本文主要介绍非金属亲电试剂活化酰胺或炔酰胺制备的烯酮亚胺盐。
This paper describes the keteniminium salts formed by electrophilic activation of amides or ynamides with non-metal electrophilic reagents.
氢的替代亲核取代反应(VNS)是与硝基芳环的亲电反应、亲核反应不同的一种新反应。
Vicarious nucleophilic substitution (VNS) of hydrogen is a new type of reaction which is different from the usual electrophilic and nucleophilic reactions of the nitro arenes.
甚至忠诚人士也不能幸免：一位亲克里姆林宫的评论员弗拉基米尔•索洛维耶夫在一无线电广播中怒称，“人类有别于猪之处”就在于其选择的权利——无论是对食物还是对服装。
Even the loyal are not immune: in a radio broadcast, Vladimir Soloviev, a pro-Kremlin commentator, fumed that the right to choose, whether food or clothing, "separates humans from pigs".
主要介绍了含亲电基团的荧光探针检测生物体系中毓基化合物及还原型谷胱甘肽硫转移酶活性的研究进展，并提出本论文的研究设想。
This dissertation consists of five chapters summarized as follows:In chapter 1, the research progress on fluorescent probes containing electrophilic moiety for thiols and GST were summarized.
从电性角度讨论了有机物分子的亲电性和亲核性问题，并阐述了两者在有机合成中的应用。
In this paper, electroaffinity and nucleophilicity of organic compound have been investigated, and their application in organic synthesis also has been discussed.
作为亲电体的羰基与作为亲核体的H，C，N和O的羰基化合物反应。
Reactions of Carbonyl Compounds with the Carbonyl Group as an Electrophile with H, C, N and O Nucleophiles.
亲电性化学物是环境中的主要污染物，所以越来越引起环境科学研究者的高度关注。
Electrophile chemical is the major pollutant in the environment, this is very concerned by many of environmental scientists.
烷基取代的炔丙基硫缩酮衍生物，则能利用相对应的末端炔和碘烷亲电基进行取代反应所获得。
However, alkyl-substituted propargylic dithioacetals could be synthesized by the displacement reaction of the corresponding terminal alkynes with alkyl iodides.
极性转换的本质是有机化合物反应中心碳原子电性发生转换，即亲电性或亲核性发生转换的过程。
The essence of polar conversion is that organic compound reflects the carbon atom electricity in the centre and changes, kiss the electricity or kiss the core course changing.
并且对亲核试剂的体积效应、溶剂效应对亲核性影响，底物上吸电子基团的数目、吸电子能力对亲电性的影响，以及亲核取代反应的发生部位受哪些因素影响进行探讨。
At the same time, discuss about the impact factor to nucleophilicity such as the number of attract electron group, ability of attract electron and the nucleophilic substitution reaction part.
并且对亲核试剂的体积效应、溶剂效应对亲核性影响，底物上吸电子基团的数目、吸电子能力对亲电性的影响，以及亲核取代反应的发生部位受哪些因素影响进行探讨。
At the same time, discuss about the impact factor to nucleophilicity such as the number of attract electron group, ability of attract electron and the nucleophilic substitution reaction part.
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