Imidazopyrimidine derivatives with sulfur containing phenyl and pyridyl substituents

A compound of formula (I)

• wherein
• A1 is CH or N;
• X is S, SO or SO2;
• R1 is C1-C4alkyl, C1-C4haloalkyl, C3-C6cycloalkyl or C3-C6cycloalkylC1-C4alkyl;
• R2 is halogen, hydroxy, mercapto, C1-C6haloalkyl, C1-C4haloalkylsulfanyl, C1-C4haloalkylsulfinyl, C1-C4haloalkylsulfonyl or C1-C6haloalkoxy;
• R3 is hydrogen, C1-C6alkyl, 2,2-difluoroethyl, 2,2,2-trifluoroethyl, C3-C6cycloalkyl, C3-C6cycloalkylC1-C4alkyl, C3-C6alkenyl, C3-C6alkynyl, C3-C6halocycloalkylC1-C4alkyl, C1-C4alkoxyC1-C4alkyl, C1-C4alkoximinoC1-C4alkyl, C1-C4alkylsulfanylC1-C4alkyl, C1-C4alkylsulfinylC1-C4alkyl, C1-C4alkylsulfonylC1-C4alkyl, C1-C6cyanoalkyl, aminocarbonylC1-C4alkyl, C1-C4alkylaminocarbonylC1-C4alkyl, di(C1-C4alkyl)aminocarbonylC1-C4alkyl, hydroxycarbonylC1-C4alkyl, C1-C4alkoxycarbonylC1-C4alkyl, C1-C6cyanohaloalkyl, aminocarbonylC1-C4haloalkyl, hydroxycarbonylC1-C4haloalkyl, C1-C4alkoxycarbonylC1-C4haloalkyl, C1-C4alkoxycarbonimidoyl, C1-C4alkylsulfonyl, C1-C4haloalkylsulfonyl;
• or R3 is a four- to six-membered heterocyclic ring system which can be partially saturated or fully saturated, said ring system contains 1 to 2 heteroatoms selected from the group consisting of nitrogen, oxygen and sulfur, and said ring system can be mono- or polysubstituted by substituents selected from the group consisting of halogen, cyano, C1-C4alkoxy, C1-C4haloalkyl and oxo;
• wherein the sulfur can be present in the oxidation states of 0, 1 or 2;
• R4 is hydrogen, halogen or C1-C4alkyl;
• and
• R5 is hydrogen, halogen or C1-C4alkyl;
• or an agrochemically acceptable salt, stereoisomer, enantiomer, tautomer or N-oxide of a compound of formula (I).