Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
  • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
  • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
  • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
  • C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
  • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
  • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
  • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
  • C07D239/32—One oxygen, sulfur or nitrogen atom
  • C07D239/42—One nitrogen atom
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
  • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
  • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
  • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
  • C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
  • C07D239/47—One nitrogen atom and one oxygen or sulfur atom, e.g. cytosine
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
  • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
  • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
  • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
  • C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
  • C07D239/48—Two nitrogen atoms
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
  • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
  • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
  • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
  • C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
  • C07D239/52—Two oxygen atoms
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
  • C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
  • C07D403/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a chain containing hetero atoms as chain links

Definitions

• the present invention relates to 5-phenylpyrimidines of the formula I.
• R 1 ,] * 2 independently of one another are hydrogen, Ci-Cg-alkyl,
• Ci-C ⁇ -haloalkyl C 3 ⁇ C 6 cycloalkyl, C 3 -C 6 halocycloalkyl, C 2 -C 6 ⁇ alkenyl, C 2 -C 6 haloalkenyl, C 2 -C 6 alkynyl or C 2 -C 6 haloalkynyl,
• Sulfonyl- (-S0 2 -) group may be interrupted and / or substituted by one to four groups R a and / or R;
• R a , R b independently of one another hydrogen, Ci-Cg-alkyl, C 2 -C 8 -alkenyl, C 2 -C 8 -alkynyl, C ⁇ -C 6 -haloalkyl, C ⁇ -C 6 -alkoxy, Ci-Cg -haloalkoxy,
• R x is independently cyano, nitro, Airdno, amino- carbonyl, aminothiocarbonyl, halogen, hydroxy, C ⁇ -C 6 -alkyl, C 6 haloalkyl, C ⁇ ⁇ C 6 alkyl carbonyl, C ß alkylsulfonyl, -C-C 6 alkyl sulfoxyl, C 3 -C 6 cycloalkyl, Ci-Ce-alkoxy, Ci-C ß -haloalkoxy, C ⁇ -C 6 alkyloxycarbonyl, Ci-C ⁇ alkylthio, C ⁇ -C 6 -alkyl lamino , Di-Ci-C ⁇ alkylamino, C ⁇ -C 6 alkylamino carbonyl, Di-C ⁇ -C 6 alkylaminocarbonyl, Ci-C ⁇ alkyl- aminothiocarbonyl, di-Ci-Cg-alkylaminothiocarbonyl, C 2
• R ⁇ , R ß is hydrogen or -CC 6 alkyl
• R a and R b can also form a saturated or unsaturated five- or six-membered ring together with an alkyl or alkenylene chain with the bridging atom;
• R 3 is hydrogen, halogen, cyano, -CC 6 alkyl, Ci-Cö-halogeno-alkyl, Ci-Cg-alkoxy, Ci-C ⁇ -haloalkoxy or C 3 -C 8 alkenyl - oxy;
• R 4 is hydrogen, halogen, cyano, hydroxy, mercapto, azido,
• R c is one of the monovalent groups mentioned for R and R b ;
• the invention also relates to processes for the preparation of these compounds, compositions containing them and their use for controlling harmful fungi.
• Pyridylpyrimidine derivatives with fungicidal activity are known from EP-A 407 899 DE-A 42 27 811 and WO-A 92/10490. Tetrahydropyrimidine derivatives with a fungicidal action are known from GB-A 2 277 090.
• the compounds of the formula I have an increased activity against harmful fungi compared to the known compounds.
• the compounds I can be obtained in various ways.
• the sulfones of formula II are reacted with compounds of formula III under basic conditions.
• the alkali metal, alkaline earth metal or ammonium salt of compound III can be used directly.
• This reaction usually takes place at temperatures from 25 ° C. to 250 ° C., preferably 40 ° C. to 210 ° C., in an inert organic solvent in the presence of a base [cf. DE-A 39 01 084; Chimia, Vol. 50, pp. 525-530 (1996); Khi. Geterotsikl. Soedin, Vol. 12, pp. 1696-1697 (1998)].
