Copper-Catalyzed Three-Component Coupling of Terminal Alkyne, Dihalomethane and Amine to Propargylic Amines
作者:Dingyi Yu、Yugen Zhang
DOI:10.1002/adsc.201000691
日期:2011.1.10
The directCH and Chalogen activation for CCbond formation is one of the most interesting reactions in organic chemistry. CCbond formation using alkynes as a carbon nucleophilic source is a very useful method in synthesis. Herein, a copper(I) chloride catalyzed three‐component coupling reaction of alkynes, dihalomethanes and amines through CH and Chalogen activation to form propargylic amines
直接Ç H和13 C 卤素活化对于C C键的形成是在有机化学的最有趣的反应之一。Ç 使用炔烃作为碳亲核源C键的形成是在合成一个非常有用的方法。这里,铜(I)氯化物催化炔,dihalomethanes和胺三组分偶合反应至C H和13 C 已经建立了在温和条件下卤素活化形成炔丙基胺的方法。该反应可以在水中,在纯净的或在普通的有机溶剂中进行,并且适用于具有良好官能团耐受性的芳族和脂族炔烃。它代表了多组分反应(MCR)的一个极好的例子,为合成炔丙基胺提供了一种绝妙的方法,炔丙基胺是常见的骨架组分,是制备许多含氮生物活性化合物的合成通用关键中间体。从视机制来看,这种化学不仅提供一种新的方法与新的C炔胺 C和C N键形成至C H和13 C 卤素活化,但也为新型多组分反应提供了有价值的机理见解。
[EN] PROPARGYLAMINE SYNTHESIS USING A COPPER (I) CATALYSED THREE COMPONENT COUPLING REACTION<br/>[FR] SYNTHÈSE DE PROPARGYLAMINE UTILISANT UNE RÉACTION DE COUPLAGE À TROIS COMPOSANTS CATALYSÉE PAR DU CUIVRE (I)
申请人:AGENCY SCIENCE TECH & RES
公开号:WO2012005692A1
公开(公告)日:2012-01-12
The present invention relates to a three component coupling reaction. In this reaction a terminal alkyne or a salt thereof, a geminal dihalide and a primary or secondary amine are reacted in the presence of a copper (I) catalyst to produce a propargylamine.
Mild and efficient synthesis of propargylamines by copper-catalyzed Mannich reaction
作者:Lothar W. Bieber、Margarete F. da Silva
DOI:10.1016/j.tetlet.2004.09.079
日期:2004.11
Terminal alkynes undergo mild and efficient aminomethylation with aqueous formaldehyde and secondary amines under CuI catalysis. In most cases high to nearly quantitative yields of tertiary propargylamines are obtained in DMSO solution at room temperature. Aromatic, aliphatic and silylated acetylenes as well as alkynols can be used. Primary amines are less reactive and satisfactory yields of secondary propargylamines
Silver Nanoparticles Supported by Novel Nickel Metal-Organic Frameworks: An Efficient Heterogeneous Catalyst for an A³ Coupling Reaction
作者:Lexin Song、Zhiyong Wang、Sujing Wang、Xiaoxiao He
DOI:10.1055/s-0028-1087540
日期:2009.2
A novel heterogeneous catalyst of silver nanoparticles was prepared by using a nickel metal-organic framework (Ni-MOF) as a template. The catalyst has a very high catalytic activity and a strict structural selectivity towards linear aliphatic aldehydes in an A³ coupling reaction. The catalyst could be recovered by simple phase separation and reused for many times without obvious loss of activity.