Nano Copper(0)-Stabilized on Alumina: Efficient and Recyclable Heterogeneous Catalyst for Chemoselective Synthesis of 1,2-Disubstituted Benzimidazoles and Quinoxalines in Aqueous Medium
作者:Jaya Pogula、Soumi Laha、Pravin R. Likhar
DOI:10.1007/s10562-017-2166-6
日期:2017.11
communication elicits the use of copper nanoparticles on aluminium oxide derived from Cu–Al hydrotalcite as a heterogeneouscatalyst in the green and operationally simple approach for the synthesis of selective 1,2-disubstituted benzimidazoles and quinoxaline. Wide ranges of substituted o-phenylenediamines and aldehydes or α-bromo ketones were used to achieve the desired products using water as the reaction
本通讯引出在源自 Cu-Al 水滑石的氧化铝上使用铜纳米颗粒作为非均相催化剂,以绿色且操作简单的方法合成选择性 1,2-二取代苯并咪唑和喹喔啉。使用范围广泛的取代邻苯二胺和醛或 α-溴酮,以水作为反应介质来获得所需的产物。催化剂的可回收性和可重复使用性是这种环保绿色协议的显着特征。图文摘要描述了一种在室温下在 Cu (0) / Al2O3 催化剂存在下合成苯并咪唑和喹喔啉的简单有效方法。