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  1. 医学部
  2. 学術雑誌掲載論文  (医学部)

Electron spin resonance analysis of the oxidation reactions of nitrone type spin traps with gold(III) ion

http://hdl.handle.net/10458/1012
http://hdl.handle.net/10458/1012
5b8f71bd-e8dc-41e9-b4e7-53d2a169d581
名前 / ファイル ライセンス アクション
CanJChem-83-1178-2005.pdf CanJChem-83-1178-2005.pdf (585.5 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2007-12-05
タイトル
タイトル Electron spin resonance analysis of the oxidation reactions of nitrone type spin traps with gold(III) ion
言語 en
言語
言語 eng
キーワード
言語 en
主題Scheme Other
キーワード ESR, nitrone, spin traps, DMPO, DMPOX, gold(III) ion
資源タイプ
資源タイプ journal article
著者 Nakajima, Akira

× Nakajima, Akira

WEKO 7727

en Nakajima, Akira

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Ueda, Yuto

× Ueda, Yuto

WEKO 8016

en Ueda, Yuto

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Endoh, Nobuyuki

× Endoh, Nobuyuki

WEKO 8373

en Endoh, Nobuyuki

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Tajima, Kunihiko

× Tajima, Kunihiko

WEKO 8374

en Tajima, Kunihiko

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Makino, Keisuke

× Makino, Keisuke

WEKO 8375

en Makino, Keisuke

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抄録
内容記述タイプ Abstract
内容記述 When cyclic nitrones, such as 5,5-dimethyl-1-pyrroline-N-oxide (DMPO),
4-phenyl-5,5-dimethyl-1-pyrroline-N-oxide (PDMPO), and
3,3,5,5-tetramethyl-1-pyrroline-N-oxide (M4PO) were mixed with hydrogen
tetrachloroaurate(III), DMPOX (5,5-dimethyl-1-pyrrolid-2-one-N-oxyl)-type free radicals
appeared with the precipitation of Au(0). The reaction did not proceed with non-cyclic
nitrones, such as N-tert-butyl-α-phenyl-nitrone (PBN) and
α-(4-pyridyl-1-oxide)-N-tert-butyl-nitrone (POBN). The order of the HAuCl4 decrease was
DMPO > PDMPO > M4PO. The reaction was depressed by the addition of chloride or
hydroxide ions. 1-Hydroxy-5,5-dimethyl-1-pyrrolid-2-one (HDMPN), the precursor of
DMPOX, was also oxidized to DMPOX by HAuCl4. Every step of gold reduction from
Au(III) to Au(0) can be used for the oxidation of HDMPN to DMPOX. Based on these and
previous results, the reaction was explained by the assumed scheme consisted of the ligand
exchange interaction of AuCl4
– with >N+-O– in DMPO, the nucleophilic addition of water
molecule to DMPO, the stepwise intra-molecular transfer of three electrons from DMPO to
Au(III), and the precipitation of Au(0).
言語 en
内容記述
内容記述タイプ Other
内容記述 Copyright notice:http://pubs.nrc-cnrc.gc.ca/eng/journals/copyright.html
言語 en
書誌情報 en : Canadian journal of chemistry
en : Journal canadien de chimie

巻 83, 号 8, p. 1178-1184, 発行日 2005-08
出版者
出版者 National Research Council of Canada
言語 en
ISSN
収録物識別子タイプ ISSN
収録物識別子 00084042
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA00597598
著者版フラグ
出版タイプ AM
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Cite as

Nakajima, Akira, Ueda, Yuto, Endoh, Nobuyuki, Tajima, Kunihiko, Makino, Keisuke, 2005, Electron spin resonance analysis of the oxidation reactions of nitrone type spin traps with gold(III) ion: National Research Council of Canada, 1178–1184 p.

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