查询词典 ethyl ester

Tebufenpyrad, a new high effective pyrazoleamide acaricide , was synthesized from 1-methyl-3-ethyl-4-chloro-5-pyrazolecarbon acid and 4-t-butylbenzylamine, the raw material are propionyl pyruvic ethyl ester and 4-t-butyl benzylchloride.

吡螨胺是一种新型、高效的吡唑酰胺类杀螨剂，本文以中间体1-甲基-3-乙基-4-氯-5-吡唑甲酸和4-叔丁基苄胺合成，起始原料丙酰丙酮酸乙酯和4-叔丁基苄氯，总收率为61.23%。

Orthogonal test was performed to examine the influences of reaction conditions on microwave-assisted synthesis of 2'-oxo-cyclopentanecarboxylic acid ethyl ester from diethyl adipate.

以己二酸二乙酯为原料，在微波辐射下经Dieckmann缩合反应合成2'-羰环戊基甲酸乙酯。

The components of higher relative content in wines were ethyl acetate, butanoic acid methylester, acetic acid isobutylester, butyric acid ethylester, isobutylalcohol, isopentylacohol acetate, isopentylalcohol, acetic acid hexylester, hexylalcohol, ethyl caprylate, decanoic acid ethylester, acetic acid phenethylester, lauric acid ethylester, benzeneethanol, octanoic acid,decanoic acid and hexanoic acid ethyl ester.

猕猴桃酒样中乙酸乙酯，丁酸甲酯，丁酸异丁酯，丁酸乙酯，异丁醇，乙酸异戊酯，异戊醇，乙酸己酯，己醇，辛酸乙酯，癸酸乙酯，乙酸苯乙酯，月桂酸乙酯，苯乙醇，辛酸，癸酸，己酸乙酯等相对含量较高。

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。

Phenetole ;α-oxo-p-ethoxyphenylacetic acid ethyl ester ; ethyl-2-（p-ethoxyphenyl） propenoate ; synthesis

苯乙醚；α-羰基-对乙氧基-苯乙酸乙酯； 2-对乙氧基苯基丙烯酸乙酯；合成

Results Eleven compounds were isolated and identified as:quercetin(1),kaempferol(2),quercitrin(3),protocatechuic acid(4),gallic acid(5),protocatechuic acid ethyl ester(6),ethyl gallate(7),vanillic acid(8),1,5,7-trihydroxyl-3methylan...

结果得到11个化合物，分别鉴定为：槲皮素(1)、山柰酚(2)、槲皮苷(3)、原儿茶酸(4)、没食子酸(5)、原儿茶酸乙酯(6)、没食子酸乙酯(7)、香草酸(8)、1，5，7-三羟基-3-甲基蒽醌(9)、琥珀酸(10)、5-羟甲基糠醛(11)。结论化合物6、7、9、11为首次从该属植物中分离得到。

Trans-3-phenylglycidate ethyl ester was prepared from benzaldehyde and ethyl chloroacetate through Darzens condensation reaction.

以苯甲醛和氯乙酸乙酯为原料，经Darzens 缩合反应合成了反式-3-苯基缩水甘油酸乙酯，然后在25℃以氨水开环得赤型-3-苯基异丝氨酰胺。

The experiment results indicate that the solvents (including n-hexane, ligarine, supercritical CO_2) and carriers all have great effects on the separation of ethyl linolenate from fatty acid ethyl ester mixture.

研究结果表明，超临界流体分离效果优于石油醚和正己烷等有机溶剂，氧化铝载体分离效果优于硅胶，超临界流体结合硝酸银吸附柱分离亚麻酸乙酯具有较好的效果，可得到纯度约95%的亚麻酸乙酯，其工业应用前景诱人。

At the same time, with reference to the conditions of synthesis of methyl ester of salicylic acid, we combined ethyl ester of salicylic acid, salicylic acid-n-butyl, isobutyl salicylate, amyl salicylate, isoamyl salicylate and salicylic acid benzyl ester,besides, experimented the possibility for series of ester synthesis catalyst with Sodium bisulfate as a catalyst .

同时参照水杨酸甲酯的合成条件合成了水杨酸乙酯、水杨酸丁酯、水杨酸异丁酯、水杨酸戊酯、水杨酸异戊酯和水杨酸苄酯，实验了以硫酸氢钠为催化剂合成系列酯的可能性。

Alcohols, ketones, esters, alcohols, ethers common media are methanol, ethanol, ethylene glycol, propanol, etc., ketones medium with acetone, methyl ethyl ketone, etc., there are a variety of methyl esters of medium, ethyl ester, ether medium with ether, ethyl ether, butyl ether, etc., they basically did not corrosive materials can be used for the specific use of the property should also be under the media and related requirements to make reasonable choices.

醇类、酮类、酯类、醚类常见的醇类介质有甲醇、乙醇、乙二醇、丙醇等，酮类介质有丙酮、丁酮等，酯类介质有各种甲酯、乙酯等，醚类介质有甲醚、乙醚、丁醚等，它们基本没有腐蚀性，常用材料均可适用，具体选用时还应根据介质的属性和相关要求做出合理选择。

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。