• Suitable solvents are halogenated hydrocarbons, ethers such as diethyl ether, diisopropyl ether, tert-butyl methyl ether, 1, 2-dimethoxyethane, dioxane, anisole and tetrahydrofuran, as well as dimethyl sulfoxide, dimethylformamide and dimethylacetamide. Ethanol, di ⁇ hlormethane, acetonitrile and tetrahydrofuran are particularly preferred. Mixtures of the solvents mentioned can also be used.
• Bases generally include inorganic compounds such as alkali metal and alkaline earth metal hydroxides such as lithium hydroxide, sodium hydroxide, potassium hydroxide and calcium hydroxide, alkali metal and alkaline earth metal hydrides such as lithium hydride, sodium hydride, potassium hydride and calcium hydride, alkali metal and alkaline earth metal carbonate and potassium carbonate such as lithium carbonate and potassium carbonate ,
• the bases are generally used in catalytic amounts, but they can also be used in excess.
• the starting materials are generally reacted with one another in equimolar amounts. It can be advantageous for the yield to use III in an excess of up to 10 times, in particular up to 3 times, based on II.
• Hydroxypyrimidines of the formula VI are converted into halogen compounds VII [cf. J. Chem. Soc. (1943) p. 383; Helv. Chim. Acta (1981) Vol. 64, pp. 113-152].
• P0C1 3 and P0Br 3 are particularly suitable as halogenating agents.
• Phenylpyrimidines of the formula I in which R 3 represents cyano or groups bonded via oxygen are advantageously obtained from the corresponding halogen compounds of the formula I by reaction with compounds IX under basic conditions.
• the alkali metal, alkaline earth metal or ammonium salt of compound IX can be used directly.
• This reaction usually takes place at temperatures of 25 ° C. to 250 ° C., preferably 40 ° C. to 210 ° C., in an inert organic solvent, if necessary. in the presence of a base [cf. Recl. Trav. Chim. Pays-Bas (1942) Vol. 61, p. 291; J. Heterocycl. Chem. (1993) Vol. 30 (4), pp. 993-995].
• Suitable solvents are ethers, sulfoxides, amides, particularly preferably dimethyl sulfoxide, N, N-dimethylformamide, N-methylpyrrolidone, N N-dimethylacetamide, diethyl ether, tetrahydrofuran, 1, 2-dimethoxyethane. Mixtures of the solvents mentioned can also be used.
• Bases generally include inorganic compounds such as alkali metal and alkaline earth metal hydroxides such as lithium hydroxide, sodium hydroxide, potassium hydroxide and calcium hydroxide, alkali metal and alkaline earth metal hydrides such as lithium hydride, sodium hydride, potassium hydride and calcium hydride, alkali metal and alkaline earth metal carbonates such as lithium carbonate, potassium carbonate and calcium carbonate.
• alkali metal and alkaline earth metal hydroxides such as lithium hydroxide, sodium hydroxide, potassium hydroxide and calcium hydroxide
• alkali metal and alkaline earth metal hydrides such as lithium hydride, sodium hydride, potassium hydride and calcium hydride
• alkali metal and alkaline earth metal carbonates such as lithium carbonate, potassium carbonate and calcium carbonate.
• the bases are generally used in catalytic amounts, but they can also be used in excess.
• Phenylpyrimidines of the formula I in which R 3 is Ci-C ⁇ - alkyl or Ci-Cg-haloalkyl are advantageously obtained from the corresponding halogen compounds of the formula I by reaction with organometallic compounds of the formula X in which M is is a group Mg-Hal, Zn-R 3 or B (0R) 2 , wherein shark is a halogen atom and R is hydrogen or -CC 4 alkyl and R 3 is C ⁇ -C 6 alkyl, obtained.
• This reaction usually takes place at temperatures from -25 ° C. to 250 ° C., preferably 0 ° C. to 150 ° C., in an inert organic solvent, if appropriate in the presence of a transition metal catalyst [cf. Chem. And Phar. Bull. (1980) Vol. 28, No. 2, pp. 25 571-577; Tetrahedron Lett. (1996) Vol. 37 (8), p. 1309; Tetrahedron Lett. (1994) Vol. 35 (19), p. 3155; Synlett (1999) Vol. 7, p. 1145].
