Hydrochloric Acid → 1-Aminoanthraquinone

Participants

Reaction Conditions

Reaction Steps

1-Hydroxylaminoanthraquinone 50 parts was stirred into a mixture of methyl alcohol 700 parts, water 100 parts and a 35% aqueous hydrochloric acid 60 parts. The reaction mixture was heated to 70°C and then added with zinc dust 16 parts little by little over 1 hour. After the reaction at 70°C for 3 hours, the reaction mixture was cooled to 25°C, filtered, washed with water and dried to obtain 42.5 parts of crystalline 1-aminoanthraquinone of a purity of 93%.

Provenance & Evidence