| 摘要 |
1321491 Phosphorus esters BAYER AG 25 June 1971 [26 June 1970] 29945/71 Heading C2P The invention comprises compounds of the general formula wherein R is methyl, ethyl or isopropyl, R 1 is methoxy, methyl, ethyl or isopropyl and X is O or S. They are obtained by reacting a compound of the formula in the presence of an acid acceptor or in the form of an appropriate alkali metal-, alkaline earth metal- or ammonium salt, with a halide of the formula The reaction may be carried out in an inert solvent or diluent. The products have insecticidal, aearicidal, nematocidal and, in some cases, fungicidal properties and may be used as active ingredients in pesticidal compositions of conventional type. |
