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Synthesis of 2H-imidazole 1-oxides and stable nitroxyl radicals based on them

Research paper by I. A. Kirilyuk, I. A. Grigor'ev, L. B. Volodarskii

Indexed on: 01 Sep '91Published on: 01 Sep '91Published in: Russian Chemical Bulletin



Abstract

2H-Imidazole 1-oxides containing an aldonitrone group in the heterocyclic ring are obtained by the condensation of hydroximinomethyl ketones with ketones and ammonium acetate. Their oxidation with lead dioxide in methanol gives stable nitroxyl radicals — 5,5-dimethoxy-3-imidazoline-1-oxyls.