查询词典 esterification

Dioctyl sebacate was prepared by esterification of 2 ethylhexyl alcohol and sebacic acid in catalysis of aluminate.

以癸二酸与2－乙基己醇为原料，铝酸盐为催化剂，合成了癸二酸二辛酯。

A series of mono-, sesqui-, di- and tri-terpenoids with various structural types, which produced by bio- oxidation, hydrogenation, hydrolyzation, esterification and cyclic cleavage toward-limenone, were analyed by GC-MS.

经GC-MS分析发现该两细菌对-柠檬烯有显著的生物催化转化作用，能对底物进行不同程度的氧化、还原、水解、酯化、开环等反应，并产生丰富的系列结构不同的其它萜类化合物：包括单萜、倍半萜、二萜、以及三萜等。

The title compound was synthesized from shikimic acid via eight steps, including esterification of acid, proctection of hydroxy etc., and partial procedure was modified for easy industrialization.

本论文参考文献方法，以莽草酸为原料，通过酯化，丙酮叉保护等六步反应合成了目标化合物，并对部分反应条件进行了优化。

The esterification of mixing binary acid with ethanol was carried out under silicotungstic acid as catalyst in this experiment.

以混合二元酸为原料酸，硅钨酸为催化剂，与无水乙醇进行酯化反应制备混合二元酸二乙酯。

Diamyl glutarate ; synthesis ; esterification ; silicotungstic acid ; catalyst

戊二酸二正戊酯；合成；酯化；硅钨杂多酸；催化剂

It is reviewed that sulfamic acid can be utilized as a green catalyst in many important organic reactions such as esterification and transesterification,group protection,imino-Diels-Alder,rearrangement,substitution and condensation.

综述了近年来氨基磺酸作为一种绿色催化剂在有机合成中的应用，主要包括酯化与酯交换、基团保护、氮杂Diels-Alder、重排、取代及缩合等反应。

In this paper, the emulsifier sodium polyether sulfovinate modified polysiloxane was synthesized by sulfuric acid esterification between chlorosulfonic acid and polyether modified polysiloxane, then alkali neutralization. It was a kind of nonionic and anionic composite emulsifier.

本论文以聚醚改性聚硅氧烷为原料，进行硫酸酯化反应，并进一步用碱中和，合成了聚醚改性聚硅氧烷硫酸酯钠乳化剂，该乳化剂属于非离子、阴离子复合型乳化剂。

Rape oil ; transesterification ; esterification ; oxidation ; sulphitation ; leather fatliquoring

菜籽油；酯交换反应；酯化反应；氧化反应；亚硫酸化反应；皮革加脂剂

Starting from tetrafuran, 2_(4_Aminosulfonylphenyl)_4H_1,2_thiazine_1_dioxide, an antiepileptic drug with special structure, was obtained via esterification, sulphonation, chloridization, condensation and cyclization.

以四氢呋喃为原料，经酯化、磺化、酰氯化、缩合、环化等步骤，合成了化学名为 4_(四氢_2H_1，2_噻嗪基_2 )苯磺酰胺_S_S_二氧化物的抗癫痫药舒噻嗪，通过IR、1HNMR和元素分析对其结构进行了表

Synthesis of the antiepileptic tiagabine hydrochloride;2. Starting from tetrafuran, 2_(4_Aminosulfonylphenyl)_4H_1,2_thiazine_1_dioxide, an antiepileptic drug with special structure, was obtained via esterification, sulphonation, chloridization, condensation and cyclization.

以四氢呋喃为原料，经酯化、磺化、酰氯化、缩合、环化等步骤，合成了化学名为 4_(四氢_2H_1，2_噻嗪基_2 )苯磺酰胺_S_S_二氧化物的抗癫痫药舒噻嗪，通过IR、1HNMR和元素分析对其结构进行了表

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。