
%0 Journal Article
%A Evans, NA 
%A Johns, RB 
%A Markham, KR 
%T Azepinones. II. Syntheses of substituted pyridazines
%J Australian Journal of Chemistry
%D 1967/04/01
%V 20
%N 4
%P 713-722
%K 
%R https://doi.org/10.1071/CH9670713
%U https://www.publish.csiro.au/paper/CH9670713 
%X Two attempted synthetic routes to diphenyldiazatropones are described. Cyclization with hydrazine of 2-oximino-1,5-diphenylpentane-1,5-dione (IV) yielded substituted pyridazines rather than perhydrodiazepines. Oximination of the diphenyldihydrodiazepine (II) was successful, but attempts to dehydrogenate the ring proved only promising. A new and fully conjugated 10 &#960;-electron system, the pyridazotriazole (VII), is described, as well as some unexpected rearrangements of the oxime (V). 
