| 摘要 |
PURPOSE:To produce the titled substance in high yield, by using the easily available 2,6-diisopropylnaphthalene or its intermediate as a raw material, and oxidizing the material with molecular oxygen in a solvent containing an aliphatic monocarboxylic acid in the presence of a catalyst containing large amount of heavy metal. CONSTITUTION:The objective compound useful as a raw material of a polymer for the manufacture of film, etc. having excellent heat resistance, etc. is produced by oxidizing 2,6-diisopropylnaphthalene or its oxidation intermediate with molecular oxygen in a solvent containing >=50wt% aliphatic monocarboxylic acid having a carbon number of <=3 (preferably acetic acid) (when water is contained in the solvent, its amount is preferably <=30wt%, especially <=20wt%), using a catalyst consisting of (A) heavy metal consisting of cobalt and/or manganese and (B) bromine. The amount of the heavy metal used as a component of the catalyst in the oxidation reaction mixture is >=1wt%, preferably 2-20wt%. |
