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.
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.
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.
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.
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.
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.
在相转移催化反应体系中，超声能够取代相转移催化剂，使反应顺利进行。
Ultrasound may replace phase transfer catalysts in phase transfer catalysis reactions and facilitate the reaction.
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.
丙酰基二茂铁和4-取代氨基脲反应制得8个相应的缩氨基脲1～8，它们均属首次制得。
Propionyl ferrocene reacted with 4-substituted semicarbazides converted into corresponding semicarbazones 1-8, which are not prepared previously.
本文报道用环加成-芳构化串连反应制备多取代芳香族化合物的方法。
The synthesis of polysubstituted aromatic compounds by using tandem cycloaddition aromatization reaction was reported.
该反应提供了一种合成5或7-位取代胆甾烯烃衍生物方便和实用的方法。
This reaction provided a convenient and practical method of synthesizing 5- or 7-substituted cholestene derivatives.
本文以噻吩与溴、锌粉依次发生取代，还原反应生成3-溴噻吩。
Thiophene reacted with bromine and zinc to obtain 3-bromothiophene via substitution and reduction reaction.
本论文是关于共轭烯炔酮与硝酮化合物反应生成多取代的呋喃化合物的研究，主要从三个方面进行了研究。
In this thesis, we have focused on the synthesis of highly substituted furan by the cycloaddition reaction of conjugated enynones with nitrones.
它与环氧树脂混合后首先形成过渡状态，然后按双分子亲核取代(SN2)机理进行开环反应。
After it was mixed with epoxy resin, transition state was formed first. Then they got on with opening ring reactions according to bimolecular nucleophilic substitution mechanism (SN2).
它与环氧树脂混合后首先形成过渡状态，然后按双分子亲核取代(SN2)机理进行开环反应。
After it was mixed with epoxy resin, transition state was formed first. Then they got on with opening ring reactions according to bimolecular nucleophilic substitution mechanism (SN2).
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