Synthesis of Functional Acetylene Derivatives from Calcium Carbide
作者:Zhewang Lin、Dingyi Yu、Yin Ngai Sum、Yugen Zhang
DOI:10.1002/cssc.201100649
日期:2012.4
AHA Erlebnis: CaC2, used to produce acetylene until several decades ago, is re‐emerging as a cheap, sustainable resource synthesized from coal and lignocellulosic biomass. We report efficient catalytic protocols for the synthesis of functional acetylene derivativesfrom CaC2 through aldehyde, alkyne, and amine (AAA) as well as alkyne, haloalkane, and amine (AHA) couplings, and in addition demonstrate
AHA Erlebnis: CaC 2一直用于生产乙炔,直到几十年前,它已经重新崛起为一种由煤炭和木质纤维素生物质合成的廉价,可持续的资源。我们报告了通过醛,炔烃和胺(AAA)以及炔烃,卤代烷烃和胺(AHA)偶联剂从CaC 2合成功能性乙炔衍生物的有效催化方案,此外还证明了其在点击和Sonogashira化学中的用途,表明电石是一种可持续且具有成本效益的碳源。
Ag2CO3-catalyzed efficient synthesis of internal or terminal propargylicamines and chalcones via A3-coupling under solvent-free condition
or terminal propargylamines and chalcones via A3-coupling reaction of aldehydes, amines, and alkynes catalyzed by an easily available catalyst Ag2CO3 under solvent-free condition. The reaction proceeded smoothly to deliver various products in good-to-excellent yields with good functional group tolerance. Gram-scale preparation, bioactive molecule synthesis and asymmetric substrates have been demonstrated
几个简单,快速和实用的协议已被开发来合成内部或末端炔丙胺和查耳酮通过甲3 -耦合醛,胺的反应,和炔由容易获得的催化剂催化的Ag 2 CO 3无溶剂条件下进行。反应进行得很顺利,以良好的收率和良好的官能团耐受性提供了各种产品。已经证明了克级制备,生物活性分子合成和不对称底物。此外,已经提出了合成不同产物的合理机制。
PROCESS FOR PRODUCING AN AMINOPROPYNE OR ENAMINONE
申请人:Zhang Yugen
公开号:US20140142304A1
公开(公告)日:2014-05-22
There is provided a process for producing an aminopropyne or an enaminone comprising the step of reacting a metal acetylide, an amine and a carbonyl-containing compound in the presence of a transition metal catalyst. There is also provided a process for producing an aminopropyne comprising the step of reacting a metal acetylide, an amine and a halide-containing compound in the presence of a transition metal catalyst at a reaction temperature of 50° C. to 150° C. There are also provided processes to further synthesize the aminopropyne produced to obtain a butyneamine, another aminopropyne or a triazol.