Spiro-condensed indoline derivatives as pesticides

A method of combating and 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:

• wherein Y is a single bond, C═O, C═S or S(O)m where m is 0, 1 or 2;
• R1 is hydrogen, optionally substituted C1-6 alkyl, C1-6 cyanoalkyl, C1-6 haloalkyl, C3-7 cycloalkyl(C1-4alkyl, C1-6 alkoxy(C1-6)alkyl, heteroaryl(C1-6)alkyl (wherein the heteroaryl group may be optionally substituted by halo, nitro, cyano, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy, C1-6 haloalkoxy, C1-6 alkylsulfonyl, C1-6 alkylsulfinyl, C1-6 alkylthio, C1-6 alkoxycarbonyl, C1-6 alkylcarbonylamino, arylcarbonyl, or two adjacent positions on the heteroaryl system may be cyclised to form a 5, 6 or 7 membered carbocyclic or heterocyclic ring, itself optionally substituted with halogen), aryl(C1-6)alkyl (wherein the aryl group may be optionally substituted by halo, nitro, cyano, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy, C1-6 haloalkoxy, C1-6 alkylsulfonyl, C1-6 alkylsulfinyl, C1-6 alkylthio, C1-6 alkoxycarbonyl, C1-6 alkylcarbonylamino, arylcarbonyl, or two adjacent positions on the aryl system may be cyclised to form a 5, 6 or 7 membered carbocyclic or heterocyclic ring, itself optionally substituted with halogen), C1-6 alkylcarbonylamino(C1-6)alkyl, aryl (which may be optionally substituted by halo, nitro, cyano, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy, C1-6 haloalkoxy, C1-6 alkylsulfonyl, C1-6 alkylsulfinyl, C1-6 alkylthio, C1-6 alkoxycarbonyl, C1-6 alkylcarbonylamino, arylcarbonyl, or two adjacent positions on the aryl system may be cyclised to form a 5, 6 or 7 membered carbocyclic or heterocyclic ring, itself optionally substituted with halogen), heteroaryl (which may be optionally substituted by halo, nitro, cyano, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy, C1-6 haloalkoxy, C1-6 alkylsulfonyl, C1-6 alkylsulfinyl, C1-6 alkylthio, C1-6 alkoxycarbonyl, C1-6 alkylcarbonylamino, arylcarbonyl, or two adjacent positions on the heteroaryl system may be cyclised to form a 5, 6 or 7 membered carbocyclic or heterocyclic ring, itself optionally substituted with halogen), C1-6 alkoxy, C1-6 haloalkoxy, phenoxy (wherein the phenyl group is optionally substituted by halogen, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, CN, NO2, aryl, heteroaryl, amino or dialkylamino), heteroaryloxy (optionally substituted by halo, nitro, cyano, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy or C1-6 haloalkoxy), heterocyclyloxy (optionally substituted by halo, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy or C1-6 haloalkoxy), cyano, C2-6 alkenyl, C2-6 alkynyl, C3-6 cycloalkyl, C5-7 cycloalkenyl, heterocyclyl (optionally substituted by halo, nitro, cyano, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy or C1-6 haloalkoxy), C1-6 alkylthio, C1-6 haloalkylthio or NR13R14 where R13 and R14 are independently hydrogen, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy(C1-6)alkyl, phenyl (which may be optionally substituted by halogen, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, CN, NO2, aryl, heteroaryl, amino, dialkylamino or C1-4 alkoxycarbonyl), phenyl (C1-6)alkyl (wherein the phenyl group may be optionally substituted by halogen, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, CN, NO2, aryl, heteroaryl, amino, dialkylamino, C1-6 alkylsulfonyl, C1-6 alkoxycarbonyl, or two adjacent positions on the phenyl ring may be cyclised to form a 5, 6 or 7 membered carbocyclic or heterocyclic ring, itself optionally substituted with halogen), heteroaryl (C1-6)alkyl (wherein the heteroaryl group may be optionally substituted by halo, nitro, cyano, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy, C1-6 haloalkoxy, C1-6 alkylsulfonyl, C1-6 alkylsulfinyl, C1-6 alkylthio, C1-6 