溴

This experiment chooses a kind to contain 1 ％ bromine phenol orchid and the methanol solution of 5 ％ water serve as bromic phenolic chemistry to enhance reagent.

本实验选取一种含有1％溴酚兰和5％水的甲醇溶液作为溴酚化学增强试剂。

The effects of different ratio of reacting material, concentration and temperature were studied in the bromination reactions.

研究了溴化反应中反应物物质的量比、反应物浓度、温度付溴代反应的影响。

The studies of the effect of ZnBr_2 on the bromination of C_(60)and fulleropyrrolidines were also carried out,and the products were characterized by UV-vis and IR spectroscopy.

并研究了溴化锌在C_(60)、C_(60)吡咯烷衍生物溴化过程中的作用，产物经紫外可见吸收光谱、红外吸收光谱表征。

In part three oxidation of bromide with an ion-supportedbenzene in ionic liquids afforded a clean path for bromination of alkenes. It was found that this reaction is highly stereoselective.

在离子液体中使用离子支持的二乙酸碘苯氧化溴离子，提供了一条清洁的烯烃加溴途径，发现反应具有高的立体选择性。4。

Four bromocarbazoles were synthesized through direct bromination method.

用直接溴化法合成了 4种不同取代的溴代咔唑。

The total synthesis of the title compound 10 was accomplished starting from 3,5-dimethoxybenzoic acid (1) and p-hydroxybenzaldehyde (6). In the process, esterification, reduction, bromination and Wittig-Homer reaction were performed.

以3，5-二甲氧基苯甲酸为起始原料，经过甲醇酯化、氢化铝锂还原、四溴化碳溴代和Wittig-Homer反应，高产率的合成了Wittig-Homer试剂(5)。

Bromacil was synthesized using 2-bromobutane and urea as the starting materials in three steps including condensation,cyclization and bromination with total yield of 61%.

以2-溴丁烷和尿素作为起始原料，经缩合、环化、溴代三步反应得到除草定，总收率为61%。

Tar-acenaphthene was used as starting material which was converted to 4,5-dibromo-1,8-naphthalimide through bromination, oxidation, condensation, and other steps.

以焦油苊为原料经溴化，氧化，缩合，等步骤合成了4，5-二溴取代-1，8-萘酰亚胺。

The structure of BNRL and the mechanism of Natural Rubber Latex's bromination were studied by Infrared Spectroscopy and Nuclear Magnetic Resonance.

结果表明：溴原子已经接到天然橡胶分子链上，其C－Br键对应的红外光谱位置分别为1088cm-1、956cm-1、908cm-1、774cm-1；天然胶乳的溴化反应机理与BNRS的相似。

The effects of solvent on the bromization reaction and oxidant on the formolation reaction of the target product were studied. The results show that the optimum solvent for the bromization reaction and the optimum oxidant for the formolation reaction of the target product were carbon tetrachloride and ceric ammonium nitrate, and their yields were 86.7% and 89.3% respectively.

同时就溴化反应中的溶剂以及甲酰化反应中的氧化剂对两类反应的影响分别进行了研究，结果表明溴化反应的最佳溶剂为四氯化碳，反应产率达到86.7%，甲酰化反应的最佳氧化剂为硝酸铈铵，产率达到89.3%。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。