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
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container_end_page 669
container_issue 3
container_start_page 663
container_title Helvetica chimica acta
container_volume 79
creator Omelka, Ladislav
Vrábel, Imrich
Erentová, Katarína
Dauth, Jochen
Deubzer, Bernward
Weis, Johann
description 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.
doi_str_mv 10.1002/hlca.19960790310
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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.</description><identifier>ISSN: 0018-019X</identifier><identifier>EISSN: 1522-2675</identifier><identifier>DOI: 10.1002/hlca.19960790310</identifier><language>eng</language><publisher>Weinheim: WILEY-VCH Verlag GmbH</publisher><ispartof>Helvetica chimica acta, 1996, Vol.79 (3), p.663-669</ispartof><rights>Copyright © 1996 Verlag GmbH &amp; Co. 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title ESR Study of Nitroxide Radicals Generated from Triaz-2-en-1-ols
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