
%0 Journal Article
%A Amiet, RG 
%A Johns, RB 
%T Azepinones. III. N-Oxidation and subsequent nitration of dibenzodiazepinone
%J Australian Journal of Chemistry
%D 1967/04/01
%V 20
%N 4
%P 723-729
%K 
%R https://doi.org/10.1071/CH9670723
%U https://www.publish.csiro.au/paper/CH9670723 
%X Dibenzo[c,f]-[1,2]-diazepin-11-one (I) is converted under conditions favour- able for nitration into the N-oxide (IV), and this in turn nitrates readily to form 2-nitro- and 2,4-dinitrodibenzo[c,f]-[1,2]- diazepin-11-one-6-oxide the structures of which are proposed largely on spectroscopic evidence. The experimental results suggest that the heterocyclic ring in compound (I) has little tropone-like character. 
