ACID ESTERS AND AMIDES

摘要

O-alkyl-O-[1,6-dihydro-1-substituted-6-oxo-pyrimidin-4-yl]-(thiono) (thiol) phosphoric (phosphonic) acid esters and ester-amides of the formula (I) in which R represents alkyl, R1 represents alkyl, alkoxy, alkylthio, monoalkylamino or phenyl, R2 represents hydrogen, alkyl, alkoxy, alkylthio or dialkylamino, R3 represents alkyl or alkenyl, R4 represents hydrogen, alkyl or halogen, and X represents oxygen or sulphur, WHICH POSSESS INSECTICIDAL, ACARICIDAL AND NEMATICIDAL PROPERTIES.