The invention provides novel compounds of formula (I) having nematicidal, insecticidal, acaricidal and fungicidal properties, compositions comprising them and processes and intermediates for their preparation: STR1 wherein R1 is --S(O)n CH2 CH2 CH=CF2 ; n is selected from 0, 1 and 2; R2, R3, and R4 are independently selected from hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, alkylcycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted aryloxy, optionally substituted arylalkoxy, alkoxy, alkenyloxy, alkynyloxy, hydroxyalkyl, alkoxyalkyl, alkylthio, alkenylthio, alkynylthio, haloalkyl, haloalkenyl, haloalkynyl, haloalkoxy, haloalkenyloxy, haloalkynyloxy, haloalkylthio, haloalkenylthio, haloalkynylthio, halogen, hydroxy, cyano, nitro, --NR5 R6, --NR7 COR8, --NR9 SO2 R10, --N(SO2 --R11)(SO2 --R12), --COR13, --CONR14 R15, --COOR16, --OCOR17, --OSO2 R18, --SO2 NR19 R20, --SO2 R21, --SOR22, --CSNR23 R24, --SiR25 R26 R27, --OCH2 CO2 R28, --OCH2 CH2 CO2 R29, --CONR30 SO2 R31, --SO2 Z, or an adjacent pair of R2, R3 and R4 when taken together form a fused 5- or 6-membered carbocyclic or heterocyclic ring; R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, R28, R29, R30 and R31 are independently selected from hydrogen, alkyl, alkenyl, alkynyl, haloalkyl, haloalkenyl, haloalkynyl, optionally substituted aryl and optionally substituted arylalkyl; and Z is halogen.
