| abstract |
PROBLEM TO BE SOLVED: To provide a method capable of industrially producing pyromellitic acid in an environmentally friendly and high yield from xylene or the like obtained at low cost as a petrochemical product. In a method for producing pyromellitic acid in which a 1,2,4,5-substituted alkylbenzene derivative is oxidized with oxygen using an oxidation catalyst, 1 to 3 of the substituents are an acetoxymethyl group or a hydroxymethyl group. An alkylbenzene derivative is used. [Selection figure] None |