NOVEL ALKOXY-SUBSTITUTED AND ALKYLTHIO-SUBSTITUTED PYRIMIDINE(THIONO)(THIOL)-PHOSPHORIC(PHOSPHONIC)ACID ESTERS AND THEIR USE AS INSECTICIDES AND ACARICIDES

摘要

O-alkyl-O-[5-substituted-pyrimidin(4)yl]-(thiono)(thiol)-phosphoric (phosphonic) acid esters of the formula in which R and R2 each independently is alkyl, R1 is hydrogen or alkyl, R3 is alkyl, alkoxy, alkylthio or phenyl, and X and Y each independently is oxygen or sulfur, WHICH POSSESS ARTHROPODICIDAL PROPERTIES.