ESR Study of Nitroxide Radicals Generated from Triaz-2-en-1-ols

ESR Study of Nitroxide Radicals Generated from Triaz-2-en-1-ols

The triazenols 4‐R1C6H4NNN(OH)R2 (1), oxidized with t‐BuO ⋅2 radicals, produced nitroxide radicals R1C6H4N(O⋅)NN(R2) +O− (5). The suggested radical structure was confirmed by 15N‐labeling. The reaction of triazenols 1 with PbO2 proceeded under N2 elimination, in which case nitroxides R1C6H...

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Veröffentlicht in:Helvetica chimica acta 1996, Vol.79 (3), p.663-669
Hauptverfasser: Omelka, Ladislav, Vrábel, Imrich, Erentová, Katarína, Dauth, Jochen, Deubzer, Bernward, Weis, Johann
Format: Artikel
Sprache:eng
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Zusammenfassung:The triazenols 4‐R1C6H4NNN(OH)R2 (1), oxidized with t‐BuO ⋅2 radicals, produced nitroxide radicals R1C6H4N(O⋅)NN(R2) +O− (5). The suggested radical structure was confirmed by 15N‐labeling. The reaction of triazenols 1 with PbO2 proceeded under N2 elimination, in which case nitroxides R1C6H4N(R2)O⋅(2) were observed as the final radical products. The intermediate R1C6H 4⋅ radicals were identified by spin‐trapping.
ISSN:0018-019X
1522-2675
DOI:10.1002/hlca.19960790310