• a transition metal catalyst cf. Chem. And Phar. Bull. (1980) Vol. 28, No. 2, pp. 25 571-577; Tetrahedron Lett. (1996) Vol. 37 (8), p. 1309; Tetrahedron Lett. (1994) Vol. 35 (19), p. 3155; Synlett (1999) Vol. 7, p. 1145].
• Suitable solvents are aliphatic hydrocarbons, aromatic hydrocarbons, ethers, particularly preferably diethyl ether, tetrahydrofuran, 1,2-dimethoxyethane, benzene, toluene and xylene. Mixtures of the solvents mentioned can also be used.
• Nickel (0), nickel (II) - palladium (0) - and palladium (II) compounds are suitable as transition metal catalysts .
• Salts such as palladium chloride or palladium acetate or also Pd complexes can be used. The only requirement is that the ligands on the palladium can be displaced from the substrate under the reaction conditions.
• the starting materials are generally reacted with one another in equimolar amounts. It can be advantageous for the yield to use X in a 5 to 10-fold, in particular up to 3-fold excess based on I.
• the starting materials of the formula II required for the preparation of the compounds I can be obtained by methods known from the literature, for example on the following synthesis route:
• R is Ci-C ⁇ alkyl.
• the reaction is usually carried out in a protic solvent such as alcohols, especially ethanol, optionally in the presence of a base such as Na 2 C0 3 and NaHCO. 3
• the reaction temperature is preferably 70-220 ° C [cf. Collect. Czech. Chem. Commun. , Vol. 48, pp. 137-143 (1983); Heteroat. Chem., Vol. 10, pp. 17-23 (1999); Czech. Chem. Commun., Vol. 58, pp. 2215-2221 (1993)].
• Compounds XII are converted to thiobarbituric acid derivatives by alkylation agents XIII.
• R is Ci-C ⁇ -alkyl and X is a nucleophilically removable leaving group.
• Formula XIII generally stands for conventional alkylating agents, such as methyl chloride and methyl bromide, dimethyl sulfate or methyl methanesulfonate.
• the reaction can be carried out in water or a dipolar aprotic solvent such as N, N-dimethylformamide [cf. US 5,250,689], it is advantageously carried out in the presence of a base, such as KOH, NaOH, NaHC0 3 and a 2 C0 3 or pyridine.
• a base such as KOH, NaOH, NaHC0 3 and a 2 C0 3 or pyridine.
• the reaction temperature is preferably 10-60 ° C
• Suitable chlorinating agents [Cl] are, for example, POCI3, PC1 3 / C1 2 or PCI 5 .
• the reaction can be carried out in excess chlorinating agent (POCI 3 ) or an inert solvent. This reaction is usually carried out between 10 and 5 180 0 c.
• This reaction is preferably carried out at 20 to 120 ° C [cf. J. Chem. Res. S (7), pp. 286-287 (1995); Liebigs Ann. Chem., Pp. 1703-1705 (1995)] in an inert solvent, optionally in the presence of an auxiliary base, such as aHC0 3 , NaC0 3 or tert. Amines.
• the thio compounds XVII are oxidized to the sulfones of the formula II.
• the reaction is preferably carried out at 10 to 50 ° C. in the presence of protic or aproptic solvents [see: B. Kor. Chem. Soc, Vol. 16, pp. 489-492 (1995); Z. Chem., Vol. 17, p. 63 (1977)].
• Suitable oxidizing agents are, for example, hydrogen peroxide or 3-chloroperbenzoic acid.
• Groups R 3 other than chlorine can be introduced into the sulfones II analogously to the compounds of the formula I.
• the saponification is usually carried out in inert polar solvents, such as water or alcohols, preferably with inorganic bases, such as alkali or alkaline earth metal hydroxides, in particular NaOH.
• the substituted hydroxyamines can be used as the free base or, preferably, in the form of their acid addition salts. For practical reasons, halides such as chlorides or sulfates are particularly suitable.
• reaction mixtures are worked up in a conventional manner, e.g. by mixing with water, separating the phases and, if necessary, purifying the crude products by chromatography.
• the intermediate and end products fall partly in the form of colorless or slightly brownish, viscous oils, which are freed from volatile components or purified under reduced pressure and at a moderately elevated temperature. If the intermediate and end products are obtained as solids, they can also be purified by recrystallization or digesting.
