Dihydrofuran derivatives as insecticidal compounds

1. A compound of formula (I)

wherein

Q is Q1 or Q2

P is P1, pyrazolyl, triazolyl, or pyrazolyl substituted by one to five Z, or triazolyl substituted by one to five Z;

A 1 is C—R 5 , A 2 is C—H, A 3 is C—H or nitrogen and A 4 is C—H or nitrogen;

G 1 is oxygen or sulfur;

Y 1 is CH 2 or C═O;

R 1 is hydrogen, C 1 -C 8 alkyl, C 1 -C 8 alkoxy-, C 1 -C 8 alkylcarbonyl-, or C 1 -C 8 alkoxycarbonyl-;

R 2 is C 1 -C 8 alkyl or C 1 -C 8 alkyl substituted by one to five R 6 , C 3 -C 10 cycloalkyl or C 3 -C 10 cycloalkyl substituted by one to five R 7 , aryl-C 1 -C 4 alkylene- or aryl-C 1 -C 4 alkylene- wherein the aryl moiety is substituted by one to five R 8 , heterocyclyl-C 1 -C 4 alkylene- or heterocyclyl-C 1 -C 4 alkylene- wherein the heterocyclyl moiety is substituted by one to five R 8 , aryl or aryl substituted by one to five R 8 , heterocyclyl or heterocyclyl substituted by one to five R 8 , C 1 -C 8 alkylaminocarbonyl-C 1 -C 4 alkylene, C 1 -C 8 haloalkylaminocarbonyl-C 1 -C 4 alkylene, C 3 -C 8 cycloalkyl-aminocarbonyl-C 1 -C 4 alkylene, C 1 -C 6 alkyl-O—N═CH—, C 1 -C 6 haloalkyl-O—N═CH—,

R 3 is C 1 -C 8 haloalkyl;

R 4 is phenyl or phenyl substituted by one to five R 9 ;

each R 5 is independently halogen, cyano, nitro, C 1 -C 8 alkyl, C 1 -C 8 haloalkyl, C 1 -C 8 alkenyl, C 1 -C 8 haloalkenyl, C 1 -C 8 alkynyl, C 1 -C 8 haloalkynyl, C 3 -C 10 cycloalkyl, C 1 -C 8 alkoxy-, C 1 -C 8 haloalkoxy-, C 1 -C 8 alkylthio-, C 1 -C 8 haloalkylthio-, C 1 -C 8 alkylsulfinyl-, C 1 -C 8 haloalkylsulfinyl-, C 1 -C 8 alkylsulfonyl-, or C 1 -C 8 haloalkylsulfonyl-;

each R 6 is independently halogen, cyano, nitro, hydroxy, amino, C 1 -C 8 alkylamino, (C 1 -C 8 alkyl) 2 amino, C 1 -C 8 alkylcarbonylamino, C 1 -C 8 haloalkylcarbonylamino, C 1 -C 8 alkoxy-, C 1 -C 8 haloalkoxy-, aryloxy or aryloxy substituted by one to five R 10 , aryloxy-C 1 -C 4 alkylene or aryloxy-C 1 -C 4 alkylene wherein the aryl moiety is substituted by one to five R 10 , C 1 -C 8 alkylcarbonyl-, C 1 -C 8 alkoxycarbonyl-, mercapto, C 1 -C 8 alkylthio-, C 1 -C 8 haloalkylthio-, C 1 -C 8 alkylsulfinyl-, C 1 -C 8 haloalkylsulfinyl-, C 1 -C 8 alkylsulfonyl-, C 1 -C 8 haloalkylsulfonyl-, aryl-C 1 -C 4 alkylthio- or aryl-C 1 -C 4 alkylthio- wherein the aryl moiety is substituted by one to five R 10 ;

each R 7 is independently halogen, C 1 -C 8 alkyl, C 1 -C 8 alkenyl, C 1 -C 8 alkynyl, C 1 -C 8 alkyl-O—N═, C 1 -C 8 haloalkyl-O—N═; C 1 -C 8 alkoxy, C 1 -C 8 akoxycarbonyl;

each R 8 is independently halogen, cyano, nitro, oxo, C 1 -C 8 alkyl, C 1 -C 8 haloalkyl, C 1 -C 8 cyanoalkyl, C 2 -C 8 alkenyl, C 2 -C 8 haloalkenyl, C 2 -C 8 alkynyl, C 2 -C 8 haloalkynyl, C 3 -C 10 cycloalkyl, C 3 -C 10 cycloalkyl-C 1 -C 4 alkylene, hydroxy, C 1 -C 8 alkoxy-, C 1 -C 8 haloalkoxy-, mercapto, C 1 -C 8 alkylthio-, C 1 -C 8 haloalkylthio-, C 1 -C 8 alkylsulfinyl-, C 1 -C 8 haloalkylsulfinyl-, C 1 -C 8 alkylsulfonyl-, C 1 -C 8 haloalkylsulfonyl-, C 1 -C 8 alkylaminosulfonyl, (C 1 -C 8 alkyl) 2 aminosulfonyl-, C 1 -C 8 alkylcarbonyl-, C 1 -C 8 alkoxycarbonyl-, aryl or aryl substituted by one to five R 10 , heterocyclyl or heterocyclyl substituted by one to five R 10 , aryl-C 1 -C 4 alkylene or aryl-C 1 -C 4 alkylene wherein the aryl moiety is substituted by one to five R 10 , heterocyclyl-C 1 -C 4 alkylene or heterocyclyl-C 1 -C 4 alkylene wherein the heterocyclyl moiety is substituted by one to five R 10 , aryloxy or aryloxy substituted by one to five R 10 , aryloxy-C 1 -C 4 alkylene or aryloxy-C 1 -C 4 alkylene wherein the aryl moiety is substituted by one to five R 10 ;

