The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 8 . [1]Benzothieno[2,3‐c]naphtho[1,2‐h]quinoline and [1]benzothieno[2,3‐c]naphtho[1,2‐h][1,2,4]triazolo[4,3‐a]quinoline

The previously unknown polycyclic heterocyclic ring systems, namely, [1]benzothieno[2,3‐c]naphtho[1,2‐h]‐quinoline and [1]benzothieno[2,3‐c]naphtho[1,2‐h][1,2,4]triazolo[4,3‐a]quinoline were synthesized via photocyclization of 3‐chloro‐N‐(1′‐phenanthryl)benzo[b]thiophene‐2‐carboxamide.