反应详情

A mixture of phthalic anhydride (19 g) and aniline (14 g) is heated at 140° to 145° C. for 50 minutes, and to the reaction mixture is added water (50 ml). The resulting powder is collected by filtration, washed with 10% aqueous potassium carbonate solution (50 ml) and water (100 ml), and dried to give colorless powder (28 g, 97%). Recrystallization from acetic acid gives colorless needles.

1. temperatureis heated at 140° to 145° C. for 50 minutes
2. filtrationThe resulting powder is collected by filtration
3. washwashed with 10% aqueous potassium carbonate solution (50 ml) and water (100 ml)
4. customdried