(Thiono)(thio)phosphates, -phosphonates, -phosphoramidates or -phosphonamidates of substituted pyrazolo[3,4-b]pyridines, their preparation and their use as pesticides

摘要

(Thiono)(thio)phosphates, -phosphonates, -phosphoramidates or -phosphonamidates of substituted hydroxypyrazole[3,4-b]pyridines of the formula <IMAGE> in which R1 denotes alkyl, cyanoethyl, (substituted) benzyl or (substituted) phenyl, R2 denotes alkyl, alkoxy, alkylthio, alkylamino, dialkylamino or allylamino, R3 denotes alkyl, R4 denotes hydrogen, alkyl, halogen, NO2, CF3, COO(C1-C2)alkyl or phenyl and X denotes oxygen or sulphur, are effective insecticides, acaricides and fungicides.