A New Synthetic Approach to the Benzo[<i>c</i>]phenanthridine Ring System
作者:Bernd Clement、Ilka Kock
DOI:10.1055/s-2005-861858
日期:——
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.