224641-09-2Relevant academic research and scientific papers
A new route to ring-fused pyrazines: Imidazo[4,5-b]quinoxalines by a simple oxidation-annulation sequence
Herzoge, Svenja,Buehrdel, Gunther,Beckert, Rainer,Klimas, Susann,Wuerthwein, Ernst-Ulrich,Grimme, Stefan,Goerls, Helmar
experimental part, p. 4049 - 4057 (2010/03/24)
Novel tricyclic 4H-imidazo[4,5-b]quinoxalines were synthesized by a new orfto-annulation process starting from 4Himidazoles and cerammonium nitrate (CAN) as oxidation reagent in the presence of potassium carbonate as base. This reaction is interpreted as