• Halogen fluorine, chlorine, bromine and iodine
• Alkyl saturated, straight-chain or branched hydrocarbon radicals with 1 to 4 or 6 carbon atoms, for example C 1 -C 6 -alkyl such as methyl, ethyl, propyl, 1-methylethyl, butyl, 1-methylpropyl, 2-methylpropyl, 1, 1-dimethylethyl, pentyl, 1-methylbutyl, 2-methylbutyl, 3-methylbutyl, 2,2-dimethylpropyl, 1-ethylpropyl, hexyl, 1, 1-dimethylpropyl, 1, 2-dirnethylpropyl, 1-methylpentyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, 1, 1-dimethylbutyl, 1,2-dimethylbutyl, 1, 3-dimethylbutyl, 2, 2-dimethylbutyl, 2, 3-dimethylbutyl, 3,3-di-ethylbutyl , 1-ethylbutyl, 2-e
• Haloalkyl straight-chain or branched alkyl groups with 1 to 6 carbon atoms (as mentioned above), in which groups the hydrogen atoms are partially or completely passed through
• halogen atoms as mentioned above can be replaced, for example C 1 -C 2 haloalkyl such as chloromethyl, bromomethyl, dichloromethyl, trichloromethyl, fluoromethyl, difluoromethyl, trifluoromethyl, chlorofluoromethyl, dichlorofluoromethyl, chlorodifluoromethyl, 1-chloroethyl, 1-bromoethyl, 1-fluoroethyl, 2 -Fluoroethyl, 2,2-Di-
• Alkoxy straight-chain or branched alkyl groups with 1 to 20 10 carbon atoms (as mentioned above) which are bonded to the skeleton via an oxygen atom (-0-);
• Alkylthio straight-chain or branched alkyl groups with 1 to 10 or 1 to 4 carbon atoms (as mentioned above), which are attached to the skeleton via a sulfur atom (-S-);
• Alkenyl unsaturated, straight-chain or branched hydrocarbon radicals having 2 to 4, 6 or 8 carbon atoms and a double bond in any position, for example C 2 -Ce-alkenyl such as
• Haloalkenyl unsaturated, straight-chain or branched hydrocarbon radicals with 2 to 8 carbon atoms and a double bond in any position (as mentioned above), the hydrogen atoms in these groups being partially or completely against halogen atoms as mentioned above, in particular fluorine, chlorine and Bromine, can be replaced;
• Alkynyl straight-chain or branched hydrocarbon groups with 2 to 4, 6 or 8 carbon atoms and a triple bond in any position, for example C 2 -Cs-alkynyl such as ethynyl, 1-propynyl, 2-propynyl, 1-butynyl, 2-butynyl, 3 -Butinyl, 1-methyl-2-propynyl, 1-pentynyl, 2-pentynyl, 3-pentynyl, 4-pentynyl, 1-methyl-2-butynyl, 1-methyl-3-butynyl, 2-methyl-3 - butynyl, 3-methyl-l-butynyl, l, l-dimethyl-2-propynyl, l-ethyl-2-propynyl, 1-hexynyl, 2-hexynyl, 3-hexynyl, 4-hexynyl, 5-hexynyl, l
• Haloalkynyl unsaturated, straight-chain or branched hydrocarbon radicals having 2 to 8 carbon atoms and a triple bond in any position (as mentioned above), the hydrogen atoms in these groups being partially or completely replaced by halogen atoms as mentioned above, in particular fluorine, chlorine and bromine can;
• Alkynyloxy unsaturated, straight-chain or branched hydrocarbon radicals with 3 to 8 carbon atoms and a triple bond in any position (as mentioned above) which is not adjacent to the heteroatom and which are bonded to the structure via an oxygen atom (-0-) ;
• Cycloalkyl monocyclic, saturated hydrocarbon groups with 3 to 6, 8 or 10 carbon ring members, for example C 3 -C 8 cycloalkyl such as cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl and cyclooctyl;
