Nucleophilic displacement of aromatic fluorine, Part III, indoloquinolines and benzofuranoquinolines

Variously substituted indolo[2,3‐c]quinolines, benzofurano[2,3‐c]quinolines and their positional isomers indolo[3,2‐c]quinolines and benzofurano[3,2‐c]quinolines respectively, were prepared from both indole and quinoline derivatives by intramolecular nucleophilic displacement of aromatic fluorine. The formation of an indolo[2,3‐d]benzazepine was also observed.