Cinchomeronic acid → 1H,3H-furo(3,4-c)pyridine-1,3-dione

関与物質

反応手順

A mixture of pyridine 3,4-dicarboxylic acid (15.0 g) and acetic anhydride (30 mL) is refluxed for two hours. The excess acetic anhydride is removed by distillation and the anhydride is collected and purified by sublimation (123° C. at 3 mm Hg) to yield pyridine 3,4-dicarboxylic acid anhydride as a white solid (10.1 g).

情報源と証拠