Imidazolium-based polymer supported gadolinium triflate as a heterogeneous recyclable Lewis acid catalyst for Michael additions

Authors :: Alleti, Ramesh
Oh, Woon Su
Perambuduru, Meher
Ramana, C.V.
Prakash Reddy, V.
Source :: Tetrahedron Letters: International Organ for the Rapid Publication of Preliminary Communications in Organic Chemistry. May2008, Vol. 49 Issue 21, p3466-3470. 5p.
Publication Year :: 2008
Abstract: 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,β-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. [Copyright &y& Elsevier]

Language :: English
ISSN :: 00404039
Volume :: 49
Issue :: 21
Database :: Academic Search Index
Journal :: Tetrahedron Letters: International Organ for the Rapid Publication of Preliminary Communications in Organic Chemistry
Publication Type :: Academic Journal
Accession number :: 31916475
Full Text :: https://doi.org/10.1016/j.tetlet.2008.03.108

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