Access to Different Isomeric Dibenzoxazepinones through Copper-Catalyzed C–H Etherification and C–N Bond Construction with Controllable Smiles Rearrangement
sequential C–H etherification and subsequent Goldberg reaction, both controlled by the aminoquinoline group and Cu(I), or via a C–H etherification and subsequent Smiles rearrangement promoted by Cu(II) and t-BuOK. The 8-aminoquinoline moiety, e.g., 8-amino-5-methoxyquinoline, is readily removable from the structures of dibenzoxazepinones under moderate conditions.