A highly efficient three-component coupling of aldehyde, terminal alkyne, and amine via C–H activation catalyzed by reusable immobilized copper in organic–inorganic hybrid materials under solvent-free reaction conditions
作者:Pinhua Li、Lei Wang
DOI:10.1016/j.tet.2007.04.032
日期:2007.6
Recycling copper(I) immobilized on organic–inorganic hybrid material behaves as a very efficient heterogeneous catalyst in the three-component Mannich coupling reaction of aldehydes, terminalalkynes, and amines via C–H activation to afford the corresponding products in good to excellent yields under solvent-free reaction conditions.
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