The nitro group on the furazan ring is found to undergo a facile regioselective displacement by a hydroxy group on treatment with the solid crystal hydrate of inorganic bases in dry acetonitrile; this straightforward reaction affords the hydroxyfurazans in high yields.
A. B. Sheremetev and N. S. Aleksandrova, Mendeleev Commun., 1998, 8, 238 DOI: 10.1070/MC1998v008n06ABEH001045
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