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磁铁矿负载蒙脱石（K）（纳米催化剂-Fe-Si-K）：用于多组分合成酰胺基烷基萘酚的高效绿色催化剂。

Magnetite-supported montmorillonite (K) (nanocat-Fe-Si-K): an efficient green catalyst for multicomponent synthesis of amidoalkyl naphthol.

作者信息

Patil Shripad M, Tandon Runjhun, Tandon Nitin, Singh Iqubal, Bedre Ashwini, Gade Vilas

机构信息

School of Chemical Engineering and Physical Science, Lovely Professional University Phagwara-144411 Punjab India

Savitribai Phule Pune University, Dada Patil Mahavidyalaya Karjat-414401 Maharashtra India.

出版信息

RSC Adv. 2023 Jun 6;13(25):17051-17061. doi: 10.1039/d3ra01522j. eCollection 2023 Jun 5.

DOI:10.1039/d3ra01522j
PMID:37288375
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10243519/
Abstract

Montmorillonite (K) loaded on magnetite silica-coated nanoparticles was made using simple co-precipitation methods. The prepared nanocat-Fe-Si-K was analyzed using some techniques including field emission-scanning electron microscopy (FE-SEM), inductive coupling plasma-optical emission spectroscopy (ICP-OES), X-ray diffraction (XRD), thermo-gravimetric analysis (TGA), Fourier transmission-infrared spectra (FT-IR), energy dispersive X-ray spectroscopy (EDS), and wavelength-dispersive spectroscopy (WDX). The catalytic activity of the synthesized nanocat-Fe-Si-K has been examined in one-pot multicomponent transformations for the synthesis of 1-amidoalkyl 2-naphthol derivatives under solvent-free conditions. Nanocat-Fe-Si-K was determined to be very active, having the ability to be reused 15 times without significant loss of catalytic activity. The suggested technique has several advantages, including excellent yield, minimum reaction time, a straightforward workup, and catalyst recycling, all of which are essential green synthetic aspects.

摘要

采用简单的共沉淀法制备了负载在磁性二氧化硅包覆纳米颗粒上的蒙脱土（K）。使用包括场发射扫描电子显微镜（FE-SEM）、电感耦合等离子体发射光谱法（ICP-OES）、X射线衍射（XRD）、热重分析（TGA）、傅里叶透射红外光谱（FT-IR）、能量色散X射线光谱（EDS）和波长色散光谱（WDX）等一些技术对制备的纳米催化剂Fe-Si-K进行了分析。在无溶剂条件下，研究了合成的纳米催化剂Fe-Si-K在一锅多组分转化反应中用于合成1-酰胺基烷基-2-萘酚衍生物的催化活性。结果表明，纳米催化剂Fe-Si-K具有很高的活性，能够重复使用15次而催化活性无明显损失。所建议的技术具有几个优点，包括产率高、反应时间短、后处理简单以及催化剂可循环使用，所有这些都是绿色合成的重要方面。

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