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.