each R 9 is independently halogen, cyano, nitro, C 1 -C 8 alkyl, C 1 -C 8 haloalkyl, C 2 -C 8 alkenyl, C 2 -C 8 haloalkenyl, C 2 -C 8 alkynyl, C 2 -C 8 haloalkynyl, hydroxy, C 1 -C 8 alkoxy-, C 1 -C 8 haloalkoxy-, mercapto, C 1 -C 8 alkylthio-, C 1 -C 8 haloalkylthio-, C 1 -C 8 alkylsulfinyl-, C 1 -C 8 haloalkylsulfinyl-, C 1 -C 8 alkylsulfonyl-, C 1 -C 8 haloalkylsulfonyl-, C 1 -C 8 alkylcarbonyl-, C 1 -C 8 alkoxycarbonyl-, aryl or aryl substituted by one to five R 10 , or heterocyclyl or heterocyclyl substituted by one to five R 10 ;

each R 10 is independently halogen, cyano, nitro, C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 1 -C 4 alkoxy-, or C 1 -C 4 haloalkoxy-;

each Z is independently halogen, C 1 -C 12 alkyl or C 1 -C 12 alkyl substituted by one to five R 6 , nitro, C 1 -C 12 alkoxy or C 1 -C 12 alkoxy substituted by one to five R 6 , cyano, C 1 -C 12 alkylsulfinyl, C 1 -C 12 alkylsulfonyl, C 1 -C 12 haloalkylsulfinyl, C 1 -C 12 haloalkylsulfonyl, hydroxyl or thiol;

or a salt or N-oxide thereof.

2. A compound according to claim 1 wherein G 1 is oxygen.

3. A compound according to claim 1 wherein R 1 is hydrogen, methyl, ethyl, methylcarbonyl-, or methoxycarbonyl-.

4. A compound according to claim 1 wherein R 2 is C 1 -C 8 alkyl or C 1 -C 8 alkyl substituted by one to five R 6 , C 3 -C 10 cycloalkyl or C 3 -C 10 cycloalkyl substituted by one to five R 7 , aryl-C 1 -C 4 alkylene- or aryl-C 1 -C 4 alkylene- wherein the aryl moiety is substituted by one to five R 8 , heterocyclyl-C 1 -C 4 alkylene- or heterocyclyl-C 1 -C 4 alkylene- wherein the heterocyclyl moiety is substituted by one to five R 8 , aryl or aryl substituted by one to five R 8 , heterocyclyl or heterocyclyl substituted by one to five R 8 , C 1 -C 8 alkylaminocarbonyl-C 1 -C 4 alkylene, C 1 -C 8 haloalkylaminocarbonyl-C 1 -C 4 alkylene, C 3 -C 8 cycloalkyl-aminocarbonyl-C 1 -C 4 alkylene, or group A

R 11 is hydrogen, methyl, ethyl, propyl, isopropyl, butyl, cyclopropyl, cyclopropyl-methyl, cyclobutyl, cyclobutyl-methyl, oxetanyl, thietanyl, trifluoroethyl, difluoroethyl, allyl, propargyl, cyanomethyl, benzyl, benzyl substituted by one to three R 12 , or R 11 is pyridyl-methyl- or pyridyl-methyl-substituted by one to three R 12 ;

each R 12 is independently fluoro, chloro, bromo, trifluoromethyl, trifluoromethoxy, cyano or methoxy;

wherein each aryl group is a phenyl group and each heterocyclyl group is independently selected from pyridyl, pyridazinyl, pyrimidinyl, pyrazinyl, pyrrolyl, pyrazolyl, imidazolyl, triazolyl, tetrahydrothiophenyl, tetrazolyl, furanyl, thiophenyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiadiazolyl, quinolinyl, cinnolinyl, quinoxalinyl, indolyl, indazolyl, benzimidazolyl, benzothiophenyl, benzothiazolyl, oxetanyl, thietanyl, oxo-thietanyl, dioxo-thietanyl, pyrrolidinyl, tetrahydrofuranyl, [1,3]dioxolanyl, piperidinyl, piperazinyl, [1,4]dioxanyl, and morpholinyl, 2,3-dihydro-benzofuranyl, benzo[1,3]dioxolanyl, and 2,3-dihydro-benzo[1,4]dioxinyl.

