847552-57-2Relevant academic research and scientific papers
Fused polycyclic nitrogen-containing heterocycles: IX. Oxidative fusion of imidazole ring to 3-benzoylquinoxalin-2-ones
Mamedov,Kalinin,Gorbunova,Habicher
, p. 1041 - 1046 (2004)
3-α-Chlorobenzyl- and 3-benzoylquinoxalin-2-ones react with benzylamine in DMSO to give intermediate 3-(α-benzyliminobenzylidene) quinoxalin-2-one which is capable of existing in several tautomeric forms. The subsequent oxidative cyclocondensation leads to imidazo[1,5-a]quinoxalin-4-one. This new procedure for building up imidazo[1,5-a]quinoxalin-4-one system has been applied to the synthesis of various bis(imidazo[1,5-a]quinoxalin-4-ones).
