substitution reaction
取代反应：化学中的一种反应
常用释义
英式发音
美式发音
基本释义
- 取代反应：化学中的一种反应，其中一个官能团被另一个官能团所取代。
例句
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1·Amines can engage in nucleophile substitution reaction with alky.胺能参加与卤代烷的亲核取代反应。
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2·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。
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3·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。
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4·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。
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5·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。
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6·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%。
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7·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。
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8·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。
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9·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。
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10·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。