• 5- or 6-membered heterocyclyl containing, in addition to carbon ring members, one to three nitrogen atoms and / or one oxygen or sulfur atom or one or two oxygen and / or sulfur atoms, e.g. 2-tetrahydrofuranyl, 3-tetrahydrofuranyl, 2-tetrahydrothienyl, 3-tetrahydrothienyl, 2-pyrrolidinyl,
• 5-ring heteroaryl groups which in addition to carbon atoms can contain one to four nitrogen atoms or one to three nitrogen atoms and one sulfur or oxygen atom as ring members , and in which two adjacent carbon ring members or a nitrogen and an adjacent carbon ring member may be bridged by a buta-1,3-diene-1,4-diyl group;
• 6-membered heteroaryl containing one to three or one to four nitrogen atoms 6-ring heteroaryl groups which, in addition to carbon atoms, may contain one to three or one to four nitrogen atoms as ring members, e.g. 2-pyridinyl, 3-pyridinyl, 4-pyridinyl, 3-pyridazinyl, 4-pyridazinyl, 2-pyrimidinyl, 4-pyrimidinyl, 5-pyrimidinyl, 2-pyrazinyl, 1,3,5-triazin-2- yl and 1,2,4-triazin-3-yl;
• Alkylene divalent unbranched chains from 1 to 4 CH 2 groups, for example CH 2 , CH 2 CH, CH 2 CH 2 CH 2 and CH 2 CH 2 CH 2 CH 2 ;
• Oxyalkyl ⁇ n divalent unbranched chains from 2 to 4 CH groups, one valence being attached to the skeleton via an oxygen atom, for example OCH 2 CH 2 , OCH 2 CH 2 CH and OCH 2 CH 2 CH 2 CH 2 ;
• Oxyalkyleneoxy divalent unbranched chains of 1 to 3 CH 2 groups, both valences being bonded to the skeleton via an oxygen atom, for example 0CH 2 0, OCH 2 CH 2 0 and OCH 2 CH 2 CH 2 0;
• especially preferred compounds I are those in which R 1 and R 2 are independently Ci-Cg-alkyl, Ci-C ⁇ haloalkyl, C 3 -C 6 cycloalkyl, C 2 -C 6 alkenyl.
• R 1 is C 1 -C 4 -alkyl and R 2 is hydrogen.
• R 1 and R 2 together form a butylene, pentylene or a pentenylene chain which is substituted by an alkyl, in particular a methyl, group or in which two adjacent carbon atoms by one Methylene group can be bridged.
• R 1 and R 2 together form a pentylene or a pentenylene chain which is substituted by a methyl group.
• R 4 represents Ci-C ⁇ - alkenyl or azido.
• R a and R are the same or different and are hydrogen, Ci-C ß- alkyl, -C-C 4 alkoxy, phenyl or a five- or six-membered aromatic heterocycle, the rings optionally being one to three groups R x may be substituted; the meanings hydrogen, alkyl, alkoxy and optionally substituted phenyl are particularly preferred.
• radicals R a and R b are C 1 -C 4 -alkyl, C 2 haloalkyl, C ⁇ -C4-alkoxy-C ⁇ -C 2 -alkyl, C 3 -C 6 -alkenyl -Al- , C 3 -Cg haloalkenyl, C 1 -C 4 alkoxy, Ci-haloalkoxy, pyridyl, pyrazolyl, phenyl or benzyl, or R a and R together form a butylene or pentylene chain, the cyclic groups by up to four substituents from halogen, C 1 -C 4 -alkyl, C 1 -haloalkyl, C 1 -C 4 -alkoxy and / or C 1 -C 4 -alkoxy-C 1 -C 4 -alkyl may be substituted.
• R c is hydrogen
• compounds I in which X represents chlorine, fluorine, methyl, trifluoromethyl or methoxy.
• compounds I are particularly preferred in which one or two substituents X are ortho to the point of attachment to the pyrimidine ring.
• R 1 to R 4 are as defined for formula I and X 1 to X 5 are the same or different and
• X 2 , X 3 , X 4 , X 5 are hydrogen or one of the groups mentioned in X 1 and X 2 .
• X 3 , X, X 5 is hydrogen or one of the groups mentioned in X 1 and X 2 .
