C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkinyl which are unsubstituted or mono to tri-substituted by C 3 -C 6 cycloalkyl, halogen or d-C alkoxy; O-d-C 6 alkyl, O-C 2 -C 6 alkenyl, O-C 2 -C 6 alkynyl, which are unsubstituted or mono to tri-substituted by C 3 -C 6 cycloalkyl, halogen or d-dalkoxy;
• R 4 is C,-C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkinyl which are unsubstituted or mono to tri-substituted by C 3 -C 6 cycloalkyl, halogen or d-C 4 alkoxy; or phenyl which is unsubstituted or mono to tri- substituted by fluorine, chlorine, bromine, d-C 4 alkyl, d-C 4 haloalkyl, C,-C 4 alkoxy, d-dhaloalkoxy, phenyl or phenoxy and in which the phenyl part is unsubstituted or mono to tri-substituted by fluorine, chlorine, bromine, d-C alkyl, C,-C 4 haloalkyl, d-C 4 alkoxy or Cj-C haloalkoxy (subgroup N).
• the methyl th ⁇ ophene-2-am ⁇ no-3-carboxy- late can be prepared, for example, in accordance with Acta Pharm. Suecica 1968. Vol. 5, p.563, according to S.Gronowitz et al.
• Other heterocycles can be prepared according to instructions in the literature.
• step 1 in scheme 1 The reaction of the ⁇ -amino- ⁇ -carboalkoxyheterocycles or ⁇ - amino- ⁇ -carbocychc acid heterocycles with amides (R CONHR 3 ) (step 1 in scheme 1 ) is conveniently carried out in the presence of POCI 3 , SOCI 2 or SO 2 CI 2 , in solvents, such as CICH 2 CH 2 CI, CHCI 3 , CH 2 CI 2 , benzene, toluene, hexane, cyclohexane or others in the temperature range from RT to reflux temperature.
• solvents such as CICH 2 CH 2 CI, CHCI 3 , CH 2 CI 2 , benzene, toluene, hexane, cyclohexane or others in the temperature range from RT to reflux temperature.
• the resulting amidines (III) either cyclise spontaneously to the pyr ⁇ m ⁇ d ⁇ n-4-ones or were converted into the cychsed products by treatment with bases such as t-Butyl-O-K, NaH, KH, n-BuLi, NaOH, Na 2 CO 3 or others in solvents such as THF, dioxane, hexane, toluene, DMSO, DMF, dimethylacetamid or others at temperatures between 20°C and reflux-temperature.
• bases such as t-Butyl-O-K, NaH, KH, n-BuLi, NaOH, Na 2 CO 3 or others in solvents such as THF, dioxane, hexane, toluene, DMSO, DMF, dimethylacetamid or others at temperatures between 20°C and reflux-temperature.
• step 3 in scheme 1 The replacement of the 4-one group with sulfur to the 4-thione group (step 3 in scheme 1 ) is carried out by reaction with P 2 S 5 or Lawesson-reagent in tetrahydrofurane, dioxane or toluene as solvent in the temperature range of RT to reflux temperature.
• the invention also relates to the intermediates of the formula III, IV and V, and especially to those wherein A represents thienyl[2.3-d].
• radicals Rj or R 2 indicated above can be introduced by reacting the resulting anions with electrophiles (step 1 in scheme 2), typically Br 2 , NBS, F 2 , ICl, Cl 2 , F * reagents, trimethylsilyl chloride.
• E + j 2 NBS (N-Bromsuccinimide), NCS (N-Chiorsuccinimide), l 2 , Cl 2 , Br 2 , FCI, F + reagents, TMS and similar Si reagents.
• the following compounds can likewise be prepared in general accordance with the methods described in scheme 2:
• N-bromosuccinimide or N-chlorosuccinimide or Cl 2 gas or Br 2 ) are used for halogenation.
• the solvent used is, for example, pyridine in the temperature range from 0°C to reflux.
• the reaction time is 1 to 24 hours.
• the described reactions are carried out in per se known manner, e.g. in the presence or absence of a suitable solvent or diluent or of a mixture thereof, if appropriate with cooling, at room temperature or with heating, e.g. in the temperature range from about -20°C to the boiling temperature of the reaction medium, preferably in the range from about -20°C to about +150°C and, if required, in a closed vessel, under pressure, in an inert gas atmosphere and/or under anhydrous conditions.
