Acetic Anhydride → HCID 11049111, compound

Participants

Reaction Steps

1.65 mmol of 2,3-di-(trifluoromethyl)-naphthacene-5,12-dione, 5 ml of ethyl acetate, 4.96 mmol of potassium acetate and 3 ml of acetic anhydride are hydrogenated for 35 minutes at 20°-25° C., with the addition of 0.1 g of Pd/C (5%). The reaction mixture is filtered and the residue is washed three times with CH2Cl2. The filtrates are evaporated and the residue is recrystallized from CHCl2 /pentane. 2,3-Di-(trifluoromethyl)-5,12-diacetoxynaphthacene is obtained in a yield of 0.45 g (70%), melting point 149°-153° C.

Provenance & Evidence