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

• US 4,345,078 A
• Filed: 09/26/1977
• Issued: 08/17/1982
• Est. Priority Date: 10/02/1976
• Status: Expired due to Term

• Current Assignee: Bayer AG
• Original Assignee: Bayer AG
• Inventors: Hofer, Wolfgang, Riebel, Hans-Jochem, Maurer, Fritz, Stendel, Wilhelm, Hammann, Ingeborg, Schroder, Rolf
• Primary Examiner(s): Daus, Donald G.
• Assistant Examiner(s): Turnipseed, James H.
• Application Number:
  US05/836,339
• Time in Patent Office: 1,786 Days
• Field of Search: 260/256.4 E, 260/256.5 R, 424/251, 544/244
• US Class Current: 544/244
• CPC Class Codes: A01N 57/08 containing heterocyclic radicals
• CPC Class Codes: C07F 9/6561 containing systems of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring or ring system, with or without other non-condensed hetero rings

Abstract

O-Alkyl-O-[5-carbalkoxy-7-alkyl-pyrazolo-(1,5-α)-pyrimidin-2-yl]-(thiono) (thiol)-phosphoric (phosphonic) acid esters of the formula ##STR1## in which R, R² and R³ each independently is alkyl,

R¹ is hydrogen or alkyl,

R⁴ is alkoxy, alkylthio, alkyl or phenyl, and

X is oxygen or sulphur

which possess arthropodicidal properties.

Claims

1. O,O-diethyl-O-[5-carbethoxy-7-tert.-butyl-pyrazolo(1,5-α

)-pyrimidin(2)yl]-thionophosphoric acid ester of the formula ##STR11##