alkoxycarbonyl, C1-6 alkylcarbonylamino, arylcarbonyl, or two adjacent positions on the heteroaryl system may be cyclised to form a 5, 6 or 7 membered carbocyclic or heterocyclic ring, itself optionally substituted with halogen) or heteroaryl (which may be optionally substituted by halo, nitro, cyano, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy or C1-6 haloalkoxy, C1-4 alkoxycarbonyl C1-6 alkylcarbonylamino, phenyloxycarbonylamino (wherein the phenyl group is optionally substituted by halogen, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, CN, NO2, aryl, heteroaryl, amino or dialkylamino), amino, C1-6 alkylamino or phenylamino (wherein the phenyl group is optionally substituted halogen, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, CN, NO2, aryl, heteroaryl, amino or dialkylamino));
• R2 and R3 are independently hydrogen, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy or cyano;
• each R4 is independently halogen, cyano, C1-8 alkyl, C1-8 haloalkyl, C1-6 cyanoalkyl, C1-6 alkoxy(C1-6)alkyl, C3-7 cycloalkyl(C1-6)alkyl, C5-6 cycloalkenyl(C1-6)alkyl, C3-6 alkenyloxy(C1-6)alkyl, C3-6 alkynyloxy(C1-6)alkyl, aryloxy(C1-6)alkyl, C1-6 carboxyalkyl, C1-6 alkylcarbonyl(C1-6)alkyl, C2-6 alkenylcarbonyl(C1-6)alkyl, C2-6 alkynylcarbonyl(C1-6)-alkyl, C1-6 alkoxycarbonyl(C1-6)alkyl, C3-6 alkenyloxycarbonyl(C1-6)alkyl, C3-6 alkynyloxycarbonyl(C1-6)alkyl, aryloxycarbonyl(C1-6)alkyl, C1-6 alkylthio(C1-6)alkyl, C1-6 alkylsulfinyl(C1-6)alkyl, C1-6 alkylsulfonyl(C1-6)alkyl, aminocarbonyl(C1-6)alkyl, C1-6 alkylaminocarbonyl(C1-6)alkyl, di(C1-6)alkylaminocarbonyl(C1-6)alkyl, phenyl(C1-4)alkyl (wherein the phenyl group is optionally substituted by halogen, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, CN, NO2, aryl, heteroaryl, amino or dialkylamino), heteroaryl(C1-4)alkyl (wherein the heteroaryl group is optionally substituted by halo, nitro, cyano, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy or C1-6 haloalkoxy), heterocyclyl(C1-4)alkyl (wherein the heterocyclyl group is optionally substituted by halo, nitro, cyano, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy or C1-6 haloalkoxy), C2-6 alkenyl, aminocarbonyl(C2-6)alkenyl, C1-6 alkylaminocarbonyl(C2-6)alkenyl, di(C1-6)alkylaminocarbonyl(C2-6)alkenyl, phenyl(C2-4)-alkenyl, (wherein the phenyl group is optionally substituted by halogen, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, CN, NO2, aryl, heteroaryl, amino or dialkylamino), C2-6 alkynyl, trimethylsilyl(C2-6)alkynyl, aminocarbonyl(C2-6)alkynyl, C1-6 alkylaminocarbonyl(C2-6)alkynyl, di(C1-6)alkylaminocarbonyl(C2-6)alkynyl, C1-6 alkoxycarbonyl, C3-7 cycloalkyl, C3-7 halocycloalkyl, C3-7 cyanocycloalkyl, C1-3 alkyl(C3-7)-cycloalkyl, C1-3 alkyl(C3-7)halocycloalkyl, phenyl (optionally substituted by halogen, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, CN, NO2, aryl, heteroaryl, amino or dialkylamino), heteroaryl (optionally substituted by halo, nitro, cyano, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy or C1-6 haloalkoxy), heterocyclyl (wherein the heterocyclyl group is optionally substituted by halo, nitro, cyano, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy or C1-6 haloalkoxy), or 2 adjacent groups R4 together with the carbon atoms to which they are attached form a 4, 5, 6 or 7 membered carbocylic or heterocyclic ring which may be optionally substituted by halogen, C1-8 alkoxy, C1-6 haloalkoxy, phenoxy (optionally substituted by halo, nitro, cyano, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy or C1-6 haloalkoxy), heteroaryloxy (optionally substituted by halo, nitro, cyano, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy or C1-6 haloalkoxy), C1-8 alkylthio or R19R20N where R19 and R20 are, independently, hydrogen, C1-8 alkyl, C3-7 cycloalkyl, C3-6 alkenyl, C3-6 alkynyl, C2-6 haloalkyl, C1-6 alkoxycarbonyl or R19 and R20 together with the N atom to which they are attached form a five, six or seven-membered heterocyclic ring which may contain one or two further heteroatoms selected from 0, N or S and which may be optionally substituted by one or two C1-6 alkyl groups;
