The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 13. Dibenzo-[f,h]phenanthro[9′,10′:4,5]thieno[2,3-c]quinoline
✍ Scribed by Jiann-Kuan Luo; Raymond N. Castle
- Book ID
- 112130745
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1993
- Tongue
- English
- Weight
- 321 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0022-152X
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## Abstract Photocyclization of 3‐chloro‐__N__‐(9‐phenanthryl)benzo[__b__]‐thiophene‐2‐carboxamide (**3**) and 3‐chloro‐__N__‐(9‐phenanthryl)‐naphtho[1,2‐__b__]thiophene‐2‐carboxamide (**10**) yielded dibenzo[__f,h__]benzothieno[2,3‐__c__]‐quinolin‐10(9__H__)‐one (**4**) and dibenzo[__f,h__]naphtho
## Abstract A previously unknown heterocyclic ring system, naphtho[2′,1′:4,5]thieno[2,3‐__c__]naphtho[2,1‐__f__]quinoline (**14**), was synthesized __via__ oxidative photocyclization of 3‐chloro‐__N__‐(2‐phenanthryl)naphtho[1,2‐__b__]‐thiophene‐2‐carboxamide (**9**). Further elaboration of the lact