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Freeze-dephlegmation: Application to Bromamine Acid Aqueous Solution Purification and the Practical Wastewater Discharged for Ullmann Condensation Reaction; 利用冷冻分凝原理处理废水,是一项开发自然能源、消除环境污染的有益工作。
Ullmann condensation reaction 鸟尔曼缩合反应
Most condensation reactions are equilibria. 大多数的缩合反应是平衡反应。
The combined addition-elimination sequence is referred to as a condensation reaction. 将联合加成-消除反应的结果称为缩合反应。
Kinetic behavior of condensation reaction of acetone and glycerol was experimentally studied. 本文研究了甘油丙酮缩合反应过程的动力学性质。
Condensation reaction of piperazine is a very important step in the process of synthesis of ciprofloxacin. 摘要呱嗪缩合反应是环丙沙星生产工艺中的关键步骤。
Methods: Five Schiff bases were prepared from piperonal and diamines by condensation reaction. 目的:合成新的双-胡椒醛缩二胺类席夫碱化合物。
Below are the main works: 1.Take Friedlander condensation reaction to synthesize the 5,6,7,8-tetrahydroquinoline. 本文主要工作如下： 1、采用Friedlander缩合反应对5,6,7,8-四氢喹啉进行了合成。
Objective To improve Piperazine condensation reaction in the preparation of Ciprofloxacin hydrochloride. 目的改进盐酸环丙沙星制备中的哌嗪缩合反应。
Methods:Four Schiff bases were prepared from p-dimethy laminobenzaldehyde and diamines by condensation reaction. 方法:以对二甲氨基苯甲醛和二胺类为原料,经缩合反应,制得4种相应希夫碱。
The conventional method was by the condensation reaction of formaldehyde and polyvinyl alcohol. 常规的制备方法是通过甲醛和聚乙烯醇的缩合反应来实现的。
The DSC thermograms with exothermicity of the condensation reaction and endothermicity of small molecules evaporation show wide and smooth peaks. 结果表明,羟甲基参与固化反应,生成亚甲基或醚键。
A new type of apple ester-B is synthesized by condensation reaction of ethyl acetoacetate and 1,2- propanediol,Using Fe 3+ -UR as catatlyst. 以Fe3 ＋－ UR 为催化剂，催化乙酰乙酸乙酯和1 ，2 －丙二醇缩合反应合成了新型香料苹果酯－ B。
Methods: Starting from diethanolamine, BP897 was prepared via chlorination, cyclization, substitution, aminolysis and condensation reaction. 方法:以二羟乙基胺为起始原料,经过氯化、环合、取代、肼解、缩合等反应合成BP897。
Discussions were made on optimal conditions for condensation reaction between dialdehyde starch(DAS) and PVA to form DAS-PVA glue. 将双醛淀粉(DAS)与聚乙烯醇(PVA)进行缩合反应,探讨了DAS-PVA胶粘剂合成的最佳条件。
Acrylpimaric acid polyester polyols were synthesized through condensation reaction between acrylpimaric acid and different diols. 以丙烯海松酸为二元酸，与不同的二元醇进行缩聚反应制备丙烯海松酸聚酯多元醇。
Diacetone alcohol (DA) was synthesized by means of alcohol condensation reaction in a continuous fixed bed reaction vessel designed by authors. 利用自行设计的连续固定床反应器,将丙酮进行羟醛缩合反应,合成了二丙酮醇,对合成产物进行了折光率及IR测试表征;
In this paper,the progress on diphenolic acid preparation by condensation reaction of levulinic acid and phenol is introduced. 利用乙酰丙酸和苯酚缩合反应制取双酚酸。
The temperature and time of reaction,solvent and the constitution of aldehydes have remarkable influences on condensation reaction. 并讨论了反应温度、反应时间、溶剂以及醛的结构对反应产率的影响。
On heating, condensation reaction of the hydroxymethyl groups in the complexes takes place and forms methylenes or carbonyl groups. 固化过程中有小分子放出使配合物快速失重;