Pesticidally active heterocyclic derivatives with sulfur containing substituents

A compound of formula (I):

• wherein
• Q is a radical selected from the group consisting of formula Qa, Qb and Qc,
• wherein the arrow denotes the point of attachment to the nitrogen atom of the tricyclic ring;
• and wherein A represents CH or N;
• X is S, SO, or SO2;
• R1 is C1-C4alkyl, or C3-C6cycloalkyl-C1-C4alkyl;
• Q1 is hydrogen, halogen, C1-C6haloalkyl, C3-C6cycloalkyl, C3-C6cycloalkyl monosubstituted by cyano, C1-C6cyanoalkyl, C1-C6cyanoalkoxy, C1-C6haloalkoxy, —N(R3)2, —N(R3)C(═O)R4, —N(R3)CON(R3)2, (oxazolidin-2-one)-3-yl, or 2-pyridyloxy;
• or
• Q1 is a five- to six-membered aromatic or heteroaromatic ring system, linked via a ring carbon atom to the ring which contains the substituent A, said ring system is unsubstitued or is mono- or polysubstituted by substituents selected from the group consisting of halogen, cyano, C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxy, C1-C4haloalkoxy, C1-C4alkylsulfanyl, C1-C4alkylsulfinyl and C1-C4alkylsulfonyl;
• and said ring system can contain 1, 2 or 3 ring heteroatoms selected from the group consisting of nitrogen, oxygen and sulfur, where said ring system may not contain more than one ring oxygen atom and may not contain more than one ring sulfur atom;
• or
• Q1 is a five-membered heteroaromatic ring system linked via a ring nitrogen atom to the ring which contains the substituent A, said ring system is unsubstituted or is mono- or polysubstituted by substituents selected from the group consisting of halogen, cyano, C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxy, C1-C4haloalkoxy, C1-C4alkylsulfanyl, C1-C4alkylsulfinyl and C1-C4alkylsulfonyl;
• and said ring system contains 1, 2 or 3 ring heteroatoms selected from the group consisting of nitrogen, oxygen and sulfur, where said ring system contains at least one ring nitrogen atom and may not contain more than one ring oxygen atom and may not contain more than one ring sulfur atom;
• R2 is hydrogen or C1-C4alkyl;
• each R3 independently is hydrogen, C1-C4alkyl, C1-C6haloalkyl or C3-C6cycloalkyl;
• R5 is C1-C4alkyl;
• R6 is hydrogen, halogen, C1-C4alkyl, C1-C6haloalkyl, C3-C6cycloalkyl, C3-C6cycloalkyl monosubstituted by cyano, C1-C6cyanoalkyl, C1-C6alkoxy, C1-C6haloalkoxy, —CO(NR3R4), —NR3COR4, (C3-C5)cycloalkyl-(C1-C6)alkyl-, (C3-C5)cycloalkyl monosubstituted by cyano-(C1-C6)alkyl-;
• or
• R6 is a five- to six-membered saturated, partially saturated, or heteroaromatic ring system, linked via a ring nitrogen atom to the imidazole ring which is connected to the substitutent R5, said ring system is unsubstitued or is mono- or polysubstituted by substituents selected from the group consisting of halogen, cyano, C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxy, C1-C4haloalkoxy, C1-C4alkylsulfanyl, C1-C4alkylsulfinyl and C1-C4alkylsulfonyl;
• C3-C6cycloalkyl, C3-C6cycloalkyl monosubstituted by cyano, C1-C6cyanoalkyl, (C3-C5)cycloalkyl-(C1-C6)alkyl-, (C3-C5)cycloalkyl monosubstituted by cyano-(C1-C6)alkyl-, and said ring system contains 1, 2 or 3 ring heteroatoms selected from the group consisting of nitrogen, oxygen and sulfur, where said ring system contains at least one ring nitrogen atom and may not contain more than one ring oxygen atom and may not contain more than one ring sulfur atom;
• or R6 is a five- to six-membered saturated, partially saturated, aromatic or heteroaromatic ring system linked via a ring carbon atom to the imidazole ring which is connected to the substitutent R5, said ring system is unsubstituted or is mono- or polysubstituted by substituents selected from the group consisting of halogen, cyano, C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxy, C1-C4haloalkoxy, C1-C4alkylsulfanyl, C1-C4alkylsulfinyl and C1-C4alkylsulfonyl;
• C3-C6cycloalkyl, C3-C6cycloalkyl monosubstituted by cyano, C1-C6cyanoalkyl, (C3-C5)cycloalkyl-(C1-C6)alkyl-, (C3-C5)cycloalkyl monosubstituted by cyano-(C1-C6)alkyl-, and said ring system can contain 1, 2 or 3 ring heteroatoms selected from the group consisting of nitrogen, oxygen and sulfur, where said ring system may not contain more than one ring oxygen atom and may not contain more than one ring sulfur atom;
• and
• R4 is C3-C6cycloalkyl-C1-C4alkyl, C1-C6haloalkyl, C1-C6haloalkoxy or C3-C6cycloalkyl;
• or an agrochemically acceptable salt, stereoisomer, enantiomer, tautomer or N-oxide of a compound of formula I.