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The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 22 Dibenzo[ f,h ]benzothieno[2,3‐ c ]quinoline, dibenzo[ f,h ]benzothieno[2,3‐ c ][1,2,4]triazolo[4,3‐ a ]quinoline and dibenzo[ f,h ]naphtho[2′,1′:4,5]thieno[2,3‐ c ]quinoline
Author(s) -
Luo JiannKuan,
Cabal Maria P.,
Federspiel Ronald F.,
Castle Raymond N.
Publication year - 2000
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570370451
Subject(s) - chemistry , thiophene , quinoline , ring (chemistry) , stereochemistry , carboxamide , medicinal chemistry , organic chemistry
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[2′,1′:4,5]thieno[2,3‐ c ]quinolin‐10(9 H )‐one ( 11 ), respectively. Further elaboration of the lactams provided three novel unsubstituted new ring systems.