反应详情

N-(para-carboxyphenyl)maleimide was prepared as follows. Maleic anhydride (45.2 grams (g)) was dissolved in from 300-400 milliliters (ml) of acetone. To this solution, an equimolar amount of para-aminobenzoic acid (63.2 g) was added with rapid stirring. The reaction mixture solidified within a few seconds. Excess solvent was removed by evaporation to yield the amic acid intermediate which was then dried overnight at 65° C. under vacuum.

1. waitThe reaction mixture solidified within a few seconds
2. customExcess solvent was removed by evaporation