| abstract |
Abstract of the Disclosure New alkoxymethyl-substituted and alkylthiomethyl-substituted pyrazolyl(thiono)(thiol)-phosphoric(phosphonic) acid esters and ester-amides of the general formula (I) in which R represents hydrogen, alkyl, cyanoalkyl or phenyl, R1 represents hydrogen or halogen, R2 represents alkoxy or alkylthio, R3 represents alkyl, alkoxy, monoalkylamino or phenyl, R4 represents alkyl and X and Y which may be identical or different, each represent oxygen or sulphur. The compounds of the formula (I) are distinguished by a powerful insecticidal and acaricidal activity and are therefore useful in the plant protection field. |