1,4,4a,9a-Tetrahydroanthracene-9,10-dione → Anthraquinone

Participants

Reaction Steps

20 g of 1,4,4a,9a-tetrahydro-anthraquinone and 2 g of palladium at 5% on charcoal are heated under an atmosphere of nitrogen for one hour at 130° C. After cooling, the solid mixture is washed with 250 ml of acetone. After a similar treatment to that of the preceding Examples 1 and 2, 3.6 g of anthraquinone and 16 g of a mixture of 1,2,3,4-tetrahydro-9,10-anthracenediol and 1,2,3,4-tetrahydro-anthraquinone (Mixture C) are obtained.

Provenance & Evidence