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Erbium triflate in ionic liquids: A recyclable system of improving selectivity in Diels–Alder reactions

Paper ID Volume ID Publish Year Pages File Format Full-Text
42284 45919 2010 6 PDF Available
Title
Erbium triflate in ionic liquids: A recyclable system of improving selectivity in Diels–Alder reactions
Abstract

The efficiency of Er(OTf)3 in promoting the Diels–Alder reactions between different dienes and dienophiles in ionic liquids has been investigated. Compared with the analogous cycloadditions performed in conventional solvents shorter reaction times are required to obtain good/excellent yields. In most cases an enhancement of regio- and endo:exo selectivity was observed. The role of the ionic liquid, as a function of the cationic part, i.e. the imidazolium based or the pyridinium based, is discussed well. The ILs containing the catalyst can be readily separated from the reaction products and recovered in very high purity for direct reuse, up to six cycles.

Graphical abstractThe efficiency of Er(OTf)3 in promoting the Diels–Alder reactions between different dienes and dienophiles in ionic liquids has been investigated. In most cases an enhancement of regio- and endo:exo selectivity was observed. The ILs containing the catalyst can be readily separated from the reaction products and recovered in excellent purity for direct reuse, up to six cycles.Figure optionsDownload full-size imageDownload high-quality image (42 K)Download as PowerPoint slide

Keywords
Ionic liquid; Erbium triflate catalyst; Diels–Alder reactions
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Erbium triflate in ionic liquids: A recyclable system of improving selectivity in Diels–Alder reactions
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 372, Issue 2, 15 January 2010, Pages 124–129
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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