| 摘要 |
<p>Compounds of the formula I I wherein R1 and R2, each independently of the other, is methoxy, ethoxy, or dimethylamino, R3 is methyl ethyl, n-butyl, cyclopropyl or cyclopropylmethyl, R4 is methyl or ethyl and R5 is C1-C5-alkyl, with the proviso that when R1 and R2 each is ethoxy, R3, R4 and R5 are not methyl at the same time possess valuable pesticidal, in particular insecticidal, properties.</p> |
