Pyrimidine (4,6) diyl - to - (thiono) (thio) phosphorus - (phosphorus phone) - saeureester, processes for their preparation and their use as insecticides and acaricides

摘要

Pyrimidine (4,6)diyl-bis-(thiono)(thiol)-phosphoric (phosphonic) acid esters of the formula IMAGE in which R is alkyl with 1 to 6 carbon atoms, R1 is alkyl, alkoxy or alkylmercapto each with 1 to 6 carbon atoms or phenyl, R2 is alkyl, alkoxy or alkylmercapto each with 1 to 5 carbon atoms, hydrogen or phenyl, R3 is hydrogen, alkyl with 1 to 4 carbon atoms or halogen, and X is oxygen or sulfur, WHICH POSSESS INSECTICIDAL AND ACARICIDAL PROPERTIES.