反应详情

A suspension of 6.5 g of anthracene-1,9-dicarboxylic acid (E. D. Bergmann and R. Ikan, J. Org. Chem., 23, 907 (1958)) in 100 ml of acetic anhydride was heated at reflux for 3 hours. The mixture was cooled and the orange precipitate was collected by filtration, washed with ether and dried in air to give 5.1 g (68%) of the title compound. Recrystallization from dimethylsulfoxide or toluene gave orange plates with melting point 289°-290° C.

1. temperaturewas heated
2. temperatureat reflux for 3 hours
3. temperatureThe mixture was cooled
4. filtrationthe orange precipitate was collected by filtration
5. washwashed with ether
6. customdried in air