Issue 70, 2015

Lanthanum loaded CuO nanoparticles: synthesis and characterization of a recyclable catalyst for the synthesis of 1,4-disubstituted 1,2,3-triazoles and propargylamines

Abstract

Lanthanum loaded CuO (LCO) nanoparticles (NPs) were successfully synthesized by a precipitation–thermal decomposition method and characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy dispersive spectra (EDS), diffuse reflectance spectra (DRS), photoluminescence (PL), X-ray photoelectron spectroscopy (XPS) and BET surface area measurements. The synthesized LCO NPs were used as a nanocatalyst for the synthesis of 1,4-disubstituted 1,2,3-triazoles by a click reaction of substituted benzyl azides and alkynes and the synthesis of propargylamines via three-component coupling reactions of aldehydes, alkynes and amines under ultrasonication. The one-pot operation, atom-economical nature, regioselectivity and good yields are the noteworthy features of this protocol. The reusability of the prepared nanocatalyst was successfully examined six times without any appreciable loss in catalytic activity.

Graphical abstract: Lanthanum loaded CuO nanoparticles: synthesis and characterization of a recyclable catalyst for the synthesis of 1,4-disubstituted 1,2,3-triazoles and propargylamines

Supplementary files

Article information

Article type
Paper
Submitted
27 mrt 2015
Accepted
09 jun 2015
First published
09 jun 2015

RSC Adv., 2015,5, 56507-56517

Lanthanum loaded CuO nanoparticles: synthesis and characterization of a recyclable catalyst for the synthesis of 1,4-disubstituted 1,2,3-triazoles and propargylamines

R. Sasikala, S. K. Rani, D. Easwaramoorthy and K. Karthikeyan, RSC Adv., 2015, 5, 56507 DOI: 10.1039/C5RA05468K

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