Use of 5-pyridin-4-yl-1,3-thiazoles for controlling phytopathogenic fungi

A method for controlling phytopathogenic fungi and for reducing mycotoxins in plants and parts of plants comprising contacting 5-pyridin-4-yl-1,3-thiazoles of the general formula (I)

• in which
• R1 represents hydrogen, represents an optionally hydroxyl-, amino-, cyano-, C1-C4-alkoxy-, R5—, OR5—, (C1-C4-alkyl)sulphanyl-, (C1-C4-alkyl)sulphinyl-, (C1-C4-alkyl)sulphonyl-, (C1-C4-alkyl)amino-, bis(C1-C4-alkyl)amino-, C1-C4-alkylcarbonyloxy- or OCOR5— substituted C1-C8-alkyl, C1-C6-haloalkyl,
• represents an optionally C1-C1-alkyl- or halogen-substituted C3-C8-cycloalkyl,
• represents COR6, COOR6, CON(R6)2, (CH2)mOR6, (CH2)mSR6, (CH2)mSOR6, (CH2)mSO2R6, (CH2)mSON(R6)2, (CH2)mSO2N(R6)2, (CH2)N(R6)2, (CH2)mNR6COR6, (CH2)mCOOR6, (CH2)mCON(R6)2, (CH2)mCOR6, (CH2)mC(NOR6)R6
• represents N(R6)2, NR6(CH2)mCOOR6, N═CR6N(R6)2, NR6COR6, NR6CO(CH2)mOR6, NR6COCH(C1-C4-alkyl)OR6, NR6CO(CH2)mN(R6)2, NR6CO(CH2)mCOOR6, NR6COOR7, NR6CON(R6)2, NR6CO(CH2)mR8, NR6(CH2)mR8
• or
• R1 represents a saturated or partially saturated, five- to seven-membered heterocycle which may contain up to four heteroatoms selected from the group consisting of N, O and S, where two oxygen atoms are not adjacent, and which is unsubstituted or optionally mono- or polysubstituted by oxo, hydroxyl, halogen, C1-C6-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C6-alkylcarbonyl C1-C6-haloalkylcarbonyl, C1-C6-alkoxycarbonyl or by optionally halogen- or C1-C4-alkyl-substituted phenyl
• or
• R1 represents a phenyl radical which is optionally mono- or polysubstituted by identical or different radicals from the group consisting of C1-C4-alkyl, halogen, cyano, C1-C4-haloalkyl, OR6, N(R6)2, SR6, SOR6, S(O)2R6, SO2N(R6)2, COOR6, COR6, C(NOR6)R6, (CH2)mOR6, CON(R6)2, CH═CR6COOR6
• or
• R1 represents a five-membered heteroaromatic which may contain up to three heteroatoms selected from the group consisting of N, O and S, where two oxygen atoms or two nitrogen atoms are not adjacent, and which is optionally mono- or polysubstituted by identical or different radicals from the group consisting of halogen, hydroxyl, cyano, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-alkoxycarbonyl, C1-C4-alkylcarbonyl and phenyl
• or
• R1 represents a six-membered heteroaromatic which may contain up to four heteroatoms selected from the group consisting of N, O and S, where two oxygen atoms are not adjacent, and which is optionally mono- or polysubstituted by halogen, hydroxyl, cyano, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-alkylcarbonyl, C1-C4-alkoxycarbonyl or phenyl;
• R2 represents an aryl radical which is optionally mono- or polysubstituted by identical or different radicals from the group consisting of halogen, cyano, hydroxyl, SF6, nitro, C1-C6-alkyl, C3-C8-cycloalkyl, C1-C4-haloalkyl, C2-C6-alkenyl, C2-C6-alkynyl, OR6, (C1-C4)alkoxy(C1-C4)alkyl, (C1-C2)alkanediylbisoxy, (C1-C2)haloalkanediylbisoxy, C3-C5-alkanediyl, N(R6)2, SR6, COOR6, COR6, C(R6)NOR6, CON(R6)2, CH═CR6COOR6, O(CH2)mCOOR6, NR6COR6, NR6CON(R6)2NR6COO(R7) or optionally halogen-, C1-C4-alkyl-, C1-C4-alkoxy-substituted phenyl
• or
• R2 represents a five- or six-membered heteroaromatic which may contain up to four heteroatoms selected from the group consisting of N, O and S, where two oxygen atoms are not adjacent, and which is optionally mono- or polysubstituted by identical or different radicals from the group consisting of halogen, cyano, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-haloalkyl, phenyl and C3-C8-cycloalkyl;
• R3 represents hydrogen, halogen, cyano, hydroxyl, OR6, cyano, amino, C1-C6-alkyl, C1-C8-haloalkyl, (CH2)mOR6, (CH2)mCN, (CH2)mN(R6)2, COOR6, CON(R6)2, SR6, SOR6, S(O)2R6, N(R6)2, NR6COR6, NR6COOR7, NR6CON(R6)2, NR6SO2R6, N═S(O)(R6)2;
• N═CR6N(R6)2, NR6CO(CH2)mR9 or NR6(CH2)mR9;
• R4 represents hydrogen or C1-C4-alkyl or together with R3 forms, via the pyridine radical to which both are attached, a five- or six-membered mono- or polyunsaturated cycle which may contain a nitrogen atom;
• R5 represents a phenyl radical which is optionally substituted by halogen, hydroxyl, cyano, C1-C4-alkyl, C1-C4-alkoxy, C1-C2-haloalkoxy, C 1-C2-haloalkyl, C1-C4-alkoxycarbonyl, carboxyl;
