[Studies on quinoxaline N-oxides. IX. On syntheses of 2-alkyl or 2-alkoxybenzimidazole 3-oxide from 2-alkyl or 2-alkoxyquinoxaline 4-oxide]

Recent advances in the synthesis of benzimidazol(on)es via rearrangements of quinoxalin(on)es

The review describes all the quinoxaline-benzimidazole rearrangements as a whole and the new quinoxalinone-benzimidazol(on)e rearrangements in particular when exposed to nucleophilic rearrangements which can be used for the synthesis of various biheterocyclic motifs.