1,5-Dichloroanthraquinone → 9,10-Anthracenedione, 1,5-bis(phenylthio)-

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

The yellow pleochroic 1,5-bis(phenylthio)anthraquinone was prepared as follows: Two equivalents (2.2 g) mercaptobenzene were added to 30 g NN'Dimethylformamide, 5 g potassium carbonate, one equivalent (2.7 g) 1,5-dichloroanthraquinone and heated to reflux for 4 hours, after which 100 ml methanol were added after cooling to 80° C. Upon collecting the crystalline product by filtration, chromatography on alumina using toluene-methanol, and drying, the bright yellow orange crystalline product was obtained.

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