Environmentally benign copper nanoparticles supported on walnut shell as a highly durable nanocatalyst for the synthesis of propargylamines

Fariba Saadati, Vahid Leghaei, Asghar Zamani


This study was an attempt to prepare copper nanoparticles and to determine their catalytic activity employing walnut shell (WS) residue as a green support and a reusable material. The nanocatalyst was characterized though inductively coupled plasma optical emission spectrometry (ICP-OES), N2-sorp­tion analysis, X-ray powder diffraction (XRD), energy-dispersive X-ray spec­troscopy (EDS), and transmission electron microscopy (TEM). The catalytic performance of CuNPs@WS was then studied in the preparation of propargyl­amines via a three-component reaction. The catalyst could be recovered and reused without a significant decrease in its activity over eight reaction cycles. The simple methodology described herein is an economic, ecofriendly and practical method accompanied by higher yields.


walnut shell; nanoparticles; reused material; copper; propargylamine


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DOI: https://doi.org/10.2298/JSC161221081S

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