substitution reaction
英 [ˌsʌbstɪ'tjuːʃ(ə)n riˈækʃn]
美 [ˌsʌbstɪ'tuʃ(ə)n riˈækʃn]
网络 取代反应; 取代反應; 置换反应; 取代的反应; 亲核取代反应
双语例句
- 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 - Influence of High-Intensity Magnetic Field on Substitution Reaction Rate on Slag-Metal Interface
不同强磁场条件对渣金界面反应速率的影响 - Amines can engage in nucleophile substitution reaction with alky.
胺能参加与卤代烷的亲核取代反应。 - 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 effects of reaction conditions on the substitution reaction were examined, and the chelating property of ASA-CPS resin for metal ions was tested.
考察了主要反应条件对取代反应的影响，初步试验了ASA-CPS对金属离子的螯合性能。 - Effect of Biquadratic Coupling on Exchange Bias of Ferromagnetic and Antiferromagnetic Bilayer Films Preparation of Fe/ Cu Bimetallic Powders by Direct Substitution Reaction
双二次耦合场对铁磁/反铁磁双层膜中交换偏置场的影响直接置换法制备包覆型铁铜双金属粉末的工艺研究 - Preparation of Fe/ Cu Bimetallic Powders by Direct Substitution Reaction
直接置换法制备包覆型铁铜双金属粉末的工艺研究 - Results show that the substitution reaction occurred mainly on the amine groups of chitosan.
结果表明，壳聚糖合成HTCC的取代反应主要发生在壳聚糖的氨基上； - Thermodynamic calculations clarify that the substitution reaction is accelerated by the rise in concentration and temperature of plating solution.
通过热力学计算表明，置换反应速度随镀液浓度的增大和温度的升高而增大。 - 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。 - Solvent's Influence on Nucleophilic Substitution Reaction's Rate
溶剂对亲核取代反应速率的影响 - This paper describes a fluorometric method for detecting the cyanide content in the body fluid by substitution reaction.
本文报道了应用取代反应检测体液中氰含量的荧光光度法。 - It theoretically discusses that temperature affects the competition of the substitution reaction between the elimination reaction in the ethanol dehydration reaction.
从理论上讨论了乙醇脱水反应中，温度对取代和消除竞争的影响。 - The conjugated double bond in tung oil molecular with high activity can take place substitution reaction with one of ortho or para hydrogens of phenol.
桐油的共轭双键具有极强的反应活性，易与苯酚芳环上邻或对位的活性氢发生傅氏取代反应。 - In this paper, research progress in the studying of high efficiency halogenation agent in recent years was reviewed and the application of a series of high efficiency halogenating reagents in halogenating substitution reaction and halogenating addition reaction were introduced.
本文对近年来在高效卤化试剂研究方面取得的进展进行了综述，介绍了系列高效卤化剂在卤化取代反应、卤化加成反应等方面的应用。 - 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。 - Studies on Use of NMR for the Aromatic Electrophilic Substitution Reaction
NMR在芳基亲电取代反应中的应用研究 - Study on Structure Changed of Substitution Reaction of [ Co ( NH_3)_4CO_3] Cl and NH_4SCN
用气相色谱研究[Co（NH3）4CO3]Cl与NH4SCN取代反应中配合物的结构变化 - Substitution reaction, addition reaction, cyclization reaction and polymerization reaction can be conducted because of the conjugated double bond involved in its molecule, and therefore it is widely used in synthetic rubber and organic synthesis.
由于其分子中含有共轭二烯，可以发生取代、加成、环化和聚合等反应，使得其在合成橡胶和有机合成等方面具有广泛的用途。 - The electrophilic reaction of methyl pyropheophorbide-a ( MPP-a) demonstrates that the electrophilic addition reaction and the electrophilic substitution reaction occur on the vinyl group at 3-position and 20-meso-position, respectively.
焦脱镁叶绿酸a甲酯与溴素的亲电反应表明：在3位乙烯基上发生亲电加成反应，而与20位的meso氢则发生亲电取代反应。 - 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。 - Substitution reaction of Br-carried with liquid bromine and NBS, which to compare the two methods in yield and operation, improve yeild and optimize the method. 3.
分别用液溴和NBS进行Br-的取代反应，比较了两种方法的收率和操作，提高了收率，优化了方法。 - The functional polymer of azide-polyethylene glycol-thiol was successfully synthesized by selective substitution reaction and hydrolysis reaction, characterized by IR, NMR and GPC* 3.
利用选择性取代反应、水解反应，成功的制备出了叠氮化巯基聚乙二醇这一功能聚合物，并对其中间产物及最终产物进行了红外、核磁、凝胶渗透色谱的表征。 - 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。 - At present, the substitution reaction through C-C bond has not been reported yet.
目前，通过C-C键连的取代反应还未见其他报道。 - 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。 - As an electrophilic agent, the methyl group of methoxy species can directly attack benzene ring to produce toluene via electrophilic substitution reaction.
甲氧基物种的甲基作为一种亲电试剂，可以直接进攻苯环发生亲电取代烷基化反应生成甲苯。 - 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。