Composto de acilacetonitrila, processo para sua preparação, miticida contendo o mesmo, método para extermínio de ácaros e uso do referido composto

摘要

The acylacetonitrile compound of the invention is represented by the formula (1): wherein R<1> represents -C(O)ZR<2>; R<2> represents C1-6 alkyl, C1-4 haloalkyl or the like; Z represents oxygen or sulfur; X and Y independently represent halogen, C1-6 alkyl or C1-4 haloalkyl; and m and n are independently an integer of 1 to 3. The acylacetonitrile compound of the invention exhibits excellent miticidal and ovicidal activities for mites over a long period. Therefore, the acylacetonitrile compound of the invention is useful as a miticide.