In my project, Anthrone was nitrated to 2,7-nitro-9,10-anthraquinone. but I only figure out half of the mechanism.
The procedure is
Anthrone (20 g, 104 mmol) was added slowly with stirring to fuming nitric acid
(160 mL) at 5 - 0 °C. Subsequently, 400 ml of acetic acid was added slowly to the
reaction mixture with cooling. The resulting solution was allowed to stand at room
temperature for 1 week. At the end of the period, the yellow precipitate was
collected by filtration, washed with acetic acid (100 ml) and hexane (100 ml), and
dried under vacuum. The crude product was recrystallized twice from acetic acid
then recrystalised from nitrobenzene/ acetic acid (1:1 v/v) to obtain the target
product as yellow crystals.
But I do not know how the oxidation mechanism occur.
I though It might be like this,
Many thanks in advance