Propylene glycol monoether acetate was synthesized using heteropoly acid as catalyst for the firsttime.
首次以杂多
为催化剂采用
化法
成丙


醚

。
Propylene glycol monoether acetate was synthesized using heteropoly acid as catalyst for the firsttime.
首次以杂多
为催化剂采用
化法
成丙


醚

。
Nefedipine was synthesized with m-Nitrobenzaldehyde,ethyl acetoacetate,ammonium acetate.
以间硝基苯甲醛,
酰


,氨化试剂为原料。
The reactor has some zymogen and acetogen, but no methanogen bacteria.
反应器中有一定量的发酵菌和产
菌,但无产甲烷菌。
Water (Aqua), Glycerin, Propylene Glycol, Hydroxyethylcellulose, Tetrasodium EDTA, Citric Acid, Sodium Benzoate.
水(水) ,甘油,丙
,羟
基纤维素, Tetrasodium
胺四
,柠檬
,苯甲
钠。
Thioglycolic acid(TGA) was synthesized from thioglycolic acid and sodium hydrosulfide under common pressure.
研究了以硫氢化钠和氯
钠为原料常压
成巯基
。
In addition to re-forming oxaloacetate, the cycle produces carbon dioxide and the energy-rich compound ATP.
除了再生成的草醯
,生成
氧化碳和富有能量的混
三磷
腺(ATP)。
The preparation of anisaldehyde by ozonolysis reaction from anethole was studied.
以茴香脑为原料,
和环己烷的混
物做溶剂,臭氧化法制备茴香醛。
According t the customer`s qlycocyamine functioned with betain can be useas food addition to cure myasthenia.
根据客户信息,胍基
配
甜菜碱使用,用于食品添加剂治疗肌无力。
The synthetic method of trichloromethyl-benzyl-alcohol and trichlorometyl-benzyl-alcohol-acetate were reviewed, and the application of rosone were introduced.
讨论了三氯甲基苄
和三氯甲基苄


的
成方法,介绍了结晶玫瑰的应用。
Most other processes use chemical solvents, like Methylene Chloride or Ethyl Acetate to decaffeinate coffee beans.
而通常这个过程,有些工艺会使用
氯甲烷(用作萃取剂)或


(用作溶剂)等。
Composition of 1,8 - cineole (80%), camphene, phellandrene, Terpineol acetate, geraniol, isoamyl aldehyde, citronellal, and pepper ketones.
组成1,8-桉叶素(80%以上)、莰烯、水芹烯、萜品
、
香叶
、异戊醛、香茅醛和胡椒酮等。
The isopropyl chloracetate was synthesized by esterification of chloracetic acid with isopropyl alcohol using aluminium phosphotungstate as catalyst.
以氯
和异丙
为原料,磷钨
铝作催化剂进行
化反应,
成氯
异丙
。
The phenylacetyl ethanolamine,a low toxic precurson of benzylpenicillin,was synthesized by using ethyl phenylacetate and colamine as raw materials.
以苯


和
胺为原料
成了苄青霉素低毒前体苯
酰基
胺。
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
作为原料,不使用任何催化剂,不加热,常温反应来
成


。
The results can be used to guide the engineering development for the synthesis of pseudoionone by this method.
该结果对
酰

法
成假性紫罗兰酮的工业开发具有实用价值。
The hexadecanol bischloroacetate was synthesized fastly with the technique of microwave irradiation with the anhydrous cupric sulfate as catalyst.
研究了在无水硫
铜的催化下,利用微波辐射技术快速
成氯
十六
的方法及影响反应收率的因素。
This paper analyzes the purifying and processing method of superabundance mother liquid in the production process of chloroactic acid.
对氯
生产过程中得到母液的提纯及提纯后残液加工处理方法进行了较详细的分析介绍。
The stability,decomposition and generation of the acetic acid halid and other organic halide in the treated water is briefly discussed.
简述了生成的卤化
和其它有机卤化物的稳定性及分解、生成等问题.
The synthesis of epalrestat,an aldose reductase inhibitor, was improved. The yield of its intermediate 3-carboxymethyl rhodanine was raised to 76.4%.
对醛搪还原酶抑制剂依帕司他的
成工艺作了改进,使中间体绕丹宁
的收率提高到76.4%。
An efficient palladium-cocatalyst system for vinylation of unsaturated carboxylic acid has been exploited,among which aliphatic amines(ALA)are firstly used as cocatalysts.
以醋
钯/邻菲洛林/脂肪胺为催化体系,丙烯
和

烯
为原料,通过
烯基交换反应制备丙烯
烯
。
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