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Kinetic Study of the Electron-Transfer Oxidation of the Phenolate Anion of a Vitamin E Model by Molecular Oxygen Generating Superoxide Anion in an Aprotic Medium
https://repo.qst.go.jp/records/43280
https://repo.qst.go.jp/records/432803479e376-ca55-425f-89d0-424c128a695a
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2003-11-25 | |||||
タイトル | ||||||
タイトル | Kinetic Study of the Electron-Transfer Oxidation of the Phenolate Anion of a Vitamin E Model by Molecular Oxygen Generating Superoxide Anion in an Aprotic Medium | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Nakanishi, Ikuo
× Nakanishi, Ikuo× Miyazaki, Kentaro× Shimada, Tomokazu× Iizuka, Yuko× Inami, Keiko× Mochizuki, Masataka× Urano, Shiro× Okuda, Haruhiro× Ozawa, Toshihiko× Fukuzumi, Shunichi× Ikota, Nobuo× Fukuhara, Kiyoshi× 中西 郁夫× 小澤 俊彦× 伊古田 暢夫 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Electron-transfer reduction of molecular oxygen (O2) by the phenolate anion (1-) of a vitamin E model, 2,2,5,7,8-pentamethylchroman-6-ol (1H), occurred to produce superoxide anion, which could be directly detected by a low-temperature EPR measurement. The rate of electron transfer from 1- to O2 was relatively slow, since this process is energetically unfavourable. The one-electron oxidation potential of 1- determined by cyclic voltammetric measurements is sufficiently negative to reduce 2,2-bis(4-tert-octylphenyl)-1-picrylhydrazyl (DOPPH) radical to the corresponding one-electron reduced anion, DOPPH-, suggesting that 1- can also act as an efficient radical scavenger. | |||||
書誌情報 |
Organic & Biomolecular Chemistry 巻 1, 号 22, p. 4085-4088, 発行日 2003-11 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1477-0520 |