| 摘要 |
The present invention describes a compound of formula (I), wherein n and n' are the same or different and are each 0, 1 or 2; R is hydrogen or methyl, R' is methyl ethyl or cyclopropyl, R<2> and R<3> are the same or different and are each hydrogen or methyl; R<a> is hydrogen or methyl, R<b> is cyano or R<a> and R<b> are linked to form a group CH2S(O)m where m is 0, 1 or 2. A method for preparing the compounds of formula (I), pesticidal formulations containing the compounds and their use in controlling pests are also described. |
