乙酯

Ethyl 4-[(1-hydroxy-1-methyl)ethyl]-2-propyl-1H-imidazole-5-carboxylate,the key intermediate of Olmesartan ,was synthesized from butanoic acid and o-phenylenediamine via condensation under microwave-irradiation,oxidation,esterification and the Gringard reaction.

用正丁酸与邻苯二胺为原料，在微波照射下缩合成2-丙基苯并咪唑，再氧化开环制得2-丙基咪唑二羧酸，再经酯化、Gringard反应制得抗高血压药物奥美沙坦的关键中间体2-丙基-4-[(1-羟基-1-甲基)乙基]-1H-咪唑-5-羧酸乙酯，总收率32.2%。

Methods: Based on national standard, detected n-hexane, benzene, toluene, dimethylbenzene, ethyl acetate, butyl acetate and butanone in 450 factories.

根据中华人民共和国国家标准，对昆山市的450家接触正己烷、苯、甲苯、二甲苯、乙酸乙酯、乙酸丁酯、丁酮7种有机物的企业车间空气进行采样检测。

Besides, the main physiochemical indexes of new craft liquor including alcohol content, total acid, total ester, the content of ethyl caproate, solids, and other additives must meet the requirements of national standards.

生产的新工艺白酒的主要理化指标如酒精度、总酸、总酯、己酸乙酯含量、固形物及卫生指标和调加的其他添加剂必须符合国标要求。

Xifeng liquor is famous for it's shorter fermentation period in liquor－making field.But because of this typical craft,Xifeng liquor has lower content of total ester and total acid,which has disadvantage to aroma producing.Especially ,the amount of ethyl caproate is lower evidently than that of the main products in the market.

摘 要：西凤酒以发酵期短而在酿酒界闻名，西凤酒工艺的典型性决定了西凤酒总酯含量和总酸含量低，不利于多种呈香物质的放香，特别是己酸乙酯含量远低于目前市场上俏销的主流产品。

A mold strain producing ethyl caproate esterifying enzyme was isolated from Luzhou-flavor Daqu and it was identified as aspergillus flavus by Biolog microbes automated identification system.

从浓香型大曲中分离得到1株产己酸乙酯酯化酶霉菌，经Biolog微生物自动分析系统鉴定为黄曲霉。

The application of such esterifying monascus in liquor production could evidently increase total ester content and ethyl caproate content in product liquor and the product liquor had mellow and pure taste with enjoyable aftertaste.

将其应用于酿酒生产，能明显提高成品酒总酯及己酸乙酯含量，生产的成品酒窖香纯正浓郁，酒体醇厚爽净，回味悠长。

Methods: Sample preparation with acetic ether-QuEChERS, and then five kinds of pesticide residues in celery cabbage were determined by gas chromatography with electron detector.

采用乙酸乙酯－QuEChERS法进行样品前处理，结合气相色谱－电子捕获检测器对大白菜中5种常见拟除虫菊酯农药残留进行检测分析。

The graft copolymerization of butyl acrylateonto chloroprene rubber is carried out in methylbenzene-ethyl acetate solvent by using a new type of efficient initiator.

以一种新型的高效引发剂，在甲苯-乙酸乙酯混合溶剂中进行氯丁橡胶与丙烯酸丁酯的接枝共聚反应。

The main chemical components of Bulgaria are Citronellol、Trans-Geraniol、Nerol、Methyl eugenol、Linalool、β-Phenyl ethyl alcohol. The main chemical components of Xinjiang Province areβ-citronellol、trans-geraniol,β-phenyl ethyl alcoho, farnesol, geranellyl acetete, 7-octamoic acid ethyl ester.

保加利亚玫瑰油的主要成分为β-香茅醇、反式－香叶醇、橙花醇、芳樟醇、β-苯乙醇、甲基丁子香酚；新疆玫瑰油的主要成分为β-香茅醇、反式-香叶醇、β-苯乙醇、7-辛烯酸乙酯、乙酸香叶酯、金合欢醇。

Biodiesels were synthesized by the transesterification reaction of cottonseed oil and methyl alcohol and ethyl alcohol, respectively, in order to study the lubricating properties of biodiesel.

为研究生物柴油的润滑特性，该研究用棉籽油与甲醇和乙醇分别进行酯交换反应，制备出甲酯生物柴油和乙酯生物柴油。

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。