| 摘要 |
<p>A B S T R A c T Compounds of the general formula I wherein R1 is hydrogen or a methoxy, ethoxy, propoxy, butoxy, tetrafluoroethoxy, methylthio, ethylthio, propylthio, fluoro, chloro, bromo, methyl, ethyl, or nitro group, and R2 is hydrogen or a methyl group, or R1 and R2 together form a methylenedioxy group; R3 is hydrogen, or n lower alkyl group, or one of the following groups (a) to (f) : (a) 3-phenoxybenzyl (b) 2-benzyl-4-furylmethyl (c) .alpha.-cyano-3-phenoxybenzyl (d) 3,4-methylenedioxybenzyl (e) .alpha.-ethynyl-3-phenoxybenzyl (f) .alpha.-cyano-3-(4'-chorophenoxy)-benzyl and Y1, Y2, Y3, Y4, Y5 and Y6 are the same or different groups and each is hydrogen or a fluoro, bromo or chloro group, with the proviso that when R1 is hydrogen, fluoro, chloro, bromo or methyl and R2 is hydrogen or methyl, then at least one of Y1 to Y6 is other than hydrogen. The compounds in which R3 is one of groups (a) to (f) are insecticides.</p> |
