| 摘要 |
A compound corresponding to the following general formula: …<CHEM>… wherein… X represents oxygen or sulphur;… R represents C1-C6 alkyl or C1-C6 alkoxy;… R1 represents C1-C6 alkoxy;… R2 represents hydrogen or methyl; and… R3 represents hydrogen, methyl or phenyl; is disclosed. …<??>Such a compound may be prepared by reacting an @appropriate pyrazole with an appropriate phosphoric or phosphonic acid. …<??>The present invention also relates to an insecticidal composition comprising such a compound and an agronomically acceptable carrier or diluent, and to a method of controlling insects comprising applying such a compound or such a composition to the insects and/or to the habitats thereof and/or to the feedstuffs thereof. |
