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学科主题: 有机化学
题名: Study of the coupling reaction of pyridine in the gas phase
其他题名: 气相中吡啶的偶联反应研究
作者: Yao SJ(姚胜军) ; Zhang X(张祥) ; Zhang L(张磊) ; Wang CH(王翠红) ; Guo YL(郭寅龙)
通讯作者: 郭寅龙
刊名: Rapid Commun. Mass Spectrom.
发表日期: 2007
卷: 21, 期:11, 页:1739-1744
收录类别: SCI
部门归属: 上海有机所上海质谱中心
英文摘要: The coupling reaction of pyridine in the gas phase to form bipyridyl and terpyridyl has been studied by electron ionization using an ion trap mass spectrometer. In contrast to the difficulty in carrying out electrophilic substitutions at carbon atoms in the pyridine ring under highly acidic solvent conditions, reactions in the gas phase overcame the conjugate acidification of pyridine in the solvent phase, thus decreasing the hardness of this electrophilic coupling. Through product ion mass spectra of the ion at m/z 157, we have shown that this ion was protonated bipyridyl rather than the ion/ molecule adduct. A computational study of the heat of formation surface also supported the formation of polypyridyls through the electrophilic substitution of pyridine. We have confirmed the reaction through a study of pyridine-d(5) Coupling in the gas phase. Copyright (C) 2007 John Wiley & Sons, Ltd.
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000246763400005
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/19958
Appears in Collections:分析化学研究室_期刊论文

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Recommended Citation:
Yao SJ,Zhang X,Zhang L,et al. Study of the coupling reaction of pyridine in the gas phase[J]. Rapid Commun. Mass Spectrom.,2007,21(11):1739-1744.
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