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2001 triazole derivatives triazole derivatives R 0280 43 - 141 Oxidation of Urazoles under Mild and Heterogeneous Conditions with KHSO 5 and NaNO 2 . A combination of potassium persulfate and sodium nitrite in the presence of wet SiO 2 oxidizes urazoles and bis-urazoles to the respective triazolinediones under mild and heterogeneous conditions in excellent yields. — (ZOLFIGOL, MOHAMMAD ALI; BAGHERZADEH, MO- JTABA; CHEHARDOLI, GHOLAMABBAS; MALLAKPOUR, SHADPOUR E.; Synth. Commun. 31 (2001) 8, 1149-1154; Dep. Chem., Coll. Sci., Univ. Bu-Ali Sina, Hamadan 65174, Iran; EN) 1

ChemInform Abstract: Oxidation of Urazoles under Mild and Heterogeneous Conditions with KHSO5 and NaNO2

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Page 1: ChemInform Abstract: Oxidation of Urazoles under Mild and Heterogeneous Conditions with KHSO5 and NaNO2

2001 triazole derivatives

triazole derivativesR 0280

43 - 141Oxidation of Urazoles under Mild and Heterogeneous Conditionswith KHSO5 and NaNO2. — A combination of potassium persulfate andsodium nitrite in the presence of wet SiO2 oxidizes urazoles and bis-urazolesto the respective triazolinediones under mild and heterogeneous conditions inexcellent yields. — (ZOLFIGOL, MOHAMMAD ALI; BAGHERZADEH, MO-JTABA; CHEHARDOLI, GHOLAMABBAS; MALLAKPOUR, SHADPOURE.; Synth. Commun. 31 (2001) 8, 1149-1154; Dep. Chem., Coll. Sci., Univ.Bu-Ali Sina, Hamadan 65174, Iran; EN)

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