• R6 independently of one another represent hydrogen, C1-C6-alkyl, optionally C1-C4-alkyl- or halogen-substituted C3-C6-cycloalkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-alkynyl, C1-C4-alkoxy(C1-C4)alkyl, hydroxy(C1-C4)alkyl, represents aryl or aryl(C1-C4)alkyl, each of which is optionally mono- or polysubstituted by identical or different radicals from the group consisting of halogen, cyano, hydroxyl, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-alkylcarbonyl, carboxyl and C1-C4-alkoxycarbonyl,
• or
• represents a 3- to 7-membered saturated or unsaturated cycle which may contain no or up to four heteroatoms selected from the group consisting of N, O and S, where two oxygen atoms are not adjacent, and which is unsubstituted or optionally mono- or polysubstituted by identical or different radicals from the group consisting of halogen, cyano, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-alkylcarbonyl and C1-C4-alkoxycarbonyl,
• or
• if two radicals R6 are attached to a nitrogen atom, two radicals R6 form a 3- to 7-membered saturated or unsaturated cycle which may contain up to four further heteroatoms selected from the group consisting of N, O and S, where two oxygen atoms are not adjacent, and which is unsubstituted or optionally mono- or polysubstituted by identical or different radicals from the group consisting of halogen, cyano, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-alkylcarbonyl and C1-C4-alkoxycarbonyl,
• or
• if two radicals R6 are present in adjacent positions in the grouping NR6COR6, two radicals R6 form a 3- to 7-membered saturated or unsaturated cycle which may contain up to four further heteroatoms selected from the group consisting of N, O and S, where two oxygen atoms are not adjacent, and which is unsubstituted or optionally mono- or polysubstituted by identical or different radicals from the group consisting of halogen, hydroxyl, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy and phenyl,
• or
• if two radicals R6 are attached to a sulphur atom, two radicals R6 form a 5- to 7-membered cycle which may contain up to two further heteroatoms selected from the group consisting of N, O and S, where two oxygen atoms are not adjacent, and which is unsubstituted or optionally C1-C4-alkyl-substituted;
• R7 independently of one another represent C1-C6-alkyl, optionally C1-C4-alkyl- or halogen-substituted C3-C6-cycloalkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-alkynyl, C1-C4-alkoxy(C1-C4)alkyl, hydroxy(C1-C4)alkyl,
• represent aryl or aryl(C1-C4)alkyl, each of which is optionally mono- or polysubstituted by identical or different radicals from the group consisting of halogen, cyano, hydroxyl, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-alkylcarbonyl, carboxyl and C1-C4-alkoxycarbonyl,
• or
• represent a 3- to 7-membered saturated or unsaturated cycle which may contain no or up to four heteroatoms selected from the group consisting of N, O and S, where two oxygen atoms are not adjacent, and which is unsubstituted or optionally mono- or polysubstituted by identical or different radicals from the group consisting of halogen, cyano, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-alkylcarbonyl and C1-C4-alkoxycarbonyl;
• R8 represents a 3- to 7-membered saturated, unsaturated or aromatic mono- or bicycle which may contain no or up to four heteroatoms selected from the group consisting of N, O and S, where two oxygen atoms are not adjacent, and which is optionally substituted by oxo, hydroxyl, halogen, cyano, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, phenyl, carboxyl, C1-C6-alkylcarbonyl or C1-C6-alkoxycarbonyl;
• R9 represents a 3- to 7-membered saturated, unsaturated or aromatic mono- or bicycle which may contain no or up to four heteroatoms selected from the group consisting of N, O and S, where two oxygen atoms are not adjacent, and which is unsubstituted or optionally mono- or polysubstituted by identical or different radicals from the group consisting of C1-C4-alkyl, halogen, cyano, C1-C4-haloalkyl or C1-C4-alkoxy;
• m represents a number from 1 to 6;
• and also the agrochemically active salts thereof, with the fungi, their habitat or both.