查询词典 bromination

Based on this, the technological process of purification after the bromination was reasonably simplified and the yiel...

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。

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。

Monomeric percentage of conversion measured by bromination and average molecular weight measured by viscosity method are also carried out.

用溴化法测定单体转化率，用粘度法测定聚合物的相对分子质量。

The new methods for the synthesis were taken,which are mainly bromination in the media of carbon tetrachloride and catalytic hydrolysis ...

新合成方法是将中间产物在四氯化碳介质中溴化，然后进行甲醇钠催化水解

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。

It is advisable to use 1 M concentration of bromine in DCM instead of pure bromine and of course to conduct the bromination in a fume-hood.

将得到的无色黄色溶液转移到冰镇的烧瓶中，边搅拌边加入体积比20：100浓盐酸：异丙醇的混合物，直到溶液对pH 试纸呈酸性。

During baking, bromates are completely reduced to bromide s with no bromination of flour constituents.

在焙烤过程中，不用通过面粉各组分的溴化作用，溴酸盐也会全部彻底地还原成溴化物。

With the aid of the methyl acrylamide as an internal standard, acrylamide was derivatized through bromination and determined by GCIMS.

建立了油炸方便面中丙烯酰胺的气相色谱－质谱联用内标分析方法。

We expounded the N-alkylation, tricholroacetylation and bromination of pyrrole in chapter two.

第二章，论述了吡咯的N-烷基化、三氯乙酰化及溴代反应。

I was just taking her hand, to help her out of a car, and I knew it.

我只是握着她的手，扶她下车，但我知道这一切。

China and South Korea have excoriated Japan over its approval of new school books which they say whitewash the atrocities committed during Japanese occupation, and anti-Japanese protests have been held in Chinese cities. The lingering bitterness over Japan's past imperialism still threatens to mar relations between the big East Asian powers

中国和韩国强烈谴责日本通过新的中学历史教科书，他们认为这一教科书掩盖了日本在其占领期间所犯下的残酷暴行，反日抗议活动在中国数座城市发生，历史上日本帝国主义制造的痛楚无法被忘却，这有可能破坏东亚强国间的关系。