• solvents or diluents are: aromatic, aliphatic and aiicyclic hydrocarbons and halogenated hydrocarbons, typically benzene, toluene, xylene, chlorobenzene, bromobenzene, petroleum ether, hexane, cyclohexane, dichloromethane, trichloromethane, dichloroethane or trichioroethane; ethers, typically diethyl ether, tert-butylmethyl ether, tetrahydrofuran or dioxane; ketones, typically acetone or methyl ethyl ketone; alcohols, typically methanol, ethanoi, propanol, butanol, ethylene glycol or glycerol; esters, typically ethyl acetate or butyl acetate; amides, typically N,N-dimethylformamide, N,N-dimethylace
• Suitable bases are, for example, alkali metal hydroxide or alkaline earth metal hydroxide, alkali metal hydride or alkaline earth metal hydride, alkali metal amide or alkaline earth metal amide, alkali metal alkanolate or alkaline earth metal alkanolate, alkali metal carbonate or alkaline earth metal carbonate, alkali metal dialkylamide or alkaline earth metal dialkylamide, or alkali metal alkylsilylamide or alkaline earth metal alkylsilylamide, alkyl- amines, alkylenediamines, optionally N-alkylated, optionally unsaturated cycloalkylamines, basic heterocycles, ammonium hydroxides and carbocyclic amines.
• DBU 1 ,8-diazabicyclo[5.4.0]undec-5-ene
• the compounds of the formula I can also be prepared as follows
• R 5 C r C 6 -alkyl
• the amino carboxylic acidamide of formula VI reacts with the orthoester of formula XIII in the presence or absence of a suitable solvent or diluent, if required in the presence of an acid catalyst at room temperature or with heating, e.g. in the temperature range from about 20 to 200°C.
• solvents or diluents are ethers like tert.butylmethylether, tetrahydrofurane, dimethylether; amides like N,N-dimethylformam ⁇ de or N-methyl-pyrrolidone; sulfoxides, typically dimethylsulfoxid and alcohols like methanol, ethanoi, propanol, butanol, ethylene glycol or glycerol.
• catalyst can be used hydrogen halides, methanesulfonic acid, triflouromethyl aceticacid, p-toluenesulfonic acid and others in the absence of water.
• bases are sodium hydroxid, potassium hydroxid, sodium hydrogencarbonate, sodium carbonate, sodium hydride, potassium hydride, potassium carbonate and others.
• scheme 5 describes the reaction of the aminothiophene-carboxylic-acid amide Via with the orthoester XIII in the presence or absence of a solvent, if required in the presence of an acid catalyst in the temperature range from 20 to 200°C.
• the resulting intermediate Vila is then halogenated in the presence of a solvent at temperatures from 20°C to reflux.
• the halogenated intermediate Villa is than cyclised in the presence of a base, in the presence or absence of a suitable solvent at temperatures from 20°C to reflux.
• Halogenation reagents are typically N- Bromsuccinimide, N-Chlorsuccinimide, N-iodsuccinimide, Chlorgas, Br , thionylchloride and others.
• solvents used for the halogenation are tert.-butylmethylether, tetrahydrofurane, chloroform, methylenechloride, pyridine and quinoline.
• Hal + NCS, NBS, NIS, Cl 2 , Br 2 S0 2 CI 2 solvents for halogenation: THF, TBME, CHCI3, CH 2 CI 2 pyridine, quinoline and others
• Scheme 6 Another alternative is described in scheme 6, in which the amino-carboalkoxy-thiophene of formula lla reacts with the orthoester XIII to the intermediate IXa, than the compound IXa is transformed to the amidine Ilia and cyclised to the thienopyrimidinone X.
• the halogenation of X to obtain 1.1 is as described in Scheme 3.
• R 6 C r C 8 -alkyl
• reaction conditions from lla to IXa is as described in the schemes 4 or 5, as well as the cyclisation from Ilia to X is as described above.
• the reaction from IXa to Ilia requires as solvent for example tetrahydrofurane, N,N-dimethylformamide or others at a temperature range from 0°C to reflux.
• Scheme 8 describes the alternative route comprising the reaction of the compound lla with the orthoester XIII to the intermediate IXa, which is halogenated to the intermediate Xlla and than converted to the thiophene Xla. Cyclisation of Xla gives the end product 1.1 .
• the reactions conditions are as described in the schemes 4, 5, 6 and 7.
