Eur. J. Chem. volume 2, issue 1, P51-57 2011 DOI: 10.5155/eurjchem.2.1.51-57.249
Ahmed Ali Fadda, Fathy Mohamed Abdelrazek, Ahmed Mahmoud Fouda
Abstract:

KEYWORDSBenzofuroxan derivative (1a) reacts with the cyanoacetanilides (2a-d) to give the benzimidazole derivatives (3a-d). Benzofuroxan (1b) reacts with rhodanine derivatives (4a,b) in presence of sodium ethoxide to give the arylaminobenzoimidazole derivatives (6a,b); while the last reaction afforded the thiazolidinone derivatives (8a,b) and the obenzoquinone dioxime derivatives (9a,b) when it was repeated in the presence of sodium acetate. Moreover, a series of quinoxalinyl 1,4-di-N-oxide derivatives were prepared starting from quinoxalin-1,4-di-N-oxide derivatives (10a-c). Plausible mechanisms to account for the formation of the products are discussed.Heterocyclic N-oxides Benzofuroxan Rhodanine o-Quinone dioximes Thiocarbohydrazide Curtius rearrangement

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