Imidazolium-Based Polymer Supported Gadolinium Triflate as a Heterogeneous Recyclable Lewis Acid Catalyst for Michael Additions

Abstract

A heterogeneous Lewis acid catalytic system has been developed by incorporating gadolinium triflate on to poly[styrene-co-(1-((4-vinylphenyl)methyl)-3-methylimidazolium) tetrafluoroborate] (1-Gd(OTf)3), and the catalytic activity of this system has been examined for Michael additions of amines and thiols to α,ß-unsaturated esters and acrylonitrile. The reactions proceed in moderate to excellent yields in the presence of catalytic system 1-Gd(OTf)3. The catalytic system could be efficiently recycled and reused.

Department(s)

Chemistry

Sponsor(s)

Petroleum Research Fund

Keywords and Phrases

acrylonitrile; amine; boric acid; ester derivative; gadolinium trifluoromethanesulfonic acid; imidazole derivative; Lewis acid; poly[styrene co [1 [(4 vinylphenyl)methyl] 3 methylimidazolium]tetrafluoroborate]; polymer; thiol derivative; trifluoromethanesulfonic acid; catalysis; chemical reaction; chemical structure; gas chromatography; mass spectrometry; Michael addition; Heterogeneous catalysis

International Standard Serial Number (ISSN)

0040-4039

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2008 Elsevier, All rights reserved.

Publication Date

01 May 2008

Link to Full Text

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