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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
NANO-Fe3O4–SUPPORTED, HYDROGENSULFATE IONIC LIQUID–CATALYZED, ONE-POTSYNTHESIS OF POLYSUBSTITUTEDPYRIDINES
Type
JournalPaper
Keywords
Magnetic nanoparticle;nano-Fe3O4; polysubstitutedpyridines;solvent-free condition; supportedionicliquids
Year
2015
Journal SYNTHETIC COMMUNICATIONS
DOI
Researchers Heshmatollah Alinezhad ، mahmood tajbakhsh ، Neda Ghobadi

Abstract

Anchoring 1-methyl-3-(triethoxysilylpropyl)imidazoliumchlorideontosilica- coated magneticFe3O4 particles affordedthecorrespondingsupportedionicliquid. Exchanging theCl anion bytreatingwithH2SO4 gave Brønstedionicliquid1-methyl- 3-(triethoxysilylpropyl) imidazoliumhydrogensulfate.Thesynthesizedcatalystwas characterized byvarioustechniquessuchasinfrared,x-raydiffraction,scanningelectron microscopy, thermogravimetricanalysis,andelementalanalyses.Theresultsindicated that thepreparedcatalysthadananostructure.Thecatalyticactivityofthesupported ionic liquidwasexaminedinthesynthesisofthepolysubstitutedpyridinesbyreactionof aromatic aldehydeswithacetophenonesandammoniumacetateinmoderatetogood yields undersolvent-freeconditions.Thecatalystcanbeeasilyrecoveredbyapplyingan external magneticfieldandreusedforatleastsevenrunswithoutdeteriorationin catalytic activity.