乙氧基

结果表明，乙氧基甲叉氰乙酸乙酯是致敏原。

The result indicated that ethoxy methylene cyanacetic ester is sensitive agent .

3-乙氧基-4-羟基扁桃酸的合成研究

Synthesis of 3 - Ethoxy - 4 - hydroxymandelic Acid

C（12～14）醇乙氧基化反应催化剂的研究

Study on the Catalyst in Ethoxylation Reaction of C_ ( 12-14 ) Alcohol

方法以中间体4-氨基-5-氯-2-乙氧基苯甲酸和中间体B、C为原料合成目标产物。

METHODS The target compound was synthesized from 4-amino-5-chloro-2-ethoxy benzoic acid and intermediate B and C.

4-[2-（N，N-二甲胺基）乙氧基]苯甲醛肟的合成

Synthesis of 4 - [ 2 - ( Dimethyiamino ) ethoxy ] benzaldoxime

目的：研究四种人工半合成槲皮素水溶性衍生物，即乙氧基槲皮素、槲皮素磷酸酯（B）、槲皮素单硫酸酯和槲皮素二硫酸酯对凝血酶诱导兔血小板聚集的影响。

Objective : To study the effects of four water soluble derivatives of quercetin on rabbit platelet aggregation induced by thrombin .

气液色谱法研究C8芳烃在N-（对乙氧基苄叉）对氨基苯甲腈液晶中的溶液热力学，液晶的相变

Thermodynamic Studies on Solutions of C_8 Aromatics in N - ( p-Ethoxybenzylidene ) - p-aminobenzonitrile Liquid Crystal , the Phase Transition of Liquid Crystal by GasLiquid Chromatography

双共振~1HNMR方法测定聚硅氧烷中羟基、乙氧基和乙烯基的含量

Determination of hydroxyl , ethoxyl and vinyl content of poly ( dimethyl siloxanes ) by double irradiation ~ 1h NMR

本工作由自制乙氧基铝和五氯化钼，在玻璃基底上热解沉积制得合适电阻率的次级发射膜Al2O3∶Mo（？）

In the present method , Al2O3 : Mo secondary emission film has been made from thermal decomposition of home-made Aluminium ethoxide and Molybdenum pentachloride .

由乙氧基铅配合物制备纳米PbO

Preparation of Nano-PbO from Ethoxy-lead Complex

本文将BP人工神经网络应用于对N（2）-乙酰基-9-[（2-乙酰氧乙氧基）甲基]鸟嘌呤的制备工艺条件研究，获得了较好的工艺参数与收率之间的映射关系。

In this paper , a kind of BP ANN was designed to study on the process condition of N ( 2 ) acetyl 9 [ ( 2 acetoxylethoxyl ) methyl ] guanine preparation .

采用气相色谱法（GC）测定了不同脂肪酸甲酯乙氧基化物（MEE）中未反应的脂肪酸甲酯的质量分数。

The contents of the unreacted fatty acid methyl ester in different fatty acid methyl ester ethoxylates ( MEE ) were determined by gas chromatography .

采用振荡培养实验和活性污泥模拟实验对大豆油乙氧基化合物（SOE）进行了生物降解研究。

The biodegradability of soybean oil ethoxylates ( SOE ) was studied by means of shake culture test and activated sludge simulation test .

乙氧基化是在催化剂的催化作用下，环氧乙烷（EO）与含有活泼氢的化合物发生的开环加成反应，是工业中生产聚氧乙烯醚型非离子表面活性剂的重要方法。

Ethoxylation is significant in the polyoxyethylene ether nonionic surfactants industry that are base-catalyzed reactions of hydrophobic substrates containing active hydrogen .

结果表明，中间体龙脑酰基二酯的最佳合成条件为：乙氧基镁丙二酸酯和D龙脑酰氯的物质的量配比为1∶14，反应时间为4h，反应温度为在乙醚溶液中回流；

Results show that the optimal esterifying conditions are the ratio of 1 ∶ 1.4 and the reaction time of 4 h under reflux .

负载型双核金属乙氧基配合物催化剂Cu2（OEt）2/SiO2采用表面改性法制备。

The Cu 2 ( OEt ) 2 / SiO 2 was prepared by surface reaction modification and ion-exchange method .

乙氧基化制得的烷基酚聚氧乙烯醚产品分子量分布窄，浊度高，外观色泽好，副产物聚乙二醇（PEG）低。

The poly-oxyethylene alkyl phenyl ether obtained by calcium oxide catalyst had perfect quality with narrow molecular weight distribution , high cloud point , good appearance and low by - product PEG .

