Copper nanoparticles grafted on carbon microspheres as novel heterogeneous catalysts and their application for the reduction of nitrophenol and one-pot multicomponent synthesis of hexahydroquinolines. (18th December 2017)

• Record Type: Journal Article
• Authors: Pasinszki, Tibor; Krebsz, Melinda; Lajgut, Győző György; Kocsis, Tünde; Kótai, László; Kauthale, Sushama; Tekale, Sunil; Pawar, Rajendra
• Is Part Of: New journal of chemistry. Volume 42:Number 2(2018)
• Page Start: 1092
• Page End: 1098
• Publication Date: 2017-12-18
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c7nj03562d
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Carbon microsphere-supported Cu nanoparticles were fabricated, characterized, and applied for synthesis. Abstract : Novel carbon microsphere-supported metallic copper nanoparticles (Cu-NP/C) were synthesized using a low-cost and facile method based on carbonising a styrene-based, chelate-forming cation exchange resin loaded with Cu 2+ ions. The metal–organic framework served as both copper and carbon source. Cu-NP/C microspheres were characterized by XRD, Raman, SEM, TGA, EDAX, and BET surface area analyser and were employed as heterogeneous catalysts for the reduction of 4-nitrophenol to 4-aminophenol by NaBH4 and for the synthesis of medicinally significant hexahydroquinoline derivatives based on the one-pot, multi-component reaction of aldehydes, dimedone, ethyl acetoacetate, and ammonium acetate. The sustainable and cheap starting material, the relatively easy synthetic procedure, the catalytic efficiency, and the easy separation and reusability of Cu-NP/C microspheres open the door for their wide-scale application.