Aldehyde compound and intermediate thereof

摘要

There is provided a process for producing an amide compound having an excellent harmful arthropod-controlling activity and represented by the formula (3): wherein R1, R2 and R3 independently represent a C1-C6 alkyl group optionally substituted with at least one halogen atom etc., R4, R5, R6 and R7 independently represent a halogen atom etc.