离子液体
石墨烯
催化作用
傅里叶变换红外光谱
材料科学
氧化物
扫描电子显微镜
胺气处理
透射电子显微镜
化学工程
共价键
磁性纳米粒子
红外光谱学
烷基化
化学
有机化学
纳米技术
纳米颗粒
复合材料
工程类
冶金
作者
Charu Garkoti,Javaid Shabir,Subho Mozumdar
标识
DOI:10.1002/slct.202000336
摘要
Abstract Amine‐terminated ionic liquid has been covalently fabricated over the surface of Magnetic graphene oxide nanosheets. The structure of prepared material has been confirmed by various characterization techniques such as Fourier Transform Infrared Spectroscopy (FT‐IR), Powder XRD, Vibrating Sample Magnetometer (VSM), Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM), Energy Dispersive X‐ray spectroscopy (EDX). The prepared material demonstrates its supremacy as an efficient, recyclable and cost‐effective heterogeneous catalyst in the synthesis of 3‐amino alkylated indoles via Mannich reaction. The presence of both the hydrogen‐bond donors and acceptors assemblies helps to activate the substrate molecule, thereby increases the rate of reaction and excellent product yields have been obtained. Moreover, the catalyst could be magnetically recovered and recyclable up to seven consecutive cycles thereby make the protocol efficient for large‐scale production of pharmaceutically important compounds.
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