• n is 0, 1, 2 or 3;
• each Ra is independently hydrogen, halo, cyano, C1-3 alkyl, hydroxy or two Ra groups together with the carbon atom to which they are attached form a carbonyl group;
• p is 1 or 2 and q is 2 or 3;
• provided that when p is 2 then q is not 2;
• R8 is C1-10 alkyl, C1-10 haloalkyl, aryl(C1-6)alkyl (wherein the aryl group is optionally substituted by halogen, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, CN, NO2, aryl, heteroaryl, amino or dialkylamino), heteroaryl(C1-6)alkyl (wherein the heteroaryl group is optionally substituted by halogen, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, CN, NO2, aryl, heteroaryl, amino or dialkylamino), arylcarbonyl-(C1-6)alkyl (wherein the aryl group may be optionally substituted by halogen, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, CN, NO2, aryl, heteroaryl, amino or dialkylamino and the alkyl group may be optionally substituted by aryl), C2-8 alkenyl, C2-8 haloalkenyl, aryl(C2-6)-alkenyl (wherein the aryl group is optionally substituted halogen, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, CN, NO2, aryl, heteroaryl, amino or dialkylamino, C1-6 alkoxycarbonyl, or two adjacent substituents can cyclise to form a 5, 6 or 7 membered carbocyclic or heterocyclic ring), heteroaryl(C2-6)-alkenyl (wherein the heteroaryl group is optionally substituted halogen, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, CN, NO2, aryl, heteroaryl, amino or dialkylamino, C1-6 alkoxycarbonyl, or two adjacent substituents can cyclise to form a 5, 6 or 7 membered carbocyclic or heterocyclic ring), C2-6 alkynyl, phenyl(C2-6)alkynyl (wherein the phenyl group is optionally substituted by halogen, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, CN, NO2, aryl, heteroaryl, amino or dialkylamino), C3-7 cycloalkyl, C1-6 alkoxycarbonyl, C1-6 alkylcarbonyl, C1-6 haloalkylcarbonyl or aryl(C2-6)alkenylcarbonyl (wherein the aryl group may be optionally substituted halogen, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, CN, NO2, aryl, heteroaryl, amino or dialkylamino), or —C(R51)(R52)—[CR53═CR54]z-R55 where z is 1 or 2, R51 and R52 are each independently H, halo or C1-2 alkyl, R53 and R54 are each independently H, halogen, C1-4 alkyl or C1-4 haloalkyl and R55 is aryl (wherein the aryl group may be optionally substituted by one or more substituents independently selected from halogen, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy(C1-6)alkyl, C1-6 alkoxy, C1-6 haloalkoxy, C1-6 alkylthio, C1-6 haloalkylthio, C1-6 alkylsulfinyl, C1-6 haloalkylsulfinyl, C1-6 alkylsulfonyl, C1-6 haloalkylsulfonyl, C2-6 alkenyl, C2-6 haloalkenyl, C2-6 alkynyl, C3-7 cycloalkyl, nitro, cyano, CO2H, C1-6 alkylcarbonyl, C1-6 alkoxycarbonyl, aryl, heteroaryl, R25R26N or R27R28NC(O);
• wherein R25, R26, R27 and R28 are, independently, hydrogen or C1-6 alkyl) or heteroaryl (wherein the heteroaryl group may be optionally substituted by one or more substituents independently selected from halogen, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy(C1-6)alkyl, C1-6 alkoxy, C1-6 haloalkoxy, C1-6 alkylthio, C1-6 haloalkylthio, C1-6 alkylsulfinyl, C1-6 haloalkylsulfinyl, C1-6 alkylsulfonyl, C1-6 haloalkylsulfonyl, C2-6 alkenyl, C2-6 haloalkenyl, C2-6 alkynyl, C3-7 cycloalkyl, nitro, cyano, CO2H, C1-6 alkylcarbonyl, C1-6 alkoxycarbonyl, aryl, heteroaryl, R25R26N or R27R28NC(O);
• wherein R25, R26, R27 and R28 are, independently, hydrogen or C1-6 alkyl);
• or salts or N-oxides thereof.