nucleophilic substitution
英
美
亲核取代
双语例句
- DFT Study of Nucleophilic Substitution at Sulfur The Removal of Zirconium and Chromium in the Process of Recovery of Am Cm and Pm from High-Level Radioactive Waste Liquor by High Speed Cation Displacement Chromatography
快速阳离子排代法提取镅锔钷时除去杂质元素锆铬的研究 - 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。 - The effect of process conditions, such as microwave, reactant ratio, catalyst and solvent etc, on the nucleophilic substitution and yield of product were investigated.
考察了微波技术、反应物料比、催化剂以及溶剂等主要条件对亲核取代反应和产物收率的影响。 - Most direct substitution of groups bound to an aromatic nucleus is limited to diazonium salts. Many groups can be added by nucleophilic substitution on a diazonium salt.
大多数连于芳核能被直接取代的基团仅限于重氮盐。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。 - Study of Nucleophilic Substitution Reaction of C-F Bond on a Benzene Ring under Activation of Hydrogen Bond PREPARATION OF CHITOSAN IMMOBILIZED WITH β-CD AT C_6 POSITION BY A NUCLEOPHILIC DISPLACEMENT REACTION
氢键活化的苯环上C-F键的亲核取代反应研究亲核取代法制备壳聚糖6-OH固载环糊精衍生物 - The vigour of two-parent progenies was likely to be similar. bimolecular nucleophilic substitution with allylic rearrangement
双亲本子代的生活力多半是相似的。含烯丙型重排双分子亲核取代 - The chiral HMPA analogues 1 and 2 were prepared in high yield by nucleophilic substitution between the chiral secondary amine and phosphoryl chloride.
以磷酰氯为原料通过与手性仲胺的亲核取代反应高产率地合成了手性HMPA类似物。 - 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。 - 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。 - The activation energy and rate constant of the allylation reaction was calculated in virtue of kinetic study. The kinetics study indicated that the allylation reaction of polyether was second order and its reaction mechanism was SN2 nucleophilic substitution.
进行了动力学研究，获得了反应活化能和各反应温度下的反应速率常数，同时研究结果表明烯丙基化反应级数为2，反应机理为SN2亲核取代反应。 - 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； - Solvent's Influence on Nucleophilic Substitution Reaction's Rate
溶剂对亲核取代反应速率的影响 - Difenoconazole was prepared from ( 2,4-dichloroacetophenone) followed by etherification, bromination, ketal reaction and nucleophilic substitution.
以2,4-二氯苯乙酮为起始原料，经醚化、溴化、缩酮化、亲核取代4步反应制得苯醚甲环唑。 - The applications of quaternary ammonium salt and crown ether as phase transfer catalysts for the nucleophilic substitution, anionic ring opening polymerization, and free radical polymerization are introduced.
介绍了季铵盐类及冠醚类相转移催化剂在高聚物的亲核取代反应、阴离子开环聚合反应及自由基聚合反应中的应用。 - Modification of Anthraquinone Dyes based on Nucleophilic Substitution
基于亲核取代蒽醌染料的改性 - Nucleophilic substitution of 3-amino-1,2,4-triazole with picryl chloride is reported. The relevant intermediate was separated, its structure determined and the possible reaction mechanism suggested.
测定了3－氨基－1，2，4－三唑参与的亲核取代反应动力学，并对相应中间体进行了分离和结构测定，给出了相应的反应历程。 - Study on the thermokinetics for nucleophilic substitution reactions of benzoyl chloride
苯甲酰氯亲核取代反应的热动力学研究 - The application of zeolite molecular sieves in fine organic synthesis, including condensation, esterification, oxidation, nucleophilic substitution and rearrangement, were reviewed.
综述了沸石分子筛在精细有机合成中的应用。详细介绍了沸石分子筛在缩合反应、酯化反应、氧化反应、亲核取代反应、重排反应中的应用进展。 - 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。 - The numerous types of DNA-templated organic synthesis, including reductive amination, nucleophilic substitution, Henry, Wittig olefination, photochemical ligation and multistep small-molecule synthesis, etc, are reviewed.
本文综述了模板DNA指导的多种类型的有机合成反应，包括还原胺化、亲核取代、Henry、Wittig烯化、光化学连接以及多步小分子的合成等反应； - Some microwave-accelerated reactions such as cyclization, stereo-selective alkylation, Suzuki coupling-reaction, reduction, oxidation and nucleophilic substitution are reviewed.
综述了近年应用于药物合成的微波促进的反应类型，包括环合、不对称烷基化、Suzuki偶合、还原和氧化、亲核取代等。 - Emphasis is placed on some nucleophilic substitution reactions for the chemical modification and functionalization of polystyrene, including synthesis route, reaction mechanism, and factors such as temperature, types and contents of the catalysts and solvents.
重点总结了亲核取代反应中聚苯乙烯类化合物的功能化及化学修饰，包括合成路线、反应机理、温度以及催化剂和溶剂的种类与用量等因素对反应的影响。 - A New Mechanism of Nucleophilic Substitution Reactions for Alkyl Halides& S_ ( RN) 1
卤代烷亲核取代反应的一种新机理&S（RN）1 - A novel energetic additive& polyazidodiphosphate was synthesized via esterification, ring opening and nucleophilic substitution reactions.
通过酯化、开环及亲核取代等反应，合成了一种新型含能添加剂&多叠氮双磷酸酯。 - Vicarious Nucleophilic Substitution of Hydrogen in Nitro Aromatics and Nitro Heteroaromatics
硝基芳环和硝基杂芳环中氢的替代亲核取代 - 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。 - The oxidation reaction consists of nucleophilic substitution reaction and a-elimination reaction which is the rate-determining step.
氧化反应由亲核取代反应和α-消除反应组成，α-消除反应是反应的速率控制步骤。 - Extending reaction time or temperature is beneficial to the nucleophilic substitution reaction of nitrochlorobenzene.
此时，延长体系的反应时间、提高体系的反应温度都有利于对硝基氯苯的亲核取代反应的进行。 - Hydrolysis of ester groups of HEMA occurred during the nucleophilic substitution reaction and post-processing.
HEMA在亲核取代及后处理过程中，酯键会发生水解，造成侧链上部分双键的丢失。 - Ionic liquid [ BMIM] PF6 can play a catalyst role in nucleophilic substitution reaction.
离子液体[BMIM]PF6可以起到一定的催化剂作用，有利于亲核取代反应的进行。