• X m is F 5 , 2-C1, 2-F, 2-CH 3 , 2-0CH 3 , 2,6-Cl 2 , 2,6-F 2 , 2-C1 -6-F, 2-Br-6-F, 2-CH 3 -4-Cl, 2-CH 3 -4-F, 2-CH 3 -5-F, 2-CH 3 -6-F, 2 -CH 3 -4-OCH 3 , 2-CF 3 -4-F, 2-CF 3 -5-F, 2-CF 3 -6-F, 2-CF 3 -4-OCH 3 , 2-OCH 3 -6-F, 2,4,6-Cl 3 , 2,3,6-F 3 , 2,4,6-F 3 , 2, 4, 6- (CH 3 ) 3 , 2,6-F 2 -4-CH 3 , 2,6-F 2 -4-OCH 3 , 2, 4-F 2 -6-OCH 3 , 2, 6- (CH 3 ) 2 -4-0CH 3 and 2,6- ( CH 3 ) 2 -4-
• compounds I are preferred in which X m is F 5 , 2,6-Cl 2 . 2,6-F 2 , 2-C1-6-F, 2-CH 3 -4-F, 2-CH 3 -6-F, 2-CH 3 -4-Cl and 2,4,6-F 3 stands.
• the compounds I are suitable as fungicides. They are characterized by excellent activity against a broad spectrum of phytopathogenic fungi, in particular from the class of the Ascomycetes, Deuteromycetes, Phycomycetes and Basidiomycetes. Some of them are systemically effective and can be used in plant protection as leaf and soil fungicides.
• Botrytis cinerea (gray mold) on strawberries, vegetables, ornamental plants and vines, Corynespora cassiicola on cucumbers, Collebotrichum species on fruits and vegetables, Diplocarpon rosae on roses,
• Elsinoe fawcetti and Diaporthe citri on citrus fruits Sphaerotheca on pumpkin plants, strawberries and roses, Cercospora on peanuts, sugar beets and eggplants, Erysiphe cichoracearum on pumpkin plants, Leveillula taurica on bell peppers, tomatoes and aubergines, aubergines and aubergines Japanese apricot, Phyllactinia kakicola, Gloesporium kaki, on Japanese apricot,
• Rhizoctonia species on cotton, rice and lawn Stagonospora nodorum and Septoria tritici on wheat, Uncinula necator on vines,
• the compounds I are also suitable for combating harmful fungi such as Paecilomyces variotii in the protection of materials (for example wood, paper, dispersions for painting, fibers or fabrics) and in the protection of stored products.
• the compounds I are used by treating the fungi or the plants, seeds, materials or the soil to be protected against fungal attack with a fungicidally active amount of the active compounds.
• the application can take place both before and after the infection of the materials, plants or seeds by the fungi.
• the fungicidal compositions generally contain between 0.1 and 95, preferably between 0.5 and 90% by weight of active ingredient.
• the application rates in crop protection are between 0.01 and 2.0 kg of active ingredient per ha.
• active ingredient 0.001 to 0.1 g, preferably 0.01 to 0.05 g, per kg of seed are generally required.
• the amount of active ingredient applied depends on the type of application and the desired effect. Usual application rates in material protection are, for example, 0.001 g to 2 kg, preferably 0.005 g to 1 kg of active ingredient per cubic meter of treated material.
• the compounds I can be converted into the usual formulations, e.g. Solutions, emulsions, suspensions, dusts, powders, pastes and granules.
• the form of application depends on the respective purpose; in any case, it should ensure a fine and uniform distribution of the compound according to the invention.
• the formulations are prepared in a known manner, for example by stretching the active ingredient with solvents and / or carriers, if desired using emulsifiers and dispersants, and if organic diluents are used, other organic solvents can also be used as auxiliary solvents.
• auxiliaries solvents such as aromatics (e.g. xylene), chlorinated aromatics (e.g. chlorobenzenes), paraffins (e.g. petroleum fractions), alcohols (e.g. methanol, butanol), ketones (e.g. cyclohexanone), amines (e.g. Ethanolamine, dimethylformamide) and water;
• Carriers such as natural stone powder (e.g.
• Emulsifiers such as non-ionic and anionic emulsifiers (eg polyoxyethylene fatty alcohol ethers, alkyl sulfonates and aryl sulfonates) and dispersants such as lignin sulfite liquors and methyl cellulose.
