Metal- and catalyst-free, one-pot, three-component synthesis of propargylamines in magnetized water: experimental aspects and molecular dynamics simulation
Magnetized water (MW), as a green-promoting medium, is applied for the one-pot, metal- and catalyst-free, practical, efficient, and environmentally benign three-component reactions of aldehydes, amines, and alkynes. The salient features of this novel methodology are its simplicity, low cost, short reaction time, high reaction yield, easy work-up, and absence of hazardous organic solvents. Moreover
A practical and efficient method was developed for the synthesis of propargylamines in a one-pot procedure from aldehydes, amines, and alkynes by using CuI as catalyst and succinic acid as additive. By using this protocol, a wide range of propargylamines was obtained in high yields.
An efficient and facile one-pot synthesis of propargylamines by three-component coupling of aldehydes, amines, and alkynes via C–H activation catalyzed by NiCl2
作者:Subhasis Samai、Ganesh Chandra Nandi、M.S. Singh
DOI:10.1016/j.tetlet.2010.08.043
日期:2010.10
NiCl2 was found to be a highly efficient and effective catalyst for the one-pot three-component (A3) coupling of aldehydes, amines, and alkynes to produce propargylamines in nearly quantitative yields. Structurally divergent aldehydes, amines, and alkynes were converted into the corresponding propargylamines. No co-catalyst or activator is needed and water is the only byproduct of this novel protocol.
Copper(<scp>ii</scp>) carboxymethylcellulose (CMC-Cu<sup>II</sup>) as an efficient catalyst for aldehyde–alkyne–amine coupling under solvent-free conditions
作者:Xiaoping Liu、Bijin Lin、Zhuan Zhang、Hao Lei、Yiqun Li
DOI:10.1039/c6ra18742k
日期:——
three-component reaction of aldehydes, amines, and alkynes (A3 coupling) catalyzed by a recoverable copper(II) carboxymethylcellulose (CMC-CuII) catalyst has been developed, producing a diverse range of propargylamines under solvent-free conditions in good yields. The CMC-CuII catalyzed reaction is especially effective for reactions involving aromatic and aliphatic aldehydes. Highcatalyticactivity was obtained
The multicomponentreaction (MCR) strategy for the construction of important molecular scaffolds is in trending nowadays and among them, A3-coupling stands in a significant position. Aldehyde, amine and alkynes are coupled in this particular reaction via C-H activation process. Herein, we have reported zinc ferrite nanoparticles as magnetically separable heterogeneous catalyst for A3-coupling reaction
构建重要分子支架的多组分反应(MCR)策略是当今的趋势,其中A 3 -偶联处于重要地位。醛、胺和炔烃通过 CH 活化过程在该特定反应中偶联。在此,我们报道了铁酸锌纳米颗粒作为 A 3偶联反应的可磁分离多相催化剂,具有出色的生产率、选择性和更好的可重复使用性等吸引人的属性。此外,该催化剂还可以有效地应用于各种NH-三唑类化合物的合成,产品的收率很高。已经提出了合成 NH-三唑的合理机制,然后通过计算研究进行验证。