| 摘要 |
The present invention provides compounds of the formula (I): <IMAGE> (I) wherein R is a C2-10 non-aromatic hydrocarbyl group, a C2-10 non-aromatic hydrocarbyl group substituted by, or methyl substituted by cyano, halo, C1-4 alkoxy, C1-4 alkoxy substituted by halo, or a group S(O)mR4 where R4 is C1-4 alkyl optionally substituted by halo and m is 0, 1 or 2, or R is phenyl or phenyl substituted by C1-4 alkoxy, C1-3 alkyl, C2-4 alkynyl, halo, C1-4 haloalkyl, cyano or a group S(O)mR4 as defined hereinbefore; R1 and R2 may be the same or different, and each is hydrogen, or a C1-3 aliphatic group, or a C1-3 aliphatic group substituted by halo; R3 contains between 3 and 18 carbon atoms and is a group R5 wherein R5 is a C1-13 non-aromatic hydrocarbyl group, a C1-3 non-aromatic hydrocarbyl group substituted by a C2-4 carbalkoxy or cyano group and/or by one or two hydroxy groups and/or by one to five halo atoms which are the same or different and/or by one to three groups R6 which are the same or different and each contains one to four hetero atoms, which are the same or different and are chosen from oxygen, sulphur, nitrogen and silicon, 1 to 10 carbon atoms and 0 to 6 fluoro or chloro atoms or R3 is a 6-membered aromatic ring substituted by cyano and/or by one to three groups R6 and/or by a group -C 3BOND CH, -C 3BOND C-R5 or C 3BOND C-halo and/or by one to five halo atoms and/or by one to three C1-4 haloalkyl groups wherein R5 and R6 are as hereinbefore defined; and Y is selected from methylene, oxygen and S(O)t', Y' is selected from oxygen and S(O)t'' where t' and t'' are each selected from 0, 1 or 2; and t is 1 or 2, processes for their preparation, formulations containing them and their use in the control of pest infestation.
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