Synthesis, Characterization, and Application of Silica-Supported Copper-Doped Phosphotungstic Acid in Claisen-Schmidt Condensation

Siddiqui, S. and Khan, M.U. and Siddiqui, Z.N. (2017) Synthesis, Characterization, and Application of Silica-Supported Copper-Doped Phosphotungstic Acid in Claisen-Schmidt Condensation. ACS Sustainable Chemistry and Engineering, 5 (9). 7932q-7941. ISSN 21680485

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Official URL: http://pubs.acs.org/doi/10.1021/acssuschemeng.7b01...

Abstract

An efficient, novel, and recyclable silica-supported copper-doped phosphotungstic acid (CuPTA/SiO2) has been synthesized by an impregnation method. The catalyst has been characterized by FTIR, XRD, SEM/EDX, ICP-AES, EPR, XPS, and NH3-TPD analyses. The catalytic application of the catalyst has been explored for Claisen-Schmidt condensation. The catalyst could be recycled for six runs without any appreciable loss in catalytic activity. The catalytic activity of the recovered catalyst after six runs was confirmed by FTIR, XRD, SEM/EDX, ICP-AES, and EPR analyses. The Claisen-Schmidt products were obtained in excellent yield in a shorter time period.

Item Type: Article
Uncontrolled Keywords: Claisen-Schmidt condensation; CuPTA/SiO2; Heteropoly acid; Phenoxy pyrazolyl chalcones; Solvent-free reaction
Subjects: Q Science > QD Chemistry
Divisions: Faculties > Faculty of Science > Department of Chemistry
Depositing User: AMU Library
Date Deposited: 06 Feb 2018 05:24
Last Modified: 06 Feb 2018 05:35
URI: http://ir.amu.ac.in/id/eprint/11135

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