Pyridazinonyl-(di)(thio)-phosphoric (phosphonic) acid esters as pesticides

US4260604A · kind A · utility

Assignee

• BASF SE

Inventors

• Annegrit Baumann · Mannheim, DE
• Heinrich Adolphi · Schifferstadt, DE
• Rolf Huber · Tübingen, DE
• Karl Kiehs · Lampertheim, DE

Key dates

• Filing date: Oct 5, 1979
• Grant date: Apr 7, 1981
• Expiry date: Oct 5, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/650905
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

New pyridazinonyl-(di)(thio)-phosphoric (phosphonic) acid esters of the formula ##STR1## where X and Y each denote oxygen or sulfur, R.sup.1 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, R.sup.2 denotes linear or branched alkyl of 1 to 4 carbon atoms, phenyl or benzyl, R.sup.3 denotes linear or branched alkyl of 1 to 4 carbon atoms or phenyl, R.sup.4 denotes linear or branched alkyl of 1 to 4 carbon atoms, or R.sup.3 and R.sup.4, 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 in…