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- acetyl crotonaldehyde 乙酰巴豆醛
- To bring an acetyl group into(an organic molecule. 乙醯化使乙醯化,把一乙醯基带入(一有机分子)之中
- Who knows what effect acetyl salicylic acid has? 谁知道乙酰水杨酸有什么作用?
- To bring an acetyl group into(an organic molecule). 乙醯化使乙醯化,把一乙醯基带入(一有机分子)之中
- Acetyl choline can how is sexual urticaria treated? 乙酰胆碱能性荨麻疹怎么治疗?
- Then prepare the acetyl ferrocene. 反应制得夹心结构的二茂铁。
- An example of the acyl group is the acetyl group. 乙酰基是酰基的一个例子。
- This paper deals with the synthesis of acetyl spiramycin. 本文对乙酰螺旋霉素的合成工艺进行了系统研究。
- One, called TSA, inhibits the enzyme that removes acetyl groups. 一个是TSA,它可以抑制去除乙酰基的酶。
- In aerobic respiration it is decarboxylated to form acetyl CoA. 在需氧呼吸中,丙酮酸脱去羧基形成乙酰辅酶A。
- It is synthesized of ketene and crotonaldehyde method or 1,3- butadiene and acetic acid method. 山梨酸可用乙烯酮巴豆醛法、丁二烯乙酸法合成。
- The synthesis development of crotonic acid by oxidation of crotonaldehyde was reviewed. 综述了巴豆醛催化氧化合成巴豆酸的研究进展。
- Properties and synthetic route of crotonaldehyde are reviewed. Development and applications are described. 综合介绍丁烯醛的性质、工艺路线并对今后的研究课题和应用前景加以讨论和展望。
- The crotonaldehyde were extracted from the silica gel by ultrasonic treatment with DNPH solution. 硅胶管采样,2,4-二硝基苯肼(DNPH)溶液在超声中洗脱,高效液相色谱分离,二极管阵列检测器检测。
- A method for determining hydroxyl value of epoxy-containing polyester,namely acetyl chloride method is introduced. 介绍了一种含环氧基聚酯的羟值测定方法,即乙酰氯法。
- This article describes the application of a new desulfurizing catalyst G1 in Yangzi Acetyl Chemical Co Ltd. 文章介绍了新型脱硫催化剂G1在扬子乙酰公司的应用情况。
- Bromobutyraldehyde ethylene acetal was synthesized from crotonaldehyde by addition with hydrogen bromide and then acetalation with ethylene glycol with an overall yield of 80. 巴豆醛先与溴化氢加成;再与乙二醇缩醛化得到3-溴代丁醛缩乙二醇;收率80.;8%25。
- Finally, in 1853, a French 4)chemist called Charles Gerhardt 5)managed to produce acetyl salicylic acid, or aspirin. 最后在1853年,法国化学家查尔斯葛哈德终于制造出乙醯柳酸,即阿司匹林。
- Bromobutyraldehyde ethylene acetal was synthesized from crotonaldehyde by addition with hydrogen bromide and then acetalation with ethylene glycol with an overall yield of 80.8%. 巴豆醛先与溴化氢加成;再与乙二醇缩醛化得到3-溴代丁醛缩乙二醇;收率80.;8%25。
- Crotonic acid can be made by crotonaldehyde oxidized,and crotonaldehyde widly exists asthe accessory substance in the chemical enterprises that produce and use aldehyde. 丁烯酸可由丁烯醛氧化制得,而丁烯醛在生产和使用乙醛的化工企业作为副产物广泛存在,是一种需治理的废弃物,我国具有生产丁烯酸的原料条件。