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Polyvinyl alcohol-stabilized cuprous oxide particles: efficient and recyclable heterogeneous catalyst for azide–alkyne cycloaddition in water at room temperature

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Polyvinyl alcohol-stabilized cuprous oxide particles: efficient and recyclable heterogeneous catalyst for azide–alkyne cycloaddition in water at room temperature

Content Provider	Springer Nature Link
Author	Hajipour, Abdol Reza Mohammadsaleh, Fatemeh
Copyright Year	2015
Abstract	The PVA-stabilized Cu$_{2}$O particles were prepared using a novel and simple rout in aqueous medium at room temperature under aerobic conditions. Initially, Cu(II) ions were fixed in PVA matrix via complex formation with OH groups, subsequently this PVA–Cu(II) macromolecular complex as a precursor reacted with ascorbic acid as a reducing agent at pH = 12 to obtain the PVA–Cu$_{2}$O composite. The products were characterized using XRD, FE-SEM, FTIR, and UV–Visible techniques. The as-prepared PVA–Cu$_{2}$O composite was applied as an effective and recyclable heterogeneous catalyst for 1,3-dipolar cycloaddition reactions between terminal alkynes and azides to prepare 1,2,3-triazoles under an environmentally friendly reaction conditions. The substituted triazoles were produced of various aryl and benzyl azides using a catalytic amount of this composite as efficient, stable, and air- and moisture-tolerant catalyst in excellent yields in water at room temperature. These PVA-stabilized Cu$_{2}$O particles could be recovered in a facile manner from the reaction mixture and reused several times without any loss of catalytic activity.
Starting Page	1339
Ending Page	1345
Page Count	7
File Format	PDF
ISSN	1735207X
Journal	Journal of the Iranian Chemical Society
Volume Number	12
Issue Number	8
e-ISSN	17352428
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-03-12
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	1,2,3-Triazoles Analytical Chemistry Cuprous oxide Physical Chemistry Polyvinyl alcohol Click reaction Biochemistry Inorganic Chemistry Catalyst Organic Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry

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