1) electrophilic addition halogenation
亲电加成卤化
1.
On the basis of the second mechanism of vinyl chloride synthesis,the authors propose definitely that the reaction mechanism of vinyl chloride synthesis is that of unsaturated hydrocarbon electrophilic addition halogenation,and make researches in the new mechanism.
在第二种氯乙烯合成反应机理的基础上,明确提出氯乙烯合成为不饱和烃的亲电加成卤化机理,并对该机理进行了阐述。
2) halogenating substitution reaction
卤化加成
1.
In this paper, research progress in the studying of high efficiency halogenation agent in recent years was reviewed and the application of a series of high efficiency halogenating reagents in halogenating substitution reaction and halogenating addition reaction were introduced.
本文对近年来在高效卤化试剂研究方面取得的进展进行了综述,介绍了系列高效卤化剂在卤化取代反应、卤化加成反应等方面的应用。
3) electrophilic addition
亲电加成
1.
Comparsion of the electrophilic addition activity between monoene and conjugated diene;
单烯与共轭二烯亲电加成反应活性的比较
2.
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 。
3.
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。
4) Electrophilic addition reaction
亲电加成
1.
When alkene’s electrophilic addition reaction is judged through the traditional view of Markovnikov’s rule, the asymmetric alkene shoulod contain a hydrogen atom.
用传统意义上的马氏规则判断烯烃的亲电加成反应时,不对称试剂中必须含氢原子,并且烯烃的结构和试剂的构成也有要求,因而有局限性。
5) electrochemical hydrodehalogenation
电催化加氢脱卤
6) electrophilic addition reaction
亲电加成反应
1.
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。
补充资料：亲电加成
亲电加成
有机化学中的概念，对进攻试剂而言，如果是获取电子倾向强烈的，如卤素、氯化氢（中的h+）等，与烯、炔加成反应时，先是由亲电的部分（h+、x+）进攻多电子的烯、炔键，称亲电加成。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。