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Synthesis 2005(7): 1052-1054
DOI: 10.1055/s-2005-861858
DOI: 10.1055/s-2005-861858
SHORTPAPER
© Georg Thieme Verlag Stuttgart · New York
A New Synthetic Approach to the Benzo[c]phenanthridine Ring System
Further Information
Received
10 November 2004
Publication Date:
09 March 2005 (online)
Publication History
Publication Date:
09 March 2005 (online)
Abstract
The base-catalyzed reaction of 2-methylbenzonitrile and paraformaldehyde provided 6-amino-11,12-dihydrobenzo[c]phenanthridine, which was converted via the corresponding 6-oxo- and 6-thioxo-derivatives into benzo[c]phenanthridine.
Key words
aldehydes - nitriles - ring closure - dehydrogenation - heterocycles
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