The invention relates to novel N-phenyl-4-(4-pyridyl)-2-pyrimidineamine derivatives of the general formula (I) wherein the sum of (m+p) together is 0, 1, 2 or 3; n and q are independently of each other 0 or 1, and the sum of (m+p+q) together is 1, 2, 3 or 4; R1 is hydrogen, halogen, alkoxy, haloalkyl, haloalkoxy or alkyl; R2 is hydrogen, C1–C6-alkyl, C1–C6-haloalkyl or C1–C6-alkoxy; R2A is hydrogen, C1–C6-alkyl, C3–C4-alkenyl or C3–C4-alkynyl; each of R3, R4, R5 and R6 is, independently of the others, hydrogen, C1–C6-alkyl, C1–C6-haloalkyl, hydroxy-C1–C6-alkyl or C1–C6-alkoxy-C1–C6-alkyl, or the ring members CR3R4 or CR5R6 or CR2R2A are independently of each other a carbonyl group (C═O) or a group C═S; X is C═O, C═S, S═O or O═S═O; Y is O, S, C═O, CH2, —N(R8)—, —O—N(R8)—, —N(R8)—O— or NH—; R7 is hydrogen, C1–C4-alkyl, C3–C4-alkenyl, C3–C4-alkynyl, —CH2OR8, CH2SR8, —C(O)R8, —C(O)OR8, SO2R8, SOR8 or SR8; and R8 is C1–C8-alkyl, C1–C8-alkoxyalkyl, C1–C8 haloalkyl or phenylC1–C2-alkyl wherein the phenyl may be substituted by up to three groups selected from halo or C1–C4-alkyl; or a salt thereof. The invention also relates to the preparation of the compounds and to agrochemical compositions comprising at least one of those compounds as active ingredient as well as the preparation of the said compositions and to the use of the compounds or of the compositions in controlling or preventing the infestation of plants by phytopathogenic microorganisms, especially fungi.
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