1) 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。
2) 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。
3) 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。
5) 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。
6) nucleophilic addition
亲核加成
1.
Electronic effect of nucleophilic additions to α, β - unsaturated aldehyde and ketone;
α,β-不饱和醛酮亲核加成的电子效应
2.
A series of 1-substituted isoquinolines were synthesized through the nucleophilic addition reaction of Grignard reagents to isoquinolines under the activation of benzyl chloroformate and aromatization in the presence of Pd/C.
在氯代甲酸苄酯活化下,利用格氏试剂对异喹啉进行亲核加成,得到1-取代-2-苄氧羰基-1,2-二氢异喹啉,然后在Pd／C／HCO2NH4体系中进行芳构化,得到1-取代异喹啉。
3.
By nucleophilic addition r.
将化合物1与糖基异硫氰酸酯发生亲核加成反应,合成了一系列6-O-[N-(2,3,4,6-四-O-乙酰基糖基)硫代氨甲酰基]-1,2:3,4-二-O-异亚丙基-α-D-吡喃半乳糖(5a~5e)。
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。