Single and double A3-coupling (aldehyde-amine-alkyne) reaction catalyzed by an air stable copper(I)-phosphole complex
作者:José Ricardo Cammarata、Rocío Rivera、Franmerly Fuentes、Yomaira Otero、Edgar Ocando-Mavárez、Alejandro Arce、Juan M. Garcia
DOI:10.1016/j.tetlet.2017.09.031
日期:2017.10
An air stable copper(I)-phosphole complex, [CuCl2,5-bis(2-thienyl)-1-phenylphosphole}2] (1), was utilized as a catalyst in single and double A3-coupling reactions for preparing mono- and bi-propargylamines. A variety of aldehydes, amines and terminalalkynes were tested. Most of these reactions led to formation of the expected propargylamines in good yields using low amounts catalyst and obviating
Copper–birhodanine complex immobilized on Fe
<sub>3</sub>
O
<sub>4</sub>
nanoparticles: DFT studies and heterogeneous catalytic applications in the synthesis of propargylamines in aqueous medium
作者:Manuchehr Rezaei、Khaled Azizi、Kamal Amani
DOI:10.1002/aoc.4120
日期:2018.3
Heterogeneous magnetic nanocatalyst, Fe3O4@SiO2–Ligand–Cu (II) MNPs, reveals high catalytic performance within the synthesis of propargylamines using the multicomponent coupling reaction of aldehydes, phenylacetylene and secondary amines in water as a solvent. The substantial feature of this organic–inorganic hybridmagnetic nanocatalyst is the capability of straightforward separation of the reaction
非均相磁性纳米催化剂Fe 3 O 4 @SiO 2-配体-铜(II)MNPs在醛基,苯乙炔和仲胺在水中作为溶剂的多组分偶联反应中,在炔丙基胺的合成中显示出较高的催化性能。这种有机-无机杂化磁性纳米催化剂的主要特征是能够通过外部磁体直接分离反应混合物,该磁体被回收十次而不会显着降低催化活性。这种方法还具有其他优势,例如服从于绿色化学原理,并且避免使用昂贵且有害的有机溶剂。为了研究Birhodanine衍生物-铜(II)配合物的稳定性和实际结构,还进行了DFT计算。
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
Manganese(<scp>ii</scp>) chloride catalyzed highly efficient one-pot synthesis of propargylamines and fused triazoles via three-component coupling reaction under solvent-free condition
作者:Shakil N. Afraj、Chinpiao Chen、Gene-Hsian Lee
DOI:10.1039/c4ra03232b
日期:——
A one-pot green and highly efficient method for the synthesis of propargylamines and diastereoselective synthesis of fused triazoles via three-component coupling in the presence of manganese(II) chloride as a catalyst and a catalyst-free 1,3-dipolar cycloaddition reaction, respectively, without using a co-catalyst or activator is reported. This methodology is efficient, eco-friendly, operationally
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。