PROCESS FOR PRODUCTION OF BENZALDEHYDE COMPOUND

摘要

Disclosed is a process for the production of a benzaldehyde of the formula (II), which comprises the steps of: mixing a mixed solution (1) or (2) with water and an acid to prepare a mixed reaction solution, where the mixed solution (1) contains a salt produced by reacting a benzyl compound of the formula (I) having a leaving group (L) with hexamethylenetetramine in a solvent and a solvent and the mixed solution (2) contains the compound of the formula (I), a solvent for the compound and hexamethylenetetramine; and subjecting the mixed reaction solution to a reaction to produce the benzaldehyde compound, wherein the molar ratio of hexamethylenetetramine to the compound of the formula (I) is adjusted to a value not smaller than 0.25 and smaller than 1.00. (I) (II) wherein L represents a halogen atom or the like; x, y and z independently represent an integer of 0 or 1, provided that sum total of x, y and z ranges from 1 to 3; R1 to R3 independently represent a hydrogen atom or a hydrocarbon group which may have a substituent, or any two members of R1 to R3 may together form an alkylenedioxy group and form a cyclic structure together with two contiguous carbon atoms located on the benzene ring.