The Synthesis of Novel Polycyclic Heterocyclic Ring Systems Via Photocyclization. 14. 14-Methylbenzo[h]naphtho-[1′2′:4,5]thieno[2,3-c][1,6]Naphthyridine

Journal Title, Volume, Page:

Journal of Heterocyclic Chemistry Volume 31, Issue 2, pages 553–555, March/April 1994

Year of Publication:

1994

Link:

http://onlinelibrary.wiley.com/doi/10.1002/jhet.5570310251/abstract

Authors:

M. J. Musmar

Department of Chemistry, University of South Florida, Tampa, Florida 33620–5250 USA

Current Affiliation:

Department of Pharmacy, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine

[email protected]

Raymond N. Castle

Department of Chemistry, University of South Florida, Tampa, FL 33620–5250 USA

Preferred Abstract (Original):

Benzo[h]naphtho[1′2′:4,5]thieno[2,3-c][1,6]naphthyridine, a novel polycyclic heterocyclic ring system, has been synthesized as the 14-methyl derivative 8 in four steps from known intermediates. The structure of 8 is supported by assignment of the proton and the protonated carbon atoms by 2D-nmr techniques (COSY and a carbon-hydrogen one-bond coupling experiment).

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The Synthesis of Novel Polycyclic Heterocyclic Ring Systems Via Photocyclization. 14. 14-Methylbenzo[h]naphtho-[1′2′:4,5]thieno[2,3-c][1,6]Naphthyridine