PYRIDAZINONE-YL-(DI)(THIO)PHOSPHORIC(PHOSPHONIC) ACID ESTERS, PROCESS FOR THEIR PREPARATION, PESTICIDE CONTAINING THEM AND PROCESS FOR COMBATING PESTS

    公开(公告)号:DE2860622D1

    公开(公告)日:1981-05-07

    申请号:DE2860622

    申请日:1978-09-28

    Applicant: BASF AG

    Abstract: New pyridazinonyl-(di)(thio)-phosphoric (phosphonic) acid esters of the formula I, where X and Y each denote oxygen or sulfur, R1 denotes linear or branched alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, mono- or dialkylamino of 1 to 4 carbon atoms in each alkyl, phenyl, or benzyl, R2 denotes linear or branched alkyl of 1 to 4 carbon atoms, phenyl or benzyl, R3 denotes linear or branched alkyl of 1 to 4 carbon atoms or phenyl, R4 denotes linear or branched alkyl of 1 to 4 carbon atoms, or R3 and R4, together with the oxygen and the carbon atom whose substituents they are, form a 5- or 6 membered saturated ring which may be substituted by alkyl of 1 to 4 carbon atoms, which are effective against pests, especially insects and Arachnida, pesticides containing these pyridazinonyl-(di)(thio)-phosphoric (phosphonic) acid esters as active ingredients, and a process for combating pests with these active ingredients. The present invention relates to new pyridazinonyl-(di) (thio)-phosphoric (phosphonic) acid esters, a process for their manufacture, and pesticides, especially insecticides and acaricides, containing these compounds as active ingredients.

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