• Mineral oil fractions with a medium to high boiling point such as kerosene or diesel oil, are also used to produce directly sprayable solutions, emulsions, pastes or oil dispersions
• Coal tar oils as well as oils of vegetable or animal origin, aliphatic, cyclic and aromatic hydrocarbons, e.g. Benzene, toluene, xylene, paraffin, tetrahydronaphthalene, alkylated naphthalenes or their derivatives, methanol, ethanol, propanol, butanol, chloroform, carbon tetrachloride,, cyclohexanol, cyclohexanone, chlorobenzene, isophorone, strongly polar solvents, e.g. Dimethylformamide, dimethyl sulfoxide, N-methylpyrrolidone, water.
• Benzene toluene, xylene, paraffin, tetrahydronaphthalene, alkylated naphthalenes or their derivatives
• methanol ethanol
• propanol butanol
• chloroform carbon tetrachloride
• Powders, materials for broadcasting and dusts can be prepared by mixing or grinding the active substances together with a solid carrier.
• Granules for example coated granules, impregnated granules and homogeneous granules, can be produced by binding the active ingredients to solid carriers.
• Solid carriers are, for example, mineral earths, such as silica gel, silicas, silica gels, silicates, talc, kaolin, attaclay, 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, ureas and herbal products such as cereal flour, tree bark, wood and nutshell flour, cellulose powder and other solid carriers.
• mineral earths such as silica gel, silicas, silica gels, silicates, talc, kaolin, attaclay, limestone, lime, chalk, bolus, loess, clay, dolomite
• the formulations generally contain between 0.01 and 95% by weight, preferably between 0.1 and 90% by weight, of the active ingredient.
• the active ingredients are used in a purity of 90% to 100%, preferably 95% to 100% (according to the NMR spectrum).
• V. 80 parts by weight of a compound according to the invention are mixed with 3 parts by weight of the sodium salt of diisobutylnaphthalene-alpha-sulfonic acid and 10 parts by weight of the sodium salt
• VIII.20 parts by weight of a compound according to the invention are pulverized with 3 parts by weight of the sodium salt of diisobutylnaphthalene- ⁇ -sulfonic acid, 17 parts by weight of the sodium salt of lignin sulfonic acid from a sulfite waste liquor and 60 parts by weight. deformed silica gel well mixed and ground in a hammer mill. By finely distributing the mixture in 20,000 parts by weight of water, a spray liquor is obtained which contains 0.1% by weight of the active ingredient.
• the active ingredients as such in the form of their formulations or the use forms prepared therefrom, for example in the form of directly sprayable solutions, powders, suspensions or dispersions, emulsions, oil dispersions, pastes, dusts, scattering agents, granules by spraying, atomizing / dusting, atomizing sprinkle or pour.
• the application forms depend entirely on the purposes; in any case, they should ensure the finest possible distribution of the active compounds according to the invention.
• Aqueous application forms can be prepared from emulsion concentrates, pastes or wettable powders (wettable powders, oil dispersions) by adding water.
• emulsions, pastes or oil dispersions the substances as such or dissolved in an oil or solvent can be homogenized in water by means of wetting agents, adhesives, dispersants or emulsifiers.
• the active substance concentrations in the ready-to-use preparations can be varied over a wide range. In general, they are between 0.0001 and 10%, preferably between 0.01 and 1%.
• the active ingredients can also be used with great success in the ultra-low-volume process (ULV), it being possible to apply formulations with more than 95% by weight of active ingredient or even the active ingredient without additives.
• UUV ultra-low-volume process
• Oils of various types, herbicides, fungicides, other pesticides, bactericides can be added to the active compounds, if appropriate also only immediately before use (tank mix). These agents can be added to the agents according to the invention in a weight ratio of 1:10 to 10: 1.
• the agents according to the invention can also be present in the use form as fungicides together with other active ingredients, which e.g. with herbicides, insecticides, growth regulators, fungicides or even with fertilizers. Mixing the compounds I or the compositions containing them in the use form as fungicides with other fungicides results in an enlargement of the fungicidal spectrum of action in many cases.
