486403-43-4Relevant academic research and scientific papers
Synthesis of tetracyclic pyrano[4,3-b]-6H-imidazo[1,2-a] [1,5]benzodiazepines
Hammal, Lamouri,Bentarzi, Yamina,Nedjar-Kolli, Bellara,Hoffmann, Pascal
, p. 209 - 215 (2009)
A synthetic route to tetracyclic pyrano[4,3-b]-imidazo[1,2-a][1,5] benzodiazepines is described. The key is the intramolecular cyclization using cyanogen bromide of enaminones, obtained from reaction of pyrone or tetronic acid with o-phenylenediamine deri
Reactivity studies on 4-aminopyrones: Access to benzimidazole and benzimidazolone derivatives
Amari, Mohamed,Fodili, Mokhtar,Nedjar-Kolli, Bellara,Hoffmann, Pascal,Perie, Jacques
, p. 811 - 816 (2007/10/03)
Reaction of pyrone 1a or tetronic acid 1b with o-phenylenediamine derivatives gave enaminone compounds 2. When reacting with different electrophiles, these intermediates allowed versatile access to different heterocyclic structures: when DMA derivatives o
