O-1-substituted-6-pyridazinon(3)yl!-thionoalkanephosphonic acid esters for combating insects and acarids

US4097592A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfgang Hofer
• Fritz Maurer · Wuppertal, DE
• Hans-Jochem Riebel · Bad Camberg, DE
• Lothar Rohe
• Rolf Schroder · Wuppertal, DE
• Ingeborg Hammann · Cologne, DE
• Wolfgang Behrenz · Overath, DE
• Bernhard Homeyer · Leverkusen, DE

Key dates

• Filing date: Jul 26, 1976
• Grant date: Jun 27, 1978
• Expiry date: Jul 26, 1996

Classification

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

Abstract

O-1-substituted-6-pyridazinon(3)yl!-thionoalkanephosphonic acid esters of the formula ##STR1## in which R.sub.1 and R.sub.2 each independently is alkyl with 1 to 7 carbon atoms, PA1 R.sub.3 is alkyl, cyanoalkyl, alkylcarbonylalkyl, carbalkoxyalkyl, hydroxyalkyl, alkylthioalkyl or halogenalkyl with 1 to 4 carbon atoms per alkyl radical, alkenyl or alkynyl with 3 to 5 carbon atoms, benzyl, benzyl carrying at least one substituent selected from halogen and alkyl with 1 to 3 carbon atoms, phenyl, phenyl carrying at least one substituent selected from nitro, halogen, alkyl with 1 to 3 carbon atoms and carbalkoxy with 1 to 4 carbon atoms, morpholinomethyl or piperidinomethyl, PA1 R.sub.4 and R.sub.5 each independently is hydrogen or alkyl with 1 to 3 carbon atoms, and PA1 X and Y each independently is oxygen or sulfur, Which possess insecticidal and acaricidal properties.