乙氧基化（Ethoxylation）是环氧乙烷（EO）与含有活泼氢的化合物发生开环加成的反应，常用于生产非离子表面活性剂。

Ethoxylation is used to produce nonionic surfactants that are ring-opening addition reactions of hydrophohic substrates containing active hydrogen with ethylene oxide .

目的观察EE急性染毒大鼠睾丸某些酶活性和血清睾酮水平变化，探讨2乙氧基乙醇（EE）致睾丸损伤的可能机理。

Objective To observe the effect on certain enzyme activities of testis and serum testosterone level , and explore the possible mechanism of testis damage in rats exposed to EE .

接触2-乙氧基乙醇对LDH-C4活性影响与精子毒性的关系

Effects of 2-ethoxyethanol on activity of LDH-C4 and relationship between its expo - sure and sperm toxicity

利用连续管式反应器对以KOH为催化剂的均液相月桂醇乙氧基化反应合成醇醚的动力学进行了研究，获得了其简化的动力学模型和反应速度常数k。

The kinetics of homogeneous phase dodecyl alcohol ethoxylation for alcohol ether synthesis has been studied in the presence of KOH catalyst with a continuous tubular reactor . A simplified kinetic model and the reaction rate constant were obtained .

通过对几种碱金属、碱土金属盐催化剂的考察，研究了斯本－80的乙氧基化反应，筛选出DF－1型新型催化剂。

The ethoxylation of span-80 catalyzed by several alkali metal salts and alkali earth metal salts has been studied in this article . The new catalyst ( DF-1 ) was found effective for the ethoxylation .

方法采用个体采样，毛细柱气相色谱分析技术及PCR检测方法，比较不同基因型个体累计接触EE剂量与2乙氧基乙酸（EAA）浓度对数值回归直线的回归系数。

Methods Personal monitoring , gas chromatographic determination and PCR methods were conducted in this study . Regression coefficients of EE exposure vs. 2 ethoxyaceticacid ( EAA ) were compared between genotype A and genotype B workers .

方法：采用分光光度法分别测定小鼠肝微粒体细胞色素P450、b5含量及氨基比林N-脱甲基酶（ADM）、7-乙氧基香豆素O-脱乙基酶（ECD）、苯并芘羟化酶（AHH）。

Methods Liver microsomal cytochrome P 450 , b 5 , aminopyrin N-demethylase ( ADM ), 7-ethoxycoumarin O-deethylase ( ECD ), and Benzopyrene hydroxylase ( AHH ) activity were determined by UV chromatography .

文中还将SAE的性能与非离子表面活性剂伯醇乙氧基化物（PAE）、壬基酚乙氧基化物（NPE）及阴离子表面活性剂十二烷基苯磺酸盐（LAS）进行了比较。

Properties of SAE were compared with nonionic surfactants like primary alcohol ethoxylate ( PAE ), nonylphenol ethoxylate ( NPE ), and anionic surfactants like dodecyl benzene sulfonate ( LAS ) in the report .

建立一种顶空气相色谱法（HS-GC）测定乙基纤维素乙氧基含量的方法。

This study demonstrated a headspace gas chromatography ( HS-GC ) method to measure the ethoxyl content of ethyl cellulose with toluene as internal standard .

乙氧基化同时是一类特殊反应，反应强放热，反应物EO易燃、易爆、易分解、聚合、有毒，对生产装置的安全性要求非常高。

Ethoxylation is a special kind of chemical reaction and is highly exothermic reaction . In addition , ethylene oxide is a very reactive , flammable and explosible reactant . So the requirement of security for the plant is very high .

研究了以无水碳酸钠为催化剂，红霉素肟与甲氧基乙氧基氯甲醚（MEMC）为原料，一步合成罗红霉素的实验过程。

The experimental process on synthesis of roxithromycin was studied by using erythromycin oxime and MEMC as raw material under the catalytic action of anhydrous sodium carbonate .

此外，模拟结果还表明EO聚合速度对换热介质流量的敏感性高于对改变换热介质进口温度的敏感性。（2）对外循环乙氧基化反应热的利用问题进行了研究。

In addition , the simulation results show that ROP of EO is more sensitive with the flow rate of HTM than the inlet temperature of HTM . ( 2 ) Utilizing of reaction heat of external loop ethoxylation plant was studied .

以苯作为起始原料，经过Friedel-Crafts酰基化反应、黄鸣龙还原、皂化和酯化等合成了其关键中间体4-（4-乙氧基-4-氧正丁基）苯甲酸乙酯（6），收率为36.6%。

The key intermediate , Ethyl 4 - ( 4-ethoxy - 4-oxobutyl ) benzoate ( 6 ), was obtained from benzene via Friedel-Crafts acylation , Huang reduction , saponification followed by acidification and esterification in 36.6 % yield .