9 g of 9,10-diphenyl-9,10-dihydroanthracene-9,10-diol is added to a reflux apparatus with 100 mL of acetic acid, 15 g of sodium iodide and 15 g of sodium hypophosphite and the mixture is refluxed for 30 minutes. The mixture is cooled down, filtered and washed with some cold water. The product is recrystallized from hot ethyl acetate.
Refluxing the mixture of compounds
The pure product