| 摘要 |
Pyrazinone derivatives useful as insecticides have the formula (I) : <CHEM> wherein A is N or C-R<1>; R<1> and R<2> are independently selected from hydrogen, halogen, haloalkyl, cyano or nitro; R<3> and R<4> are independently selected from hydrogen, halogen, alkyl or cycloalkyl; R<5> is cyano, halo, nitro, alkoxy, haloalkyl, haloalkoxy or -S(O)nR<1><0>; R<6> is halo, cyano, nitro, haloalkyl, haloalkoxy, alkoxycarbonyl or -S(O)nR<1><0>; R<7> is hydrogen, halogen, cyano, nitro, alkyl, alkoxy, alkylthio, haloalkylthio, alkoxycarbonyl, NR<1><1>R<1><2> or haloalkyl; R<8> is H, halo, NR<1><1>R<1><2>, alkyl, cycloalkyl or S(O)nR<1><0>; and R<9> is oxygen or sulphur; where n is 0, 1 or 2; and R<1><0> is alkyl, haloalkyl or cycloalkyl and R<1><1> and R<1><2> are independently selected from hydrogen, alkyl, cycloalkyl, benzyl or substituted benzyl. |
