INSECTICIDE, ACARICIDATE AND NEMATODICIDE ACTIVE S- (1,6-DIHYDRO-6-OXO-PYRIDAZIN- (1) -YL-METHYL) - (THIONO) - (DI) -THIOL-PHOSPHOR (PHOSPHON) ELIDE ACIDES FOR USE FOR PLANT PROTECTION AND OTHER TECHNICAL PURPOSES

摘要

O-Alkyl-S-[1,6-dihydro-6-oxo-pyridazin(1)ylmethyl]-(thiono)-(di)-thiol phosphoric(phosphonic) acid esters of the formula IMAGE in which R1 is alkyl or alkoxyalkyl with 1 to 6 carbon atoms per alkyl chain, R2 is alkyl, alkylmercapto, alkylamino or alkenylamino with up to 6 carbon atoms per aliphatic chain, amino or phenyl, and R3 is alkoxy, cyanoalkoxy, carbalkoxy-alkoxy, alkenyloxy, alkynyloxy, alkanoyloxy, dialkylcarbamoyloxy or alkylsulfonyloxy with up to 5 carbon atoms in each aliphatic chain, halogen, hydroxyl, or a (thiono) (thiol)-phosphoric(phosphonic) acid ester or esteramide radical, R4 and R5 each independently is hydrogen, alkyl with 1 to 3 carbon atoms or halogen, or R4 and R5 conjointly form a fused benzene ring, and X is oxygen or sulfur, WHICH POSSESS INSECTICIDAL, ACARICIDAL AND NEMATOCIDAL PROPERTIES.