| 摘要 |
PURPOSE:To produce the titled substance in high yield, by using the easily available 2,6-diisopropylnaphthalene or its oxidation 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 specific amount of heavy metal and bromine. CONSTITUTION:The objective compound 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) at 140-210 deg.C, in the presence of a binary catalyst composed of (A) heavy metal consisting of cobalt and/or manganese and (B) bromine. The amount of the solvent is preferably >=2pts.wt. per 1pt.wt. of the sum of the raw material and the titled compound existing in the oxidation reaction mixture. |
