通过磷酰氯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。
The chiral HMPA analogues were prepared in high yield by nucleophilic substitution between the chiral secondary amine and phosphoryl chloride.
胺能参加与卤代烷的亲核取代反应。
Amines can engage in nucleophile substitution reaction with alky.
提出自由基ips O亲核取代反应机理。
摘要：聚氯乙烯可由乙烯、氯和催化剂经取代反应制成。
Abstract: Polyvinyl chloride can be made by ethylene, chlorine and catalyst through substitution reaction.
介绍了环氧氯代烃的两种化学反应：取代反应和开环反应。
Two reactions of epichlorohydrocarbon that is opening-ring and substitute reaction were introduced, at the same time, some kinds of medication made from epichlorohydrin were introduced .
氨基- 1,2,4 -三唑与苦基氯的亲核取代反应动力学研究。
Kinetics of the Nucleophilic Substitution of 3-amino-1, 2, 4-triazole with Picryl Chloride.
本文对近几十年来金属配合物取代反应机理及溶剂效应的研究进行了综述。
This paper reviews the research on mechanism and solvent effects on substitute reaction of metal complex compounds in recent decades with more than 80 references.
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。
Quaternarization is an important SN2 nucleophilic substitution reaction; solvent has remarkable effect on it.
通过柠檬酸钾和四硫代钨酸铵的配位取代反应合成了双核钨氧柠檬酸配合物。
The binuclear tungsten citrate complex was synthesized by the reaction of (NH4)2WS4 with potassium citrate, and characterized by IR and elemental analysis.
生化实验也证实了消除反应产生的碳碳双键产物和取代反应产生的连接产物。
Consistently, biochemical assays showed that the SpvC-catalyzed reaction can generate both double bond-containing and covalently linked products.
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。
The chiral HMPA analogues 1 and 2 were prepared in high yield by nucleophilic substitution between the chiral secondary amine and phosphoryl chloride.
从金属羰基化合物和氧原子转移试剂两个方面讨论了影响CO取代反应速率的各种因素。
Various factors relating to the metal carbonyls and to the o atom transfer reagents that effect the rates of CO substitution are discussed.
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.
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.
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。
The effect of process conditions, such as microwave, reactant ratio, catalyst and solvent etc, on the nucleophilic substitution and yield of product were investigated.
各种含有酮或醛的芳基三氟甲磺酸酯在催化量的钯和膦配体的存在下与胺或酰胺发生取代反应。
Various aryl triflates, bearing ketone or aldehyde groups, were evaluated for palladium-mediated introduction of an amino group at the triflate position in the presence of various phosphine ligands.
这就说明，我们可以通过前驱体的取代反应和通过改变反应体系的条件来制备具有预期结构的化合物。
This just show that we can get compounds which have anticipative structure through substitution reaction of precursor or by changing the reactive condition of the system.
本文综述了近十年来强碱阴离子交换树脂支载的高分子试剂在氧化，还原，卤化和亲核取代反应中的应用。
This review deals with the recent application of strongly basic anion exchange resins as polymer supported reagents in oxidation, reduction, halogenation and nucleophilics substitutions, etc.
从而用微扰分子轨道理论半定量地解释了脂肪族的游离基取代和芳香族的游离基取代反应的反应性和选择性。
The reactivities and selectivities of aliphatic and aromatic free-radical(substitution)reactions were explained semi-quantitatively by the perturbation molecular orbital theory.
龙胆酸在氢氧化钠水溶液中的反应，不仅有氧化还有取代反应，氧化之后紧接着进行取代反应，本文都给予了解释。
The ESR spectra of chemical reactions of gentisic acid in sodium alkoxide-alcohol were different from those in sodium hydroxide aqueous solution.
前言：结合双分子亲核取代反应机理，对乙醇和盐酸反应过程进行分析，合理确定了工业生产乙基氯的工艺路线。
Combine with the"S N2 "mechanism, after analyses the reaction process of alcohol and hydrochloric acid, we reasonably determined the industrial process for the production of Ethyl chloride.
两条路线中关键的一步反应是芳胺和溴代化合物的亲核取代反应，一般这步反应产率很低，并且需要较长的反应时间。
The key step of the two routes is the reaction of nucleophilic substitution of aromatic amines and -bromo compounds. Generally the produce rate of this reaction is low and the reaction time is long.
对烷基化壳聚糖进行X射线光电子能谱分析表明，随着卤代烷试剂反应活性的增高，发生在壳聚糖羟基上的烷基取代反应增多。
X-ray photoelectron spectroscopy (XPS) indicated that the higher reaction activity of alkyl halide, the more alkyl substitution degree on hydroxyl group of chitosan.
以2,3 -二氯苯胺为原料，经3步亲核取代反应合成了阿立哌唑。3步反应的收率分别为83%，91%和90%；总收率68%。
Aripiprazole in overall yield of 68% was synthesized from 2, 3-dichloroaniline by a three-step nucleophilic substitution reaction in yield of 83%, 91% and 90%, respectively.
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.
以硫酸化蓖麻油和季铵盐（ETA）为原料，在一定的反应条件下，硫酸化蓖麻油分子中的羟基与ETA发生取代反应，合成季铵型两性表面活性剂，与其它物质复配成两性皮革加脂剂。
The amphoteric surfactant was synthesized by sulfuric castor oil and ETA. The reaction condition of surfactant were deeply studied. The amphoteric fat liquor was recombinated with other surfactants.
报道了通过串联环加成芳构化反应合成多取代芳族化合物的方法。
The synthesis of polysubstituted aromatic compounds by using a tandem cycloaddition aromatization reaction was reported.
报道了通过串联环加成芳构化反应合成多取代芳族化合物的方法。
The synthesis of polysubstituted aromatic compounds by using a tandem cycloaddition aromatization reaction was reported.
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