Hydrogen Peroxide → 1,2,5-Oxadiazol-3-amine, 4,4'-azoxybis-

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Reaction Conditions

Reaction Steps

This procedure was modeled from the original Russian preparation. To 30% hydrogen peroxide (100.0 g, 0.88 mol) in a 500 ml jacketed flask maintained at 18° C. was added 98% sulfuric acid (55.0 g, 0.56 mol) over 10 minutes with stirring. Then, 3,4-diaminofurazan (10.0 g, 0.10 mole) was added. The suspension was stirred for 24 hours in which time the soluble green nitroso-aminofurazan was converted to the insoluble orange DAAF. The product was filtered on a glass frit, washed with water and air dried to yield 9.29 g (88%) of crude material. For recrystallization the crude compound was dissolved in the minimum amount of room temperature DMSO (approximately 22 ml) and then water (45 ml) was added over 5 minutes with stirring. The pure DAAF was filtered, washed with water and air-dried. This material had the same properties as previously reported by the Russians. 1H NMR (deuteriomethylsulfoxide) δ 6.65 (s, 2H), 6.93 (s, 2H); 13C NMR (deuteriomethylsulfoxide) δ 148.3, 151.2, 152.6, 153.9.

Provenance & Evidence