Combating arthropods with O-alkyl-O-[5-carbalkoxy-7-alkyl-pyrazolo(1,5-.alpha.)-pyrimidin-2-yl]-(t hiono) (thiol)-phosphoric (phosphonic) acid esters

US4345078A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfgang Hofer
• Fritz Maurer · Wuppertal, DE
• Hans-Jochem Riebel · Bad Camberg, DE
• Rolf Schroder · Wuppertal, DE
• Ingeborg Hammann · Cologne, DE
• Wilhelm Stendel · Wuppertal, DE

Key dates

• Filing date: Sep 26, 1977
• Grant date: Aug 17, 1982
• Expiry date: Sep 26, 1997

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N57/08
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

O-Alkyl-O-[5-carbalkoxy-7-alkyl-pyrazolo-(1,5-.alpha.)-pyrimidin-2-yl]-(thi ono) (thiol)-phosphoric (phosphonic) acid esters of the formula ##STR1## in which R, R.sup.2 and R.sup.3 each independently is alkyl, PA1 R.sup.1 is hydrogen or alkyl, PA1 R.sup.4 is alkoxy, alkylthio, alkyl or phenyl, and PA1 X is oxygen or sulphur which possess arthropodicidal properties.