反应的

With solid state synthesis method,the expression of rate of reaction is detected and order of reaction and activation energy are defined.

本文通过固相合成的方法，对反应速率进行了测定，确定其反应的反应级数和活化能分别为4。

Through experiment, we have found that the combination of naphthol/sodium naphtholate is a high efficient bifunctional catalyst for direct aldol reaction.

通过实验，我们发现并筛选出了一组活性较高的β-萘酚和其钠盐双功能催化剂，该方法不需要预先活化Aldol反应的底物就能直接反应，且反应可在室温进行，条件温和，速度快，收率高达98%。

The alkalinity change in the process can indicate the style and extent of the dominant reaction.

反应过程中的碱度变化可以指示反应器内主导反应的类型及其反应进度。

In the course of oxidation, reaction temperature should rise step by step, and in the late stage, reduced pressure distillation should follow so that the concertration of gly oxalic acid can rise and production rate of allantoin can rise up to 40%.

在氧化反应的过程中逐步地提高反应温度，反应后期进行减压浓缩，提高了乙醛酸的浓度，缩短了氧化时间，并使尿囊素産率达到40%。

The fact that increasing solvent polarity increases the reaction rate supports to the conclusion that the ammonolysis of α-CDA with trimethylamine follows SN2 mechanism.

增加溶剂极性对α-CDA的三甲胺氨解反应有利，表明反应具有SN2反应的特征。

Through screening of lipases, lipase Novozym435 was found to show the highest activity and enantioselectivity for the ammonolysis of CHBE. The effect of different solvents on the ammonolysis was investigated.

经过对脂肪酶及反应溶剂的筛选，确定最佳脂肪酶及溶剂分别为Novozym435和二氧六环；并在该反应体系中考察了温度、底物浓度、酶浓度与摇床转速对反应的影响。

Part 2. Annulation reaction of 3, 4-dichlorocoumarin (1) and 3, 4-dichloromaleimide (8) by a new general annulation strategy developed in this group with 2-phenylbenzofuran (15), 3-phenylbenzofuran (16), 2, 5-diphenyloxazole (17), 2, 5-diphenylthiazole (18), 2-methyl-4-phenylthiazole (19) and 2, 3-dimethoxy-1, 3-butadiene (40) were investigated.

二。在本课题组前一阶段提出的从二氯代环烯酮与1，1-二芳基乙烯的光化反应以及光化反应中得到的环丁烷产物的连续电环化反应对3，4-二氯马来酰亚胺以及3，4-二氯香豆素进行增环反应的工作基础上，研究了3，4-二氯香豆素（1）和3，4-二氯马来酰亚胺（8）与5个α-苯基取代的环烯烃2-苯基苯并呋喃（15），3-苯基苯并呋喃（16），2，5-二苯基噁唑（17），2，5-二苯基噻唑（18），2-甲基-4-苯基噻唑（19），以及一个丁二烯——2，3-二甲氧基丁二烯（40）进行的芳香族增环反应。

The effects of the composition of catalyst (the structure and amount of bident ligand and strong acid, the cocatalytic activity of Cu〓, the roles of methanol and phenol etc.) and the copolymerization condition (the reaction time, temperature, amount of ST and CO, the structure and amount of dilution reagent etc.) on catalytic activity were studied in detail. Also the optimum copolymerization condition was chosen.

深入考察了催化体系组成（含氮双齿配体的结构与用量、强酸的结构与用量、铜盐的助催化作用、醇类与酚类化合物的作用等）和沉淀共聚反应条件（共聚反应的温度与时间、稀释剂结构与用量、苯乙烯与一氧化碳量等）对该共聚反应的催化活性的影响，优化共聚反应的聚合条件。

The effects of reaction factors of oxidation, grafting copolymerization and chelation on the corrosion and scale inhibition performance of modified product were studied.

实验研究了影响氧化反应、丙烯酸接枝共聚反应和螯合反应的各因素对木素磺酸钠改性产物缓蚀阻垢性能的作用规律。

Catalytic activities of phosphotungstic acid for liquid-phase nitrations of benzene,toluene and chlorobenzene were studied.

研究了磷钨酸对苯、甲苯和氯苯液相硝化反应的催化活性，考察了反应温度、反应时间、硝酸与芳烃摩尔比对芳烃转化率和产物选择性的影响。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失