Phthalic Anhydride → 2-[(8-chlorodibenz[b,f][1,4]oxazepin-10(11H)-yl)carbonyl]benzoic acid

Beteiligte Stoffe

Reaktionsschritte

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).

Herkunft & Nachweise