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题名: Steric effects of substituents of quinones on the oxygenation of ethylbenzene catalyzed by NHPI/quinone and the catalytic oxidation of ascorbate
作者: Yang, Xiaomei1;  Wang, Ying1;  Zhang, Chaofeng1;  Fang, Tao1;  Zhou, Lipeng1;  Zhang, Wei2;  Xu, Jie2
关键词: ascorbate ;  ethylbenzene ;  oxidation ;  quinone ;  steric effects
刊名: JOURNAL OF PHYSICAL ORGANIC CHEMISTRY
发表日期: 2011-08-01
DOI: 10.1002/poc.1810
卷: 24, 期:8, 页:693-697
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Organic ;  Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: The substituents of quinones play an important role in modulating the kinetics of the electron-and proton-transfer reaction. In this paper, the steric effects of substituents of quinones on their catalytic performance were studied in the oxidation of ethylbenzene and ascorbate. The substituents limited the addition of the free radicals to the C=C double bonds of the quinone ring because of the steric hindrance. On the other hand, too many substituents hindered the contact between the active site (C=O) of quinone and the reactant. So, the quinones with two substituents presented better catalytic performance than those with more or less substituents. These results will be helpful in designing the quinone compounds for drugs and in understanding the catalytic behavior of quinones in biochemistry. Copyright (C) 2010 John Wiley & Sons, Ltd.
关键词[WOS]: N-HYDROXYPHTHALIMIDE ;  CELL-DEATH ;  HYDROCARBONS ;  REACTIVITY
语种: 英语
WOS记录号: WOS:000293594100011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142441
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Zhengzhou Univ, Dept Chem, Zhengzhou 450001, Henan, Peoples R China
2.Chinese Acad Sci, State Key Lab Catalysis, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Yang, Xiaomei,Wang, Ying,Zhang, Chaofeng,et al. Steric effects of substituents of quinones on the oxygenation of ethylbenzene catalyzed by NHPI/quinone and the catalytic oxidation of ascorbate[J]. JOURNAL OF PHYSICAL ORGANIC CHEMISTRY,2011,24(8):693-697.
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