Abstract:
5-METHYL-PYRAZOL-3-YL-THIONOPHOSPHONIC ACID ESTERS, I.E. (ALKYL AND PHENYL)-O-ALKYL-O-(5-METHYL-PYRAZOL-3-YL)THIONOPHOSPHONIC ACID ESTERS, WHICH POSSESS ARTHROPODICIDAL, ESPECIALLY ACARICIDAL AND INSECTICIDAL, PROPERTIES AND WHICH MAY BE PRODUCED BY CONVENTIONAL METHODS.
Abstract:
Pyrazolo-(thiono)phosphoric(phosphonic) acid esters of the general formula
IN WHICH R is an alkyl radical with one to six carbon atoms, R1 is an alkyl or alkoxy radical with one to six carbon atoms or a phenyl radical, and X is oxygen or sulfur, WHICH POSSESS INSECTICIDAL, ACARICIDAL AND RODENTICIDAL PROPERTIES. The present invention relates to and has for its objects the provision of particular new pyrazolo(thiono)phosphoric(phosphonic)acid esters, i.e., O,O-dialkyl-O-( -1-N,N-dimethylcarbamyl-3-methyl pyrazol(5)yl)-phosphonic acid esters, their O-alkyl-alkane- or benzene-phosphonic acid ester analogues and the corresponding thiono compounds, which possess insecticidal, acaricidal and rodenticidal properties, active compositions in the form of mixtures of such compounds with solid and liquid dispersible carrier vehicles, and method for producing such compounds and for using such compounds in a new way especially for combating pests, e.g., insects, acarids and rodents, especially insects and acarids, with other and further objects becoming apparent from a study of the within specification and accompanying examples. From U. S. Pat. No. 2,754,244 it is known that methylpyrazolo(thiono)phosphoric acid esters, such as O,O-diethyl-O-( 3methylpyrazol(5)yl)-thionophosphoric acid ester (Compound A), possess insecticidal and acaricidal properties.
IN WHICH R IS ALKYL WITH 1-6 CARBON ATOMS, R1 IS ALKYL OR ALKOXY WITH 1-6 CARBON ATOMS OR PHENYL, AND X IS OXYGEN OR SULFUR, WHICH POSSESS INSECTICIDAL, ACARICIDAL, NEMATOCIDAL AND RODENTICIDAL PROPERTIES. PYRIDAZINOTHIONOPHOSPHORIC(PHOSPHONIC) ACID ESTERS OF THE GENERAL FORMULA