Sodium Carbonate → 1-Aminoanthraquinone

Participants

Reaction Conditions

Reaction Steps

0.07 Gram of 5% palladium on carbon catalyst and 8 grams of crystal sodium carbonate were added to a mixture of 7.7 grams of 5-nitrotetrahydroanthraquinone and 320 grams of butanol. The resultant mixture was heated to 70° C. and hydrogen was fed for hydrogenation under normal pressure to have hydrogen absorbed in the starting 5-nitro compound in an amount of 2 mols per mol of the 5-nitro compound. The resultant solution was heated to 100° C. and subjected to filtration under hot conditions for separation of the catalyst therefrom, followed by distilling off butanol for condensation. The condensed solution was allowed to cool to precipitate crystals, which were then separated by filtration, washed with water and dried to obtain 6.1 grams of 1-aminoanthraquinone having a purity of 98.5%.

Provenance & Evidence