electrophilic addition
英
美
亲电加成；亲电加成反应
双语例句
- Because the reaction initiated by the attachment of an electrophile, the process is called an electrophilic addition reaction.
因为反应是由亲电试剂的附加而开始的，所以这个过程叫做亲电加成反应。 - Four conditions against Markovnikov'rule on electrophilic addition to alkenes and alkyl halides are discussed, and a theoretical explanation is made as well.
介绍了烯烃与卤化氢的亲电加成反应中四种反马氏规则的类型，并作出了理论解释。 - The rate constants of radical and electrophilic addition to alkenes are dominated by different factors.
烯烃的自由基加成和亲电加成速率受不同的因素控制。 - Several problems on the electrophilic addition reaction of alkenes
烯烃、炔烃亲电加成反应难易探讨 - Several Conditions against Markovnikov 'Rule on Electrophilic Addition to Unsymmetrical Alkenes
不对称烯烃亲电加成中几种反马氏规则的类型 - 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。 - Electrophilic addition, which is the principal reaction of cyclization;
亲电加成，它是成环的主要反应； - The double bond of cyclopentenyl on Cp with HBr, halogen underwent normal electrophilic addition reaction.
茂环上环戊烯基的双键与HBr和卤素发生正常的亲电加成反应。 - For electrochemical degradation of 4-CP, the C-Cl bond was broken and chlorine ion was taken away from the benzene ring as a result of electrophilic addition reaction of hydroxyl radical. The combination technologies of reduction dechlorination and oxidation degradation were proposed.
电化学氧化降解中C-Cl键断裂是羟基攻击苯环发生亲电加成反应的结果，继而提出还原脱氯和氧化降解结合的工艺。 - Iso-butene and methanol etherification proceeds according to the electrophilic addition mechanism, Iso-butene makes protonation reaction as the proton acceptor under the acid catalyst function, being born the positive carbon ion, intermediate products react rapidly with nucleophilic reagent ( CH3O-) to produce MTBE.
异丁烯在酸性催化剂作用下作为质子的接受体发生质子化反应，生成正碳离子；作为中间产物的正碳离子，再迅速同亲核试剂CH3O-反应，生成MTBE。 - 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。 - Synthesis of the substance from aniline and hexafluoroacetone involves electrophilic addition, acylation and reduction.
其合成一般是以苯胺和六氟丙酮为起始原料，经过亲电加成、酰化和还原三步反应。 - Second, we completed the selective N-alkylation and electrophilic addition of pyrrole ionic liquids [ Bmim] [ BF4], [ Bmim] [ PF6].
第二、我们成功地在离子液体[Bmim][BF4]、[Bmim][PF6]中实现了选择性进行吡咯的亲核取代和亲电加成反应。