反应详情

A mixture of the compound (II) (12.0 g), 3,4,5,6-tetarhydrophthalic anhydride (7.56 g) and acetic acid (50 g) was heated under reflux for 2 hours. The reaction mixture was cooled to room temperature, and water (75 g) was added thereto. The precipitated crystals were collected by filtration to give the compound (I) (15.4 g).

1. temperaturewas heated
2. temperatureunder reflux for 2 hours
3. filtrationThe precipitated crystals were collected by filtration