Journal
APPLIED CATALYSIS A-GENERAL
Volume 503, Issue -, Pages 186-195Publisher
ELSEVIER
DOI: 10.1016/j.apcata.2015.07.015
Keywords
Copper complex; Click reaction; Polystyrene; Triazole; Ionic liquid
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Funding
- Research Council of the University of Isfahan
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Copper(II) complex of 1,2-bis(4-pyridylthio)ethane immobilized on polystyrene was a used as a highly stable, active, reusable and green catalyst for click synthesis of 1,2,3-triazoles via one-pot threecomponent reaction of organic halides, sodium azide and alkynes. The catalyst was characterized by FT-IR spectroscopy, thermogravimetric analysis, elemental analysis, field emission scanning electron microscopy, energy dispersive X-ray, transmission electron microscopy and elemental analysis. High selectivity, broad diversity of organic halides or oz-bromoketones and alkyl/aryl terminal alkynes, and excellent yields of the products were obtained using 0.2 mol% of catalyst. This catalytic system also showed excellent activity in the synthesis of bis-1,4-disubsitituted 1,2,3-triazoles. Moreover, the catalyst could be recycled and reused for seven cycles without any decrease in its catalytic activity. (C) 2015 Elsevier B.V. All rights reserved.
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