Hydrochloric Acid → 1-Amino-6,7-dimethylanthracene-9,10-dione

関与物質

反応条件

反応手順

50 Parts of 2,3-dimethyl-5-hydroxylaminoanthraquinone was stirred into a mixture of 700 parts of ethyleneglycol monomethyl ether, 200 parts of water and 60 parts of a 35 % aqueous hydrochloric acid, and the mixture was then heated to 75°C. To the mixture there was added little by little 16 parts of zinc dust over 1 hour. The reaction mixture was maintained at 75°C for additional 3 hours, then cooled to 25°C and filtered. The residue was washed with water and dried to obtain 43.6 parts of 2,3-dimethyl-5-aminoanthraquinone of a purity of 95 %.

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