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mahmood tajbakhsh

mahmood tajbakhsh

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId:
Faculty: Faculty of Chemistry
Address: /Faculty of chemistry- University of Mazandaran- Babolsar- Iran
Phone: 09111146981

Research

Title
Copper-loaded polymeric magnetic nanocatalysts as retrievable and robust heterogeneous catalysts for click reactions
Type
JournalPaper
Keywords
polymeric magnetic, nanocatalysts, heterogeneous catalysts, click reactions
Year
2015
Journal NEW JOURNAL OF CHEMISTRY
DOI
Researchers ali pourjavadi ، mahmood tajbakhsh ، Maryam Farhang ، seyed hassan Hosseini

Abstract

A novel heterogeneous copper catalyst based on poly(ionic liquid)-coated magnetic nanoparticles was prepared by the polymerization of 3-carboxymethyl-1-vinylimidazolium in the presence of surface-modified magnetic nanoparticles, followed by the coordination of the carboxylate units in the polymer chains with copper sulfate. The resulting catalyst has a high level of loading of copper ions and is used in low weight percent. The catalytic activity of the newly designed catalyst was tested in a one-pot synthesis of 1,4-disubstituted 1,2,3-triazoles by click reactions between primary halides or tosylates, sodium azide and terminal acetylenes at room temperature in aqueous media. The unique nanocatalyst structure and the multi-layered form of coated polymer on the magnetite surface are responsible for the excellent catalytic performance for click reaction