• Sulfur, dithiocarbamates and their derivatives such as ferridimethyldithiocarbamate, zinc dimethyldithiocarbamate, zinc ethylene bisdithiocarbamate, manganese ethylene bisdithiocarbamate, manganese zinc ethylenediamine bis dithiocarbamate, tetramethylthiurondarbamethyne damidulfide, , Ammonia complex of zinc (N, N'-propylene-bis-dithiocarbamate), zinc (N, N '-propylene-bis-dithiocarbamate), N, N' -polypropylene-bis- (thiocarbamoyl) disulfide;
• Nit or derivatives such as dinitro- (1-methylheptyl) phenyl crotonate, 2-sec-butyl-4, 6-dinitrophenyl-3, 3-dimethylacrylate, 2-sec-butyl-4, 6-dinitrophenyl-isopropyl carbonate, 5 -Nitro-isophthalic acid-di-isopropyl ester; Heterocyclic substances, such as 2-heptadecyl-2-imidazoline acetate, 2-chloro-N- (4'-chloro-biphenyl-2-yl) -nicotinamide, 2,4-di-chloro-6- (o -chloranilino) -s-triazine, 0, O-diethyl-phthalimidophosphonothioate, 5-amino-l- [bis- (dimethylmino) -phosphinyl] -3-phenyl-l, 2,4-triazole, 2
• Anilinopyrimidines such as N- (4, 6-dimethylpyrimidin-2-yl) aniline, N- [4-methyl-6- (l-propynyl) pyrimidin-2-yl] aniline, N- [4-Me- thyl-6-cyclopropyl-pyrimidine ⁇ 2-yl] aniline,
• Phenylpyrroles such as 4- (2,2-difluoro-1,3-benzodioxol-4-yl) pyrrole-3-carbonitrile,
• Cinnamic acid amides such as 3- (4-chlorophenyl) -3- (3,4-dimethoxyphenyl) acrylic morpholide, 3- (4-fluorophenyl) -3- (3,4-dimethoxyphenyl) acrylic morpholide,
• the R 4 groups are bonded to the pyrimidine base via the free valences.
• the groups R 4 can be present as E / Z isomer mixtures.
• the active ingredients were separated or together as a 10% emulsion in a mixture of 70% by weight cyclohexanone, 20% by weight Nekanil® LN (Lutensol® AP6, wetting agent with emulsifying and dispersing action based on ethoxylated alkylphenols) and 10% by weight .-% Wettol® EM (non-ionic emulsifier based on ethoxylated castor oil) prepared and diluted with water according to the desired concentration.
• Nekanil® LN Litensol® AP6, wetting agent with emulsifying and dispersing action based on ethoxylated alkylphenols
• .-% Wettol® EM non-ionic emulsifier based on ethoxylated castor oil
• aqueous active compound preparation which was prepared from a stock solution consisting of 10% active compound, 85% cyclohexanone and 5% emulsifier. 24 hours after the spray coating had dried on, they were inoculated with an aqueous spore suspension of Septoria tri tici. The suspension contained 2.0 x 10 6 spores / ml. The test plants were then placed in a greenhouse at temperatures between 18 and 22 ° C and a relative humidity close to 100%. After 2 weeks, the extent of the development of the disease was determined visually in% infestation of the entire leaf area.
• aqueous active compound preparation which was prepared from a stock solution consisting of 10% active compound, 85% cyclohexanone and 5% emulsifier, and 24 hours after the spray coating had dried on with a aqueous spore suspension of Pyrenophora [syn. Drechslera] teres, the causative agent of net spot disease, inoculated.
• the test plants were then grown in the greenhouse at temperatures between 20 and 24 ° C and 95 to 100% relative humidity. After 6 days, the extent of the development of the disease was determined visually in% infestation of the entire leaf area.
• Example 3 Protective activity against cucumber mildew caused by Sphaerotheca fuliginea
• aqueous active ingredient preparation which was prepared from a stock solution consisting of 10% active ingredient, 85% cyclohexanone and 5% emulsifier. 20 hours after the spray coating had dried on, the plants were inoculated with an aqueous spore suspension of cucumber mildew (Sphaerotheca fuliginea). The plants were then cultivated in a greenhouse at temperatures between 20 and 24 ° C. and 60 to 80% relative atmospheric humidity for 7 days. The extent of mildew development was then determined visually in% of the cotyledon area.

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