120644-07-7Relevant academic research and scientific papers
Greener synthesis using hydrogen peroxide in ethyl acetate of alicyclic ring-fused benzimidazoles and anti-tumour benzimidazolequinones
Aldabbagh, Fawaz,Gurry, Michael,Keane, Lee-Ann J.,Sweeney, Martin
, p. 3565 - 3567 (2017)
Environmentally-friendly and cost effective hydrogen peroxide in ethyl acetate was used to prepare in high yields pyrrolo[1,2-a]benzimidazoles from commercial o-(pyrrolidin-1-yl)anilines without the requirement for organic-aqueous extraction and chromatography. Six, seven and eight membered ring-fused analogues were similarly obtained in high yields with methanesulfonic acid required for the pyrido[1,2-a]benzimidazole. Anti-tumour benzimidazolequinone derivatives were obtained in high yield via the cyclization of 3,6-dimethoxy-2-(cycloamino)anilines.
New Red Diazonium Compounds Based on 2-Amino Benzene Diazonium Salts
Mustroph, H.,Haessner, R.
, p. 319 - 323 (2007/10/02)
Using PMO theory the influence of substituents on the visible spectra of benzene diazonium salts is duscussed.The theory explains the experimental structure-colour relationships and allows to predict new basic structures of coloured benzene diazonium salt
