electrophilic的例句大全

The treatise advances a new method to judge two kinds of fixed group of benzoic ring on electrophilic substitutive reaction in benzoic ring.

对苯环上的亲电取代反应提出一种判断苯环上两类定位基的新方法。

When compared with the kinetic data of the reaction without PTCS, these compounds proved to be effective catalysts for the electrophilic reaction.

对比无催化剂存在时的动力学数据，证明这类化合物是有效的亲电取代反应的相转移催化剂。

The chloromethylation reaction consists of electrophilic substitution reaction and nucleophilic substitution reaction, the nucleophilic substitution is the rate-controlling step and the hydroxymethyl cation (+ CH20H) is the really effective electrophile.

氯甲基化反应由亲电取代反应和亲核取代反应组成，亲核取代反应是反应的速率控制步骤，羟甲基碳正离子（+CH2OH）；是真正有效的亲电试剂。

As an electrophilic agent, the methyl group of methoxy species can directly attack benzene ring to produce toluene via electrophilic substitution reaction.

甲氧基物种的甲基作为一种亲电试剂，可以直接进攻苯环发生亲电取代烷基化反应生成甲苯。

Michael reaction acceptors ( MRAs) are the biologically active molecules which contain electrophilic moieties, which directly or indirectly involved in the life processes, they are also regulators in many signaling pathways in cells, and play an important role in chemical biology studies.

迈克尔反应受体分子为一类含有亲电共轭体系官能团的生理活性分子，它们直接或间接参与许多生命过程，同时也是细胞中许多信号转导途径的调节者，在化学生物学研究中起着重要作用。

Vicarious nucleophilic substitution ( VNS) of hydrogen is a new type of reaction which is differ-ent 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。

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

Electrophilic Substitution Locating Index of Aromatic Hydrocarbon and Its Application

芳烃亲电取代定位指数的提出及其应用

Study of Reaction of Aromatic Electrophilic Substitution

芳香族亲电取代反应的研究

The study of the activity of aromatic and heteroaromatic compounds towards electrophilic substitution reactions

芳杂环亲电取代活性的研究

A simple recognization of the position of the aromatic ring in electrophilic substitution

芳环上亲电取代位置的简易判别法

This paper discusses the relation between the empirical parameter of chemical shifts in carbon-13 NMR spectra and orientation effect in electrophilic substitution.

本文研究了取代苯13C&NMR谱化学位移的经验参数与芳烃取代活性顺序以及亲电取定位效应的关系。

By comparing VNS with the electrophilic substitution and nucleophilic substitution of nitro aromatic, the definition of VNS is explained.

将VNS与硝基芳环的亲电反应、亲核反应做比较，阐述了VNS的定义；

Ten sulfo-group containing compound were tested whether they could be used as the phase transfer catalyst ( PT CS) for the electrophilic substitution in the solution of H2O/ CH3COONa-CH3COOH/ ClCH2Cl by measuring the coupling reaction rate constant.

选择了10个含磺酸基团的化合物作为相转移催化剂，测定其在H2O／CH2COOH－CH3COONa／ClCH2Cl体系中的亲电偶合反应速率常数。

The electron population on the imino-nitrogen atom is the largest, thus the mercuric acetate should first coordinate with imino-nitrogen atom in the process of the reaction and then subsequent electrophilic substitution takes place in the ortho-position of the.

分子中亚胺氮原子的电荷密度最大，在汞化反应过程中，亚胺氮原子首先与醋酸汞配位，然后再进行邻位亲电进攻，生成邻位汞化产物；

Study on electrophilic aromatic substitution of polydivinylbenzene

聚二乙烯苯的取代反应研究

bond polarity functional group free radical carbocation carbanion electrophilic reaction nucleophilic reaction

键的极性官能团自由基正碳离子负碳离子亲电反应亲核反应第二章

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。

the electrophilic reaction of nbs with substituted benzene and its application

NBS与取代苯的亲电反应及其应用

It will become deepen to the students'recognization in mechanism of Aryl electrophilic substitution.

这些问题的讨论将深化学生对芳烃亲电取代反应机理的认识.