Acetic Anhydride → HCID 11049111, compound

Participants

Reaction Steps

1.65 mmol of 2,3-bis-(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 mixture is filtered and the residue is extracted by washing three times with CH2Cl2. The filtrates are evaporated and the residue is recrystallized from CH2Cl2 /pentane. Yield 76% of 2,3-bis-(trifluoromethyl)-5,12-diacetoxynaphthacene; melting point >250°.

Provenance & Evidence