ethyl

And it is proved that the trifluoro ethyl methacrylate takes part in the copolymerization reaction.

讨论了氟单体用量对转化率的影响。

Tertiary amine, Chloroacetic acid and ethyl Chloroacetate could synergize MI and increase the ...

MI与给电性单体的组合效应不太明显。

Its catalytic performance in Heck reaction of iodobenzene with ethyl acrylate was studied.

研究了该催化剂对碘代苯与丙烯酸反应的催化性能及循环使用性能。

Nefedipine was synthesized with m-Nitrobenzaldehyde,ethyl acetoacetate,ammonium acetate.

以间硝基苯,酰酸,氨化试剂为原料。

The paper studied the preparation of bromine from basic Magnesium bromide in the production of maltol and ethyl maltol, the synthesis of bromethyl from bromine, sulfur and alcothol.

研究了以麦芽酚、基麦芽酚生产中的碱式溴化镁废渣为原料制取溴;以溴、硫和醇合成溴烷的方法。

The bitter melon saponin was extracted by transonogram-assisted using 70% ethyl alcohol, then was purified by macroporous resin, and the straight of bitter melon saponin was obtained.

建立了高效液相色谱法对苦瓜啤酒中功效成分——苦瓜皂苷检测的方法。

The two now isonicotnic acid hydrazone and N-oxide isonicotinic acid hydrazone of ethyl furoyl acetates were synthesised. The condensations were carried out in ethyl alochol medium.

合成了呋喃酰酸异烟酰腙和呋喃酰酸N-氧化异烟酰腙。缩合反应在醇中进行。

The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied.

以强酸性阳离子交换树脂为催化剂,十三碳二元酸与醇为原料合成十三碳二元酸二,考察了影响反应的因素。

Keto-enol tautomerizing of ethyl acetoacetate was studied by UV.It was conformed that the content of enol ethyl acetoacetate decreased with the increasing polarity of solvents.

本文以紫外光谱为手段研究酰酸的酮-烯醇式互变异构现象;所得结果证实其烯醇式含量随溶剂极性的增加而减少。

A synthetic method of benazolin ethyl was present with ochloroaniline, ammounium rhodanide, sulfuryl chloride, sodium nitrite and ethyl chloroacetate as the raw materials.

报道了以邻氯苯胺、硫氰酸铵、硫酰氯、亚硝酸钠和氯酸为主要原料合成草除灵的方法。

Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed.

莰烯在阳离子交换树脂固定床催化下与醇反应生成异菠基醚。

Ethyl phenylacrylate intermediate bringing a double bond was introduced first,which is subsequently transformed into triketone and then DCM was obtained with high purity.

采用具有烯烃骨架的β-苯基丙烯酸为中间体先引入双键,再经过三酮合环制备烯基吡喃。

OBJECTIVE: To study the effects of different dispersing media, such as atolin and ethyl benzoate, on sustained-release properties of chitosan microspheres.

观察液体石蜡和苯酸作为分散介质对壳聚糖载药微球缓释性能的影响。

Heptanone with purity being 98.5% was synthesized by ethyl acetoacetate.The yield is 58.9%,and its application in the related fields were discussed.

用酰酸法合成了2-庚酮,总得率为58.9%,纯度为98.5%.介绍了2-庚酮在相关领域中的应用.

Isobornyl ethyl ether was prepared by ethoxylation of camphene with absolute ethanol in the presence of DCP heat-resistant ion exchange resin.

工业莰烯在耐高温离子交换树脂DCP催化作用下与无水醇反应生成了异龙脑基醚。

A series of toxic products were produced after photocatalysis on ethanol, such as acetaldehyde, ethyl formate, ethyl acetate, diethoxymethane, 1,1-diethoxyethane.

如醇的反应产物包括，酸，酸，缩等一系列有害物质。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水醇、醚、丙酮及水作溶剂,对四川汉源花椒作了精油提取研究。

The synthesis of ethyl vanillin from urotropin is a major method with high yields,simple process, and available raw materials.

乌洛托品法是合成已基香兰素的一种重要方法，它操作简单，原料易得，产率较高。

The effect that isopropyl xanthogen ethyl formate is synthesized with isopropyl xanthate under differ condition has been studied.

考察了不同条件对异丙基黄药合成异丙基黄原酸酸的影响。

Because of all these disvantages acetylchloride is used to react with absolute ethyl alcohol and synthesize ethyl acetate.

鉴于传统方法存在以上缺点,采用酰氯代替酸作为原料,不使用任何催化剂,不加热,常温反应来合成酸。