Hydrochloric Acid → HCID 19090664, compound

Participants

Reaction Steps

50 g (116.8 mmol) of 2,3,8,9-tetrachloro-6,11-dihydroxynaphthacene-5,12-dione, 77.22 g (700.8 mmol) of thiophenol, 129.15 g (934 mmol) of potassium carbonate and 400 ml of dimethyl sulfoxide (DMSO) are stirred for 1 day at 100° C. The mixture is poured into a dilute aqueous solution of HCl and stirred. The red crude product is isolated by filtration, washed with water, dried at 140° C. under vacuum. then extracted three times by boiling with cyclohexanone and dried once more. Yield: 80.11 g (95%); melting point >260° C. MS: 722 (M+ ; base peak).

Provenance & Evidence