Potassium Persulfate → 1-Nitroanthraquinone

Participants

Reaction Steps

With stirring, 0.38 part (3.89 mmol) of potassium acetate is dissolved in 5 parts of glacial acid at 90° C. Then 2.1 parts (7.77 mmol; 4 equivalents) of potassium persulfate are added, whereupon a white suspension forms. Then 1.0 g (3.84 mmol) of nitrodihydroanthraquinone is added. After stirring for 3 hours at 90° C., the mixture is cooled and poured into 50 ml of water. The precipitate is isolated by filtration, washed with water, and dried. The residue is extracted by boiling 3 times in toluene. Partial concentration of the mother liquors and subsequent cooling and filtration give 0.84 part (86% of theory) of 1-nitroanthraquinone with a melting point of 228°-230° C.

Provenance & Evidence