查询词典 halogenating

Students should grasp the predominant type and the characteristic of the halogenating reaction and its application in industry, the halogenate method employing different halogenating agents, specially some halogenation method models frequently applied in industry.

掌握卤化反应的主要类型和特点及其在工业上的应用。掌握不同卤化剂的卤化方法，特别是一些典型的在工业上经常应用的卤化方法。

Students will have an understanding of the function of the halogenating reaction in the industrial organic synthesis.

了解卤化反应在工业有机合成中的作用。

The consecutive diffusion reaction in porous catalyst particles is a very important kind of chemical reactions,such as hydrolysis,halogenating,and oxidizing reactions.

在多孔固体催化剂颗粒中的串连扩散反应是非常重要的一类化学反应，如水解反应，卤化反应和氧化反应等。

The conversion of alcohols to alkyl halides was investigated using acidic ionic liquid X as halogenating agent, acidic catalyst as well as medium.

2以酸性离子液体X兼作卤代试剂、反应介质和酸性催化剂，研究了醇转化为卤代烃的反应。

In this project, we have prepared conveniently Si-Mg 1,1-difunctional group reagents-α-silylvinyl Grignard reagents by hydromagnesiation of alkynylsilanes; Se-Br 1,1-difunctional group reagents-α-bromovinylselenides by hydrobromination of alkynylselenides; Sn-Br and Sn-I 1,1-difunctional group reagents by hydrozirconation of alkynylstannanes followed by halogenating reaction.

本项目通过炔基硅烷的镁氢化反应，方便地制得了Si-Mg 1，1-双官能团试剂-α-硅基烯基镁化物；通过炔基硒醚的溴氢化反应，方便地制得了Se-Br 1，1-双官能试剂-α-溴代烯基硒醚；通过炔基锡烷的锆氢化反应，继而卤代方便地制得了Sn-Br和Sn-I 1，1-双官能试剂。

The conversion of alcohols to alkyl halides was investigated using acidic ionic liquid X as halogenating agent, acidic catalyst as well as medium. The reactions of primary alcohols gave very satisfactory conversions and selectivities except for the substrates with lower boiling point,such as n-octanol and benzyl alcohol. They obtained the corresponding halides with almost quantitative yields(95%-100%).The secondary alcohols also gave the corresponding halides with excellent conversions, however, the by-products of dehydration were detected.

伯醇除某些低沸点底物外，都以高转化率(最高达100％)和高选择性(最高达100％)转化为相应的氯代烃、溴代烃和碘代烃，例如正辛醇、苯甲醇，在X中进行卤代反应得到令人满意的结果，无论氯代、溴代还是碘代得到卤代产物的收率一般都很好华东师范大学化学系01级博士学位论文(95十100%)，极少有重排产物及脱水产物被检测出来。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