• Quinazolinone derivatives having fungicidal properties are known from WO-94/26722 or EP-A-276825 and thienopyrimidinones are known from WO-97/02262.
• novel compounds of formula I have, for practical purposes, a very advantageous spectrum of activities for protecting plants against diseases that are caused by fungi as well as by bacteria and viruses.
• the compounds of formula I can be used in the agricultural sector and related fields as active ingredients for controlling plant pests.
• the novel compounds are distinguished by excellent activity at low rates of application, by being well tolerated by plants and by being environmentally safe. They have very useful curative, preventive and systemic properties and are used for protecting numerous cultivated plants.
• the compounds of formula I can be used to inhibit or destroy the pests that occur on plants or parts of plants (fruit, blossoms, leaves, stems, tubers, roots) of different crops of useful plants, while at the same time protecting also those parts of the plants that grow later e.g. from phytopathogenic microorganisms.
• compounds of formula I as dressing agents for the treatment of plant propagation material, in particular of seeds (fruit, tubers, grains) and plant cuttings (e.g. rice), for the protection against fungal infections as well as against phytopathogenic fungi occurring in the soil.
• the compounds I are, for example, effective against the phytopathogenic fungi of the following classes: Fungi imperfecti (e.g. Botrytis, Pyricularia, Helminthosporium, Fusarium, Septoria, Cercospora and Alternaria) and Basidiomycetes (e.g. Rhizoctonia, Hemileia, Puccinia). Additionally, they are also effective against the Ascomycetes classes (e.g. Ven- turia and Erysiphe, Podosphaera, Moniiinia, Uncinula) and of the Oomycetes classes (e.g. Phytophthora, Pythium, Plasmopara).
• Fungi imperfecti e.g. Botrytis, Pyricularia, Helminthosporium, Fusarium, Septoria, Cercospora and Alternaria
• Basidiomycetes e.g. Rhizoctonia, Hemileia, Puccinia
• novel compounds of formula I are effective against phytopathogenic bacteria and viruses (e.g. against Xanthomonas spp, Pseudomonas spp, Erwinia amylovora as well as against the tobacco mosaic virus).
• target crops to be protected typically comprise the following species of plants: cereal (wheat, barley, rye, oat, rice, maize, sorghum and related species); beet (sugar beet and fodder beet); pomes, drupes and soft fruit (apples, pears, plums, peaches, almonds, cherries, strawberries, raspberries and blackberries); leguminous plants (beans, lentils, peas, soybeans); oil plants (rape, mustard, poppy, olives, sunflowers, coconut, castor oil plants, cocoa beans, groundnuts); cucumber plants (pumpkins, cucumbers, melons); fibber plants (cotton, flax, hemp, jute); citrus fruit (oranges, lemons, grapefruit, mandarins); vegetables (spinach, lettuce, asparagus, cabbages, carrots, onions, tomatoes, potatoes, paprika); lauraceae (avocado, cinnamomum, camphor) or plants such
• the compounds of formula I are normally used in the form of compositions and can be applied to the crop area or plant to be treated, simultaneously or in succession with further compounds.
• further compounds can be e.g. fertilizers or micronutrient donors or other preparations which influence the growth of plants. They can also be selective herbicides as well as insecticides, fungicides, bactericides, nematicides, molluscicides or mixtures of several of these preparations, if desired together with further carriers, surfactants or application promoting adjuvants customarily employed in the art of formulation.
• the compounds of formula I can be mixed with other fungicides, resulting in some cases in unexpected synergistic activities.
• azoles such as azaconazole, bitertanol, propiconazole, difenoconazole, diniconazole, cyproconazole, epoxiconazole, fluquinconazole, flusilazole, flutriafol, hexaconazole, imazalil, imibenconazole, ipconazole, tebuconazole, tetraconazole, fenbuconazole, metconazole, myclobutanil, perfurazoate, penconazole, bromuconazole, pyrifenox, prochloraz, triadimefon, triadimenol, triflumizole or triticonazole; pyrimidinyl carbinoles such as ancymidol, fenarimol or nuarimol; 2-amino- pyrimidine such as bupirimate, dimethirimol or ethir
• Preferred compound for mixing with the above-mentioned mixing components is compound no. 3.30.
• Another preferred compound for mixing with the above-mentioned mixing components is compound no. 3.31 .
• Another preferred compound for mixing with the above-mentioned mixing components is compound no. 3.58.
