| 摘要 |
PROBLEM TO BE SOLVED: To provide a process by which the dihalomethyl group of a dihalomethyl-substituted aromatic compound having a trifluoromethyl group as a substituent can be hydrolyzed in a short time. SOLUTION: The process for the production of formyl-substituted aromatic compounds which comprises hydrolyzing a dihalomethyl-substituted aromatic compound represented by general formula (1) into the corresponding formyl-substituted aromatic compound in the presence of an iron salt, wherein an aldehyde compound and an iron salt are dissolved in the dihalomethyl-substituted aromatic compound prior to the occurrence of hydrolysis, and after the resulting reaction system reaches a reaction temperature sufficient to cause the hydrolysis, water is added to the reaction system at a rate that does not exceed the rate of consumption of water. In general formula (1), Ar is an aromatic ring; X is a halogen atom; Rs are each independently a monovalent organic group which may be different from each other; and l is an integer of 1 to 3, m is an integer of 1 to 5, and n is an integer of 0 to 5, with l, m and n satisfying the relationship: 1≤l+m+n≤6. COPYRIGHT: (C)2011,JPO&INPIT
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