A Simple Preparation of Amides from Acids and Amines by Heating of Their Mixture
作者:Branko S. Jursic、Zoran Zdravkovski
DOI:10.1080/00397919308013807
日期:1993.11
Abstract Heating a mixture of an amine and an acid is demonstrated as the method of choice for the preparation of many amides. The yields depend on the physical properties and thermal stability of the reactants and range from good to excellent. The ideal reactants should have melting points below 200 °C, should not be highly volatile and should be thermally stable at that temperature for 30 minutes
摘要 加热胺和酸的混合物被证明是制备许多酰胺的首选方法。产率取决于反应物的物理性质和热稳定性,范围从良好到极好。理想的反应物应具有低于 200 °C 的熔点,不应具有高度挥发性,并且应在该温度下热稳定 30 分钟。通过在反应中使用酸酯代替酸可以克服这些缺点中的一些。该方法以其简单、低成本和反应时间短而脱颖而出。它也可以非常大规模地进行,不需要溶剂和反应物的特殊纯化。
Reaction of Amphipathic-Type Thioester and Amine with Hydrophobic Effect in Water
作者:Chiaki Kuroda、Atsushi Torihata
DOI:10.1055/s-0030-1261165
日期:2011.9
The title reaction was studied using sodium 3-(1-oxododec-1-yl)thio- and 3-(1-oxohept-1-yl)thiopropanoate with various chain lengths of amines. The yields of the amides were found to depend on both the chain length of the thioester and that of amine, suggesting the presence of hydrophobic interaction. The amides were obtained in better yields after addition of sodium fluoride. Acylation (dodecanoylation) of some hydrophobic amino acids was also studied to obtain the corresponding amides.
Hydrophobic Effect and Substrate Specificity in Reaction of Thioester and Amine in Water
作者:Atsushi Torihata、Chiaki Kuroda
DOI:10.1246/bcsj.20100143
日期:2010.12.15
extent of hydrophobic effect in amidation reaction of alkyl thioester with alkylamine in water was studied. The yield of the products was primarily dependent on the alkyl group of amine. For example, the reaction of S-dodecyl dodecanethioate with dodecylamine proceeded in good yield, while the reaction did not occur with cyclohexylamine, piperidine, and dipropylamine. The effect of chain length of n-alkylamine