查询词典 ethyl

A preferred form of the invention is a process comprising adding to a quantity of sodium which is covered with a hydrocarbon solvent boiling above 100°C., at least a chemically equivalent proportion of methyl, ethyl or a propyl alcohol, subsequently adding an approximately equivalent proportion of a dialkyl carbonate and of an alkyl phenylacetate, the alkyl groups in these two last-mentioned compounds being preferably the same as the alkyl radical of the above-mentioned lower aliphatic alcohol, heating the mixture to induce reaction and continually distilling out the alcohol formed from the reaction zone.

本发明的理想形式包括下面的工艺过程：把至少处于化学平衡的甲醇，乙醇或丙醇添加到覆盖着沸点超过一百摄氏度的碳氢化合物溶剂中，接着加入大约相同当量的二烷基碳酸酯和烷基乙酸苯酯，在刚才提到的化合物中，其烷基集团最好是和刚才提到的低级别脂肪族醇相同，然后加热反应混合物从而引导反应的进行，在反应区域通过连续蒸馏移除形成的醇类。

Process for the manufacture of a dialkylphenylethylmalonatewhich comprises adding to a quantity of sodium which is covered with a hydrocarbon solvent boiling above 100°C, at least a chemically equivalent proportion of methyl, ethyl or a propyl alcohol, subsequently adding an approximately equivalent proportion of a dialkylcarbonate and of an alkyl phenylacetate, the alkyl groups in these two last-mentioned compounds being preferably the same as the alkyl radical of the above –mentioned lower aliphatic alcohol, heating the mixture to induce reaction and continually distilling out the alcohol formed from the reaction zone and finally causing the sodio diethyl phenylmalonate so formed to interact with an ethylating agent.

生产二烷基苯基丙二酸酯的工艺过程：这包括这包括把至少处于化学平衡的甲醇，乙醇或丙醇添加到覆盖着沸点超过一百摄氏度的碳氢化合物溶剂中，接着加入大约相同当量的二烷基碳酸酯和烷基乙酸苯酯，在刚才提到的化合物中，其烷基集团最好是和刚才提到的低级别脂肪族醇相同，然后加热反应混合物从而引导反应的进行，在反应区域通过连续蒸馏移除形成的醇类。最后使所形成的钠代二乙基苯基丙二酸酯和乙基化试剂反应。

The control group were fed basal diet, group 1 to 3 were fed basal diet supplemented with 90,100,110 mg/kg of Lespedeza Bicolor crude extract, group 4 to 6 were fed basal diet supplemented with 60,70,80 mg/kg of ethyl acetate extract, group 7 to 9 were fed basal diet supplemented with 60,70,80 mg/kg of n-butanol extract.

试验期42 d。对照组饲喂基础日粮，1～3 组饲喂基础日粮加二色胡枝子粗提物90、100、110 mg/kg；4～6 组饲喂基础日粮加二色胡枝子乙酸乙酯萃取物60、70、80 mg/kg；7～9 组饲喂基础日粮加二色胡枝子正丁醇萃取物60、70、80 mg/kg。

The non-ethyl alcohol fatty liver occurrence to be possible to have, the high lipemia, the diet obese does not adjust, the endocrine disease, drug poisoning and so on causes.

非酒精性脂肪肝的发生可有肥胖、高脂血症、饮食不调、内分泌疾病、药物中毒等引起。

The compound of the invention is produced by drying 5Kg of malaytea scurfpea fruit seeds, and cold soaing and extracting for four times by 70% industrial alcohol, decompressing and concentrating lixivium to obtain alcohol extract, mixing by adding a right amount of water and extracting by using Sherwood oil and ethyl acetate.

本发明化合物是干燥补骨脂种子5Kg，用70％工业乙醇冷浸提取四次，浸出液减压浓缩得乙醇提取物，加适量水混溶，依次用石油醚、乙酸乙酯萃取。

Methods Star anise were extracted from Illicium verum Hook.f. using ethanol and ethyl acetate as solvents. After macron absorption resin layer separation, a kind of white fine powder shikimic acid were obtained. The extracted shikimic acid were determined for chemical qualitative analysis.

采用乙醇提取、乙酸乙酯等有机溶剂萃取八角茴香，经大孔吸附树脂柱分离，得到白色精细粉末的莽草酸，并对莽草酸进行化学定性分析，镇痛实验采用扭体法和温浴法，观察腹腔注射莽草酸溶液后小鼠痛阈潜伏期和扭体反应的次数，设阿司匹林和生理盐水为对照组。

Methods Star anise were extracted from Illicium verum Hook.f. using ethanol and ethyl acetate as solvents. After macron absorption resin layer separation, a kind of white fine powder shikimic acid were obtained. The extracted shikimic acid were determined for chemical qualitative analysis. Writhing test and warm bathing test were performed and observed the mice pain threshold latency and writhing reaction times after giving peritoneal shikimic acid extraction solutions.

采用乙醇提取、乙酸乙酯等有机溶剂萃取八角茴香，经大孔吸附树脂柱分离，得到白色精细粉末的莽草酸，并对莽草酸进行化学定性分析，镇痛实验采用扭体法和温浴法，观察腹腔注射莽草酸溶液后小鼠痛阈潜伏期和扭体反应的次数，设阿司匹林和生理盐水为对照组。

Objective: 1. To study the synthesis of N-[2-(cholester-yloxycarbonylamino) ethyl]carbamoylmethylated mannan ( chol-AECM-mannan).

目的：1。研究N-[2-乙基]甲氨酰甲基化甘露聚糖(chol-AECM-mannan)合成的途径。2。

To calculate the interactive parameters of DBP and mesitylene, o-ethyl-methylbenzene and 1,2,4-trimethylbenzene, the method of chromatography is used in the paper to measure γ~∞, along with the method of single parameter, to calculate the model parameters of the model of Wilson.

采用色谱法测定C_9各组分在邻苯二甲酸二丁酯中的无限稀释活度系数，结合单参数法模拟计算Wilson模型参数。

The binary and ternary VLE data of mesitylene, o-ethyl-methylbenzene and 1, 2, 4-trimethylbenzene was measured in this paper and they passed the check of thermodynamics. Then along with the binary and ternary VLE data, the least square method was used to solve vapour-liquid equilibrium model.

采用高温汽液平衡釜测定均三甲苯、邻甲乙苯及偏三甲苯的二元及三元气液平衡数据，并进行热力学一致性检验；采用最小二乘法并结合汽液平衡数据关联汽液平衡模型。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。