Synthesis of pentaerythritol diacetals from aldehydes and ketones under microwave irradiation 催化下微波促进芳香醛与环酮的缩合反应
The calculation of the quantum chemistry shows the reaction mechanism of the condensation reaction 利?量子化学计算方法讨论了该缩合反应的机理。
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?工艺中的关键步骤。
Condensation reaction a chemical reaction in which two molecules are joined together with the elimination of a simpler molecule or group 缩合反应：两个分子通过释出一些简单的分子或基团而连结起来的化学反应。
Many condensation reactions involve the elimination of water , e . g . the formation of peptide bonds between amino acids in the formation of peptides 许多缩合反应都能释出水，例如在氨基酸之间形成肽链时形成的肽键。
In this paper , 1 , 1 - diacetate was synthesized from furfural and acetic anhydride by acidic bentonite friendly to environment as catalyst with excellent yield ( 87 . 6 % ) 摘要利用对环境友好的酸性皂土做催化剂，糠醛与乙酸酐发生缩合反应合成了1 , 1 -二乙酸酯，产率高达86 . 6 % 。
The pentaerythritol diacetals were effectively synthesized through condensation reaction of pentaerythritol with aldehydes and ketones promoted by zirconium sulfate - silica gel under microwave irradiation 摘要微波辐射硫酸锆矽胶催化季戊四醇与醛、酮缩合反应，高收率制得了双缩醛和双缩酮化合物。
Jintan star chemical co . , ltd . is a professional fine chemical production enterprise which has rich experience in diazo reaction , friedel - crafts and reducing reaction 我公司是一家专业化、科研型化工生产企业，在重氮化反应、傅克反应、还原反应、缩合反应、霍夫曼反应等方面有丰富的经验。热忱欢迎您的光临指导！
Lorazepam was synthesized by the following seven steps : condensation reaction ( 1 ) , condensation reaction ( 2 ) , cyclic reaction , ring expanding reaction , acylate reaction , hydrolysis reaction and refining 摘要详细设计了劳拉西泮的合成路线，主要过程有缩合反应（一） 、缩合反应（二） 、环合反应、扩环反应、酰化重排反应和水解反应。
The definition , classification , mechanism and application of electrochemical polymerization are introduced in this paper . the essential difference between electrochemical condensation polymerization and electrochemical addition polymerization has been elucidated especially . in addition , a new concept of electrochemical cyano addition polymerization has been put forward 介绍了电化学聚合反应的定义、分类、机理和应用，阐述了电化学缩合反应和电化学加成聚合反应这两大类电化学聚合反应的本质差别，另外还提出了电化学氰基加成聚合反应的概念。
