134273-46-4Relevant academic research and scientific papers
The Syntheses of 4b,5a-Dihydrodibenzanthraoxirene and 4b,5a-Dihydro-5H-dibenzanthraazirine
Abu-Shqara, Elias,Blum, Jochanan
, p. 473 - 475 (2007/10/02)
The syntheses of the K-oxide and K-imine derivatives of dibenzanthracene (1) are described.The parent hydrocarbon 1 that was obtained as a side product in the Elbs pyrolysis of (2-methyl-1-naphthyl)-1'-naphthylmethanone (10) was oxidized to 3-(2-formylphenyl)-3-phenanthrenecarboxaldehyde (3).Treatment of the dialdehyde with tris(dimethylamino)phosphine gave 4b,5a-dihydrodibenzanthraoxirene (4).Reaction of the oxirane with sodium azide followed by triethyl phosphite cyclization of the mixture of trans azido-alcohols so formed, yielded mainly 4b,5a-dihydrodibenzanthraazirine (5).
