| 摘要 |
<p>There are described compounds of formula: <IMAGE> (I) in which X (or X')=H, F, Cl and X' (or X)=F, Cl; <IMAGE> with R2=H, Cl, Br, F an optionally halogen-substituted alkyl C1-C3; R3=halogen, an optionally halogen-substituted alkyl C1-C3; R4=H or R3; R1=H, halogen, an optionally halogen-substituted alkyl C1-C3, OCH3, SCH3, OCF3; n=an integer from 1 to 4. The compounds of formula I are endowed with a high insecticide activity which is mainly exerted against insects' larvae and eggs.</p> |
