反应详情

The first oxidation described in Example 1 was repeated using a starting mixture of 50 g of 2-acetyl-6-methylnaphthalene, 300 g of acetic acid, 100 g of water and 7.5 g of manganese(II) acetate. 39.2 g of oxidation product was isolated from the reaction mixture by filtration. 20 g of this product was then oxidized in the second oxidation step described in Example 1, in a solution of 2 g of cobalt(II) acetate and 0.5 g of sodium bromide in 500 g of acetic acid, at 180° C. and a gas escape rate of 2 liters per minute. 18.7 g of 2,6-naphthalene dicarboxylic acid was then obtained from the reaction mixture, in a purity of 97.7%.

1. custom39.2 g of oxidation product was isolated from the reaction mixture by filtration