| 摘要 |
Pyrethroid type insecticides are described having the formula: <IMAGE> (I) <IMAGE> (X = H, F, Cl, Br; Y = Cl, Br) <IMAGE> <IMAGE> <IMAGE> +TR <IMAGE> wherein: R1=H, CN, C 3BOND CH R2=3-phenoxy, 3-benzyl, 4-allyl, 4-propargyl. R3=H, alkyl bound to the heterocyclic ring in position 3 or 2; R4=(in position 4 or 5 of the heterocyclic ring)=benzyl, benzoyl, phenoxy, allyl, propargyl; Y=O, S R5 and R6=alkyl C1-C3, or R5 and R6 together form an orthocondensed aromatic, heteroaromatic or aliphatic, saturated or unsaturated ring; R7 and R8 (equal to or different from each other)=H, halogen, CH3; R9=phenyl, vinyl, vinyl substituted, phenoxy. Compounds of general formula I are endowed with a high insecticide and acaricide activity.
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