溴化反应

据此在合成CLT酸中合理地简化了溴化反应后提纯的工艺步骤，产率提高2%，且对最终产品的质量和使用性能没有不良影响。

Based on this , the technological process of purification after the bromination was reasonably simplified and the yield was increased by 2 percent in the synthesis of CLT acid , the quality and performance of the final product have not been affected .

本论文以没食子酸为起始原料，通过酯化反应、单甲醚化反应、溴化反应、环合反应和Ullman反应合成了α-联苯双酯。

α - DDB was synthesized by using gallic acid as initial material , through esterification reaction , monomethyl ether reaction , bromination reaction , cyclization reaction and Ullman reaction .

NBS与Cp2Ti（OC6H5）2溴化反应的研究

Study on reaction of NBS with Cp_2Ti ( OC_6H_5 ) _2

介绍了杂多酸催化剂在Friedel-Crafts酰基化和烷基化反应、Diels-Alder反应、酯化反应、环缩合反应、重排反应、溴化反应、氧化反应及不对称催化反应等有机合成反应中的应用。

The use of heteropolyacids as the effective and green catalysts in Friedel-Crafts acylation and alkylation reactions is reviewed , and some other important organic reactions using heteropolyacids catalyst are also introduced , such as Diels-Alder reaction , esterification , condensation , rearrangement , bromination , oxygenation and asymmetry catalysis etc.

[Bmim]Br3对酮的选择性单溴化反应

Selective α - Monobromination of Ketones with [ Bmim ] Br_3

线性聚醚溴化反应的动力学研究

A Study of the Kinetics of the Bromination Reaction of linear Polyether

方法：革除溴化反应，对醚化反应进行了优化。

METHODS : Abolishing of brominating step and optimizing of etherifying reaction .

作者认为溶剂是使溴化反应具选择性的一种重要因素。

It was found that solventplayed an important role in the selective bromination .

硝基三苯醚的溴化反应

Bromination substitution reaction of nitro - triphenyl ether

一种温和的、选择性的芳胺单溴化反应

A mild , selective monobromination of aromatic amines

溴化反应较不易发生。

Bromination takes place less readily .

芳胺的区域选择溴化反应

Regioselective bromination of aromatic amines

应用这种自制的恒温比色池测定了丙酮溴化反应的动力学参数。

Kinetic parameters of Bromination reaction of Acetone have been determined by means of this self-made cell .

多羟基苯乙酮的α-溴化反应研究

Study on Bromination of Hydroxyacetophenones

探讨优化了酰化反应和溴化反应的反应条件，这三步反应的收率分别为80.9%，78.0%和84.7%。

The yields for acylation , bromination and hydrolysis were 80.9 % , 78.0 % and 84.7 % , respectively .

以水杨醛为原料，经缩合、还原、酰化、脱甲基、溴化反应制得苯溴马隆，总收率40.6%。

Benzbromarone was synthesized from salicylaldehyde by condensation with chloroacetone , reduction , acylation , demethylation and bromination with 40.6 % overall yield .

本文主要介绍对传统的二苯氧基化方法生产工艺中间的苯氧基化、硝化、溴化反应的改革方法和原理。

This paper mainly introduced the theoretical research of making benzaldehyde by toluene oxidation as well as the process development in Shijiazhuang Chemical Fibre Co.

优化溴化反应温度、液溴滴加速率、反应介质用量等溴化反应条件；

In the bromization reaction of LA , the reaction conditions such as reaction temperature , drop time of Br_2 and reaction medium were optimized .

研究了在惰性非极性溶剂和部分惰性极性溶剂中，以苯酚为原料进行直接溴化反应的溶剂效应、温度效应、浓度效应及催化剂的选择效应。

The effects of different solvents , temperatures , concentrations and catalysts on the ratio of p-bromophenol , o-bromophenol and 2,4-dibromophenol in the direct bromination of phenol .

在溴化反应中通过单因素试验得到溴化反应最佳反应条件：摩尔比2：1、反应物浓度0.5mol。

After the simple factor analysis experiments , the optimal operation conditions were decided : the molar ratio 2:1 ( PEGMMA / PBr3 ), reacting substance concentration 0.5 mol.

以青霉素G钾盐Ⅰ为原料，与对硝基溴化苄反应生成青霉素G的对硝基苄酯Ⅱ。

Penicillin G potassium salt (ⅰ) was reacted with p-nitro benzyl bromide to produce the 4-nitrobenzyl ester of penicillin G acid (ⅱ) .

再以D-脯氨酸为原料，先后与乙酰氯、三乙胺和（BOC）2O反应，最后与苯基溴化镁反应，经乙酸乙酯萃取制得目标产物R-二苯基脯氨醇。

Finally the title compound diphenyl [ ( R ) - pyrrolidin-2-yl ] methanol was obtained through reaction with phenyl magnesium bromide and extracting by ethyl acetate .

α-烯烃与溴化氢反应及端溴化物制备

The Reaction of Hydrogen Bromide and 1-Alkenes and Preparation of Primary Bromoalkanes

四丁基溴化铵合成反应动力学研究

Research on the Kintics of TBAB Synthetic Reaction

对羟基苯海因的溴化、酯化反应研究及其产物表征

Study of the Bromination and Esterification of 5 - ( 4-HydroxyPhenyl ) Hydantoin and Analysis of Products

以硝基甲烷和甲醛为原料，在碱性条件下经烷羟基化和溴化两步反应合成了溴硝醇。

Bronopol was synthesized from nitromethane and formaldehyde by hydroxyalkylation and bromination in the presence of alkali .

本文以电导法测定了四丁基溴化铵合成反应体系的浓度和时间的关系；

The relation concentration and time of system TBAB synthetic reaction is determinated by electrical conductance in this paper .

本文以邻苯二酚为原料，经亚甲基化，溴化两步反应合成4-溴-1,2-亚甲二氧基苯，以邻苯二酚计总收率78.3%。本实验方法操作简单，具有一定工业应用前景。

4-bromo-1,2 - ( Methylenedioxy ) benzene is synthesized from catechol through methylenation , bromination and in total yield 78.3 % .

实验结果表明，助剂四丁基溴化铵对反应有很大的调节作用，能使反应主要生成加成产物。

From the result of experiment we found that the additive tetrabutylammonium bromide played a key role in control formation addition products .

全氟烷基芳基酮与苯基溴化镁电子转移反应的EPR研究

EPR Studies on Electron Transfer Reactions Between Perfluoroalkyl Phenyl Ketones and Phenyl Magnesium Bromide