nucleophilic

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。

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In this paper, the recent progress of organic reactions in aqueous media, such as condensation reaction, nucleophilic substitution reaction, cycloaddition reactions, Barbier-type and multi-component reaction, and their applications are reviewed.

本文综述了近年来对水介质中的有机反应的研究成果，包括缩合反应、亲核加成反应、环加成反应、Barbier反应和多组分反应等，及其在有机合成中的应用研究进展。

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The reactive intermediate of Fenton reagents is a nucleophilic adduct.

Fenton试剂的活性中间体是一亲核加合物，其反应活性及其产物不同于游离态羟自由基的反应活性及产物。

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Progress on the Study of Nucleophilic Acylation Reactions

亲核酰化反应的研究进展

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Comparing the~ ( 31) PNMR,~ ( 13) C NMR and DEPT of reactant with those of ring-opening products, we reached the conclusion that the nucleophilic opening ring occurred at the terminal carbon having less stereo-hindrance.

通过比较反应物和产物31PNMR，13c NMR及DEPT，得出了开环反应是发生在五元环的端碳原子上。

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12 kinds of benzimidazole polymers-poly aromatic benzimidazole were prepared by nucleophilic substitution reaction with fluoride aromatic compounds, and the properties of the two systems were analyzed and compared.

与二氟芳香化合物通过亲核取代反应，制得12种具有新型结构的苯并咪唑聚合物&聚芳基苯并咪唑，并对两个体系的晶型结构、溶解性和热性能进行了分析和比较。

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Modification of Anthraquinone Dyes based on Nucleophilic Substitution

基于亲核取代蒽醌染料的改性

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Electronic effect of nucleophilic additions to α, β-unsaturated aldehyde and ketone

α，β-不饱和醛酮亲核加成的电子效应

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The carbon should be susceptible to attack by a nucleophilic species.

碳容易被亲核试剂进攻.

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Chapter two is concerned with the syntheses and characterization of some chiral ligands and consists of relevant mechanism of reaction ( for example, N anion acts as nucleophilic reagent and different nitriles act as reacting substance).

第二章讨论了若干手性配体的合成与结构，并包含了相关反应的机理探讨（例如N~-做为亲核试剂、不同的腈作为反应底物）。

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Route ⅱ, OLL grafted to dextran via its terminal carboxylic acid group with the presence of nucleophilic reagent and coupling reagent.

路线Ⅱ为在亲核试剂及偶合剂的存在下，OLL末端羧基接枝葡聚糖。

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Directing Effects in Aromatic Substitution . Nucleophilic Aromatic Substitution . Strategies in the Synthesis of Multisubstituted Benzene Derivatives.

亲电芳香取代反应的定位效应. 亲核芳香取代反应. 合成多取代苯衍生物的策略.

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Quaternarization is an important SN 2 nucleophilic substitution reaction; solvent has remarkable effect on it.

季铵化反应是一类重要的SN2亲核取代反应, 溶剂对该反应的影响很显著.

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This article analyzed nucleophilic substitution mechanism of amidation reaction which was the key step in new process, the effect factors such as catalyst type, catalyst volume, solvent and temperature were also involved.

其中酰胺化反应是关键步骤，文章分析了该反应的亲核取代机理及催化剂种类、催化剂用量、溶剂、温度等条件对反应的影响。

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Many groups can be added by nucleophilic substitution on a diazonium salt.

许多基团可通过向得自胶的重氮盐作亲核取代而加以导入.

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N-Butyl benzoate was synthesized with sodium benzoate and n-butyl bromide as starting materials through nucleophilic substitution reaction in the presence of catalyst of tetrabutyl ammonium bromide under microwave irradiation.

研究了在四丁基溴化铵催化下，采用微波辐射由苯甲酸钠和溴代正丁烷发生亲核取代反应合成苯甲酸正丁酯。

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The results show that the method which synthesize sulfoacetic acid disodium by using chloroacetic acid and ethyl chloroacetate as raw material and sulfite sodium as sulfonating agent by nucleophilic substitution reaction is feasible.

结果表明：以氯乙酸和氯乙酸乙酯为原料采用亲核取代反应合成磺酸乙酸钠是可行的。

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Aromatic compounds are easy to take place nucleophilic addition and nucleophilic substitution.

带有吸电子基团的芳环容易与亲核试剂发生亲核加成或亲核取代反应.

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METHODS: Electrophilic substitution, reduction, oxidation and nucleophilic addition reaction were used in the synthesis of title compounds.

方法：通过亲核取代、还原、氧化、亲核加成等反应得到目的化合物。

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Theoretical study of nucleophilic aromatic substitution reaction catalyzed by human glutathione S-transferase M1a-1a

人类谷胱甘肽S-转移酶M1a-1a催化的亲核芳香取代反应的理论研究

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Study on Thermokinetics of the nucleophilic addition reaction for cyclohexanone with semicarbazide

环己酮与氨基脲的亲核加成反应的热动力学研究

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Kinetic study of nucleophilic substitution reactions of N-methylimidazole with hemin chloride high chloride emulsions

N－甲基咪唑与氯高铁血红素取代反应动力学

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Nucleophilic Aromatic Substitution . Strategies in the Synthesis of Multisubstituted Benzene Derivatives.

亲核性芳香取代. 多取代苯衍生物合成的策略.

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The first is extremely resistant to nucleophilic reagents.

前者极端地阻抗亲核试剂.

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A preferential 1,2 elimination reaction of syn diethyl ( 2-acetylamino-1-bromo-2-( p-methoxy-phenyl) ethyl) phosphonate 1 rather than the anticipated nucleophilic substitution reaction under basic conditions is described in the present paper.

报道了在碱性条件下，顺（2-乙酰胺基-1-溴-2-（对-甲氧基苯基）乙基）膦酸二乙酯进行的是-1,2-消除反应而不是所期望的亲核取代反应。

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By comparing VNS with the electrophilic substitution and nucleophilic substitution of nitro aromatic, the definition of VNS is explained.

将VNS与硝基芳环的亲电反应、亲核反应做比较，阐述了VNS的定义；

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The nucleophilic ability of the amines had effect on the yields of the amines as well.

胺的亲核能力对醯胺的收率也有一定的影响.

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The nucleophilic aromatic substitution for hydrogen reaction is an environmentally benign organic synthesis reaction.

芳香亲核取代氢反应是一种环境友好的有机合成反应.

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Theoretical Study on Nucleophilic Addition-Condensation Reaction of Thiosemicarbazide with Aldehyde and Ketone

氨基硫脲与醛酮加成&缩合反应理论研究

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A stepwise nucleophilic displacement involving 36 was highly unlikely.

涉及(36)的这种逐步亲核取代是不大可能的.

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