synthetic reaction

There was a main by product in the synthetic reaction of nopol from β pinene.

在由β蒎烯制备诺卜醇的反应中，有一种主要的副产物。

A analysis method of the bis ( 2,2,6,6_ tetramethyl_ 4_ piperidyl) maleate ( BPM) in synthetic reaction solution by ion suppression chromatography is discussed.

建立了用离子抑制色谱法分析二（2，2，6，6－四甲基－4－哌啶基）马来酸酯合成反应液的方法。

As an environmentally benign chemical process, using near-critical or supercritical water as synthetic organic reaction medium has received increased attention.

作为一种环境友好的化学工艺过程，以超（近）临界水作有机合成反应介质越来越受到人们的关注。

The cross-coupling reaction has recently become one of research focuses in organic synthetic chemistry.

交叉偶联反应是目前有机合成化学研究的热点之一.

The properties of chromium-free lignosulfonate LGV in relation to its synthetic reaction time

合成反应时间对LGV无铬木质素降粘剂性能的影响

A qualified amphoteric ionic surface active agent is achieved in a lab through an organic synthetic reaction.

通过有机合成反应，在实验室制得符合条件的两性离子型表面活性剂。

This Paper focus on recent synthetic development of aza-Wittig reaction in nitrogen heterocyclic and explains some mechanism of the reaction of carbonyl compounds with organic azides and tertiary phosphines.

本文阐述了羰基通过叠氮化物和三价膦形成的亚胺基膦的作用，以氮杂wittig反应的方式，合成含氮杂环化合物的进展。

Its synthetic principle, process, factors on reaction control and effects of the product on concrete performance are described.

本文介绍了其合成原理、合成方法、反应控制因素及成品对混凝土性能的影响。

A qualified amphoteric ionic surface active agent achieved in a lab through an organic synthetic reaction.

通过有机合成反应,在实验室制得符合条件的两性离子型表面活性剂.

In the prossess, the synthetic reaction of bromomtromethane is complicacy and much influence factor.

其中溴代硝基甲烷的合成反应过程复杂,影响因素众多.

Two synthetic methods of organosilicon compounds were adapted. Comparing the merits and demerits of the two methods, we found that it is convenient to use Grignard reagent in the reaction in almost same yield.

采用两种方法对有机硅化合物的合成进行了初步的探索，并比较了两种合成方法的优缺点，发现在产率大致相同的条件下，格式试剂法的后处理比较方便。

The synthetic reaction process, the molecular weight distribution and coagulation effect were investigated.

初步研究了这类混凝剂的合成反应过程和分子量分布，深入探讨了其除浊效果、残留铝浓度、除油效果和电泳特性。

The synthetic reaction appeared to be third order.

结果表明此条件下戊二酸二甲酯的合成表现为三级不可逆反应。

Influencing factor for explosion of branched chain reaction in system of synthetic ammonia

合成氨生产系统中支链反应爆炸的影响因素

Prevention of accidents of branched chain reaction explosion in synthetic ammonia plant

合成氨厂支链反应爆炸事故的预防