反应详情

A stirred mixture of 8-chloro-dibenz[b,f]-[1,4]oxazepine (3.35 g) and phthalic anhydride (2.13 g) in THF (40 mL) was heated to reflux for 4 days. The mixture was concentrated and the residue was triturated with ether. The precipitated solid was filtered to give the title compound as a white solid (3.84 g).

1. temperaturewas heated
2. temperatureto reflux for 4 days
3. concentrationThe mixture was concentrated
4. customthe residue was triturated with ether
5. filtrationThe precipitated solid was filtered