5. A compound according to claim 4 wherein R 2 is C 1 -C 8 alkyl or C 1 -C 8 alkyl substituted by one to five R 6 , C 3 -C 10 cycloalkyl or C 3 -C 10 cycloalkyl substituted by one to five R 7 , phenyl-C 1 -C 4 alkylene- or phenyl-C 1 -C 4 alkylene- wherein the phenyl moiety is substituted by one to five R 8 , pyridyl-C 1 -C 4 alkylene- or pyridyl-C 1 -C 4 alkylene- wherein the pyridyl moiety is substituted by one to four R 8 , oxetanyl or oxetanyl substituted by one to five R 8 , thietanyl-C 1 -C 4 alkylene or thietanyl-C 1 -C 4 alkylene wherein the thietanyl moiety is substituted by one to five R 8 , oxo-thietanyl-C 1 -C 4 alkylene or oxo-thietanyl-C 1 -C 4 alkylene wherein the oxo-thietanyl moiety is substituted by one to five R 8 , dioxo-thietanyl-C 1 -C 4 alkylene or dioxo-thietanyl-C 1 -C 4 alkylene wherein the dioxo-thietanyl moiety is substituted by one to five R 8 , thietanyl or thietanyl substituted by one to five R 8 , oxo-thietanyl or oxo-thietanyl substituted by one to five R 8 , dioxo-thietanyl or dioxo-thietanyl substituted by one to five R 8 , C 1 -C 8 alkylaminocarbonyl-C 1 -C 4 alkylene, C 1 -C 8 haloalkylaminocarbonyl-C 1 -C 4 alkylene, or C 3 -C 8 cycloalkyl-aminocarbonyl-C 1 -C 4 alkylene or group A

6. A compound according to claim 1 wherein R 3 is chlorodifluoromethyl or trifluoromethyl.

7. A compound according to claim 1 , wherein

P is P1;

Q is Q1 or Q2;

A 1 is C—R 5 , A 2 is C—H, A 3 is C—H and A 4 is C—H;

G 1 is oxygen;

Y 1 is CH 2 ;

R 1 is hydrogen;

R 2 is C 1 -C 8 alkyl or C 1 -C 8 alkyl substituted by one to three halogen atoms, C 3 -C 10 cycloalkyl or C 3 -C 10 cycloalkyl substituted by one or two groups independently selected from fluoro and methyl, phenyl-C 1 -C 4 alkylene- or phenyl-C 1 -C 4 alkylene- wherein the phenyl moiety is substituted by one to five R 8 , pyridyl-C 1 -C 4 alkylene- or pyridyl-C 1 -C 4 alkylene- wherein the pyridyl moiety is substituted by one to four R 8 , thietanyl, oxo-thietanyl, dioxo-thietanyl, C 1 -C 4 alkylaminocarbonyl-C 1 -C 4 alkylene, C 1 -C 4 haloalkylaminocarbonyl-C 1 -C 4 alkylene, C 3 -C 6 cycloalkyl-aminocarbonyl-C 1 -C 4 alkylene, or group A

R 3 is trifluoromethyl;

R 4 is 3,5-dichloro-phenyl;

R 5 is methyl;

each R 8 is independently bromo, chloro, fluoro, cyano or methyl;

R 11 is methyl, ethyl or trifluoroethyl.

8. A method of controlling insects, acarines, nematodes or molluscs which comprises applying to a pest, to a locus of a pest, or to a plant susceptible to attack by a pest an insecticidally, acaricidally, nematicidally or molluscicidally effective amount of a compound of formula (I) as defined in claim 1 .

9. An insecticidal, acaricidal, nematicidal or molluscicidal composition comprising an insecticidally, acaricidally, nematicidally or molluscicidally effective amount of a compound of formula (I) as defined in claim 1 .

10. An insecticidal, acaricidal, nematicidal or molluscicidal composition according to claim 9 comprising at least one additional compound having biological activity.

11. A combination product comprising a pesticidally effective amount of a component A and a pesticidally effective amount of component B, wherein component A is a compound of formula (I) as defined in claim 1 , and compound B is imidacloprid, enrofloxacin, praziquantel, pyrantel embonate, febantel, penethamate, moloxicam, cefalexin, kanamycin, pimobendan, clenbuterol, fipronil, ivermectin, omeprazole, tiamulin, benazepril, milbemycin, cyromazine, thiamethoxam, pyriprole, deltamethrin, cefquinome, florfenicol, buserelin, cefovecin, tulathromycin, ceftiour, selamectin, carprofen, metaflumizone, moxidectin, methoprene (including S-methoprene), clorsulon, pyrantel, amitraz, triclabendazole, avermectin, abamectin, emamectin, eprinomectin, doramectin, selamectin, nemadectin, albendazole, cambendazole, fenbendazole, flubendazole, mebendazole, oxfendazole, oxibendazole, parbendazole, tetramisole, levamisole, pyrantel pamoate, oxantel, morantel, triclabendazole, epsiprantel, fipronil, lufenuron, ecdysone or tebufenozide.