316-31-4Relevant articles and documents
Conversion of 5H-Dibenzoazepines into Phenanthridines via Cyclic N-Diazonium Ions
Kreher, Richard,Bergmann, Udo
, p. 881 - 885 (2007/10/02)
The reaction of 6-amino-6,7-dihydro-5H-dibenzoazepine, bearing a terminal blocking group, with trifluoracetylnitrite presumably proceeds via cyclic 7-membered N-diazonium ions and mainly leads to the formation of phenanthridine by migration of the aryl group. 5H-Dibenzoazepine can be isolated as the minor product and seems to be the result of a hydrogen shift.N,N'-Azo-6,7-dihydro-5H-dibenzoazepine displays an analogous behaviour. - Key words: Cyclic N-Diazonium Ions, Isomerization and Ring Contraction