| 摘要 |
Compounds having the formula: <CHEM> wherein: R is Cl or F; R1 is H, Cl or F; R2 and R3 are identical or different from each other, and represent H, halogen or C1-C4 alkyl; R4 and R5 are identical or different from each other and represent H, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, alkenyl, haloalkenyl, alkenyloxy, haloalkenyloxy or alkynyl; R6 and R7 are identical or different from each other and represent H, C1-C3 alkyl, optionally substituted by halogen; Y is H or F; and n is an integer of from 1 to 4; exhibit high insectididal activity, mainly against larvae and eggs of insects. |