• Another preferred compound for mixing with the above-mentioned mixing components is compound no. 3.59.
• Suitable carriers and adjuvants can be solid or liquid and are substances useful in formulation technology, e.g. natural or regenerated mineral substances, solvents, dispersants, wetting agents, tackifiers, thickeners, binders or fertilizers.
• a preferred method of applying a compound of formula I, or an agrochemical composition which contains at least one of said compounds, is foliar application.
• the frequency of application and the rate of application will depend on the risk of infestation by the corresponding pathogen.
• the compounds of formula I can also penetrate the plant through the roots via the soil (systemic action) by drenching the locus of the plant with a liquid formulation, or by applying the compounds in solid form to the soil, e.g. in granular form (soil application). In crops of water rice such granulates can be applied to the flooded rice field.
• the compounds of formula I may also be applied to seeds (coating) by impregnating the seeds or tubers either with a liquid formulation of the fungicide or coating them with a solid formulation.
• the compounds of formula I are used in unmodified form or, preferably, together with the adjuvants conventionally employed in the art of formulation. To this end they are conveniently formulated in known manner to emulsifiable concentrates, coatable pastes, directly sprayable or dilutable solutions, dilute emulsions, wettable powders, soluble powders, dusts, granulates, and also encapsulations e.g. in polymeric substances.
• the methods of application such as spraying, atomizing, dusting, scattering, coating or pouring, are chosen in accordance with the intended objectives and the prevailing circumstances.
• Advantageous rates of application are normally from 5 g to 2 kg of active ingredient (a.i.) per hectare (ha), preferably from 10 g to 1 kg a.i./ha, most preferably from 20 g to 600 g a.i./ha.
• convenient dosages are from 10 mg to 1 g of active substance per kg of seeds.
• compositions containing the compound of formula I and, if desired, a solid or liquid adjuvant are prepared in known manner, typically by intimately mixing and/or grinding the compound with extenders, e.g. solvents, solid carriers and, optionally, surface active compounds (surfactants).
• extenders e.g. solvents, solid carriers and, optionally, surface active compounds (surfactants).
• Suitable carriers and adjuvants may be solid or liquid and correspond to the substances ordinarily employed in formulation technology, such as, e.g. natural or regenerated mineral substances, solvents, dispersants, wetting agents, tackifiers, thickeners binding agents or fertilizers. Such carriers are for example described in WO 97/33890.
• the agrochemical formulations will usually contain from 0.1 to 99 % by weight, preferably from 0.1 to 95 % by weight, of the compound of formula I, 99.9 to 1 % by weight, preferably 99.8 to 5 % by weight, of a solid or liquid adjuvant, and from 0 to 25 % by weight, preferably from 0.1 to 25 % by weight, of a surfactant.
• compositions may also contain further adjuvants such as stabilizers, antifoams, viscosity regulators, binders or tackifiers as well as fertilizers, micronutrient donors or other formulations for obtaining special effects.
• Example P-2 5-Chioro-2-(1 -n-butyl-1 -methoxymethyleneamino)thiophene-3-carboxylic-acid propylamide
• the resulting crude product (yield: 0.8g of 2-n-butyl-3-n-propyl-3H- thieno[2,3-d]-pyrimidine-4-one in the form of a brown liquid) can be used without further purification for the halogenation step.
• the crude product is added to 100 ml of absolute tetrahydrofurane and under stirring 4.36 g (0.1 mol) NaH in 50 ml abs. THF is carefully added. After stirring for 2 hours at reflux temperature, the solvent is removed in a water-jet vacuum and the residue is taken up in ethyl acetate/water. The water-phase is extracted with additionally ethyl acetate. The organic phase is dried over sodium sulfate and the solvent removed in a water-jet vacuum.
• NCS N-chlorosuccinimide

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• Organic Chemistry (AREA)
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• Environmental Sciences (AREA)
• Agronomy & Crop Science (AREA)
• Engineering & Computer Science (AREA)
• Dentistry (AREA)
• General Health & Medical Sciences (AREA)
• Wood Science & Technology (AREA)
• Zoology (AREA)
• Plant Pathology (AREA)
• Pest Control & Pesticides (AREA)
• Health & Medical Sciences (AREA)
• Plural Heterocyclic Compounds (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
• Nitrogen Condensed Heterocyclic Rings (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
• Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

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