| abstract |
The invention relates to new phosphorus (phosphonic) acid amides of the formula I <IMAGE> in which R¹ is hydrogen or optionally substituted alkyl, R² is optionally substituted alkyl or optionally substituted alkoxy, R³ is optionally substituted alkyl and Hal is halogen, which are obtained , if phosphoric (phosphonic) acid ester amides of the formula <IMAGE> in which R¹, R² and Hal have the meaning given above, with trialkylchlorosilanes of the formula III CISi (R³) 3 (III) in which R³ has the meaning given above , in the presence of an acid acceptor and optionally in the presence of a solvent, and which can be used as pesticides, in particular as insecticides and acaricides. |