Amines can engage in nucleophile substitution reaction with alky.
胺能参加与卤代烷的亲核取代反应。
Abstract: Polyvinyl chloride can be made by ethylene, chlorine and catalyst through substitution reaction.
摘要:聚氯乙烯可由乙烯、氯和催化剂经取代反应制成。
Quaternarization is an important SN2 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。
The rearrangement of allylic double bond took placed in the course of these reaction. 6—12 are able to undergo a lot of electrophilic substitution reaction.
产物是双键经过重排的取代烯丙基二甲基甲氧基硅烷6—10,该产物可进行一系列亲电取代反应。
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.
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。
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.
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%。
Five derivative dyes from the parent dyes were obtained by similar nucleophilic substitution reaction in which five primary amines were employed as the nucleophilic reagent.
将母体染料的中位氯原子用氨基试剂亲核取代,衍生合成了五个中位仲胺七甲川菁染料。
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。
This suggested the possibility that the formation of poly aluminum silicate sulfate was resulted from the substitution reaction of certain portion of the aluminum in the poly aluminum sulfate.
聚合硅酸硫酸铝是硅以与铝类似的结构形态取代聚合硫酸铝中的部分铝而形成的。
Thiophene reacted with bromine and zinc to obtain 3-bromothiophene via substitution and reduction reaction.
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。
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.
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。
X-ray photoelectron spectroscopy (XPS) indicated that the higher reaction activity of alkyl halide, the more alkyl substitution degree on hydroxyl group of chitosan.
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。
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。
Moclobelide was synthesized from ethanolamine by nucleophilic substitution and Schotten-Baumann reaction, followed by condensation with an overall yield of 71.2%.
以乙醇胺为起始原料,经亲核取代、肖特一鲍曼反应和缩合反应制得吗氯贝胺,总收率可达71.2%。
The effects of reaction temperature, reaction time and amount of NaOH on the degrees of substitution of products were discussed by orthogonal test.
通过正交实验,研究了氢氧化钠用量、反应温度和反应时间对取代度和反应效率的影响。
The effects of sodium hydroxide, reaction temperature, reaction time, acrylamide concentration on the reaction efficiency and degree of substitution were studied.
考察了碱用量、反应温度、反应时间、丙烯酰胺浓度对反应效率和取代度的影响。
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.
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。
In this reaction, besides substitution products thiophenol etc, the reduction product benzene is formed.
反应中,除生成笨硫酚等取代产物外,还生成。
The influences of reaction temperature and time, the amount of sulfuric acid and water on the degree of substitution were investigated.
分别考察了反应时间、反应温度等对取代度的影响。
In addition, the catalytic effect of W5 and substitution effect on the reaction mechanisms and reaction barriers have also been considered.
此外,还研究了不同取代基和催化剂五羰基合钨对反应机理及反应位垒的影响。
Due to the strong electron-withdrawing property of CF3 - group the substitution of ortho-chloro shows a higher probability, implying the in-principle feasibility of the reaction.
由于此物质中CF 3具有强吸电子能力,所以其邻位的氯更易被取代,这就说明此反应理论上是能够发生的。
The effects of the molar ratio of activated tapioca starch to maleic anhydride, the reaction temperature and reaction time on degree of substitution of esterified starch were examined.
讨论了活化木薯淀粉与马来酸酐的摩尔比、反应温度、反应时间对酯化淀粉取代度的影响。
Whole effect of the reaction is that the substitution of chlorine for phenolic hydroxy on fluorescein. The reaction mechanism is certificated by the key intermediate found in the work.
反应的结果是氯取了荧光素的酚羟基,反应机理由本工作找到的关键中间体证实。
The synthesis of metallocene, the effects of substitution in cyclopentadiene ring, reaction medium for synthesis and separation of chiral metallocene have been highlighted.
重点介绍了金属茂的合成方法及环戊二烯环上的取代基、溶剂对合成及分离旋光性金属茂的影响。
The risk of reaction using phosgene could be avoided effectively by substitution of triphosgene for phosgene, and application of triphosgene in production with broad prospect was believed by author.
用三光气代替光气合成化合物能有效消除光气的危险性,在生产中具有较广泛的应用前景。
With the reaction of starches and phosphors oxychloride, the swelling of cross linked starch granules was controlled successfully through different degrees of substitution.
利用淀粉与三氯氧磷的交联反应,通过控制交联反应程度,成功地控制了交联淀粉颗粒的膨胀程度并使其停留在不同的溶胀阶段。
With the reaction of starches and phosphors oxychloride, the swelling of cross linked starch granules was controlled successfully through different degrees of substitution.
利用淀粉与三氯氧磷的交联反应,通过控制交联反应程度,成功地控制了交联淀粉颗粒的膨胀程度并使其停留在不同的溶胀阶段。
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