反应详情

Aniline (1 mol) and maleic anhydride (1.0 mol) were subjected to an addition reaction at 20 to 30° C. for 2.5 hours to give N-phenylmaleamidic acid. Then, the resulting N-phenylmaleamidic acid was neutralized with sodium hydroxide under cooling to give an N-phenylmaleamidic acid sodium salt.