C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
260/261, 167/7.4
C07F 9/6512 (2006.01) A01N 25/00 (2006.01) A01N 57/24 (2006.01)
Patent
CA 1064494
ABSTRACT OF THE DISCLOSURE. The present invention relates to compositions of matter based on certain new pyrimidinylthionophosphonic acid esters, to a process for their preparation and to their use as insecticides, acaricides and nematocides. It is already known that pyrimidinylthionophosphonic acid esters, for example, O,O-dimethyl- and O,O-diethyl-O-pyrimidin(2)yl-thionophosphoric acid ester or O,O-diethyl-O-[2-isopropyl-4-methyl-pyrimidin(6)yl]-thiono- phosphoric acid ester, have insecticidal and acaricidal properties (compare United States Patent Specification 3,741,968 and German Patent Specification 947,206). The present invention provides a composition of matter which comprises one or more pyrimidinylthionophosphonic acid esters of the general formula: Image (I) in which R represents alkyl with 1 to 6 carbon atoms, R' represents alkyl with 1 to 6 carbon atoms or phenyl, R" and RIV, which can be the same or different, represent alkyl with 1 to 4 carbon atoms or hydrogen, and R"' represents halogen or hydrogen alone or in admixture with a solid diluent or liquified gaseous diluent or carrier or in admixture with a liquid diluent or carrier containing a surface-active agent. Preferably, R represents straight-chain or branched alkyl with 1 to 4 carbon atoms, R' represents straight-chain or branched alkyl with 1 to 4 carbon atoms or phenyl, R" and RIV represent hydrogen, methyl or ethyl, and R"' represents hydrogen, chlorine or bromine.
233940
Behrenz Wolfgang
Hammann Ingeborg
Homeyer Bernhard
Maurer Fritz
Riebel Hans-Jochem
Aktiengesellschaft Bayer
Na
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