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Hydroformylation of higher olefin in halogen-free ionic liquids catalyzed by water-soluble rhodium–phosphine complexes

Paper ID Volume ID Publish Year Pages File Format Full-Text
43506 45973 2007 5 PDF Available
Title
Hydroformylation of higher olefin in halogen-free ionic liquids catalyzed by water-soluble rhodium–phosphine complexes
Abstract

The biphasic hydroformylation of higher olefins was performed efficiently in the halogen-free ionic liquids 1-n-alkyl-3-methylimidazolium p-toluenesulfonate ([Rmim][p-CH3C6H4SO3]) using Rh-TPPTS [TPPTS: trisodium salt of tri(m-sulphonylphenyl)phosphine] complexes as catalyst. The catalytic system offers high activity and chemoselectivity for aldehyde with a good retention of the catalyst in ionic liquid phase. The ionic liquid containing catalyst can be easily separated and reused several times without a significant decrease in the activity and selectivity. The results indicated that the cation and anion of ionic liquids strongly influenced the reaction rate. Furthermore, the reaction rate was markedly accelerated when the chain-length of alkyl in ionic liquids was comparable with that of olefin. A “matching effect” between the chain-length of alkyl in ionic liquids and that of olefins was firstly reported.

Graphical abstractThe biphasic hydroformylation of higher olefins catalyzed by water-soluble rhodium complexes has been efficiently performed in halogen-free ionic liquids [Rmim][p-CH3C6H4SO3]. The catalytic system shows high activity and chemoselectivity for aldehyde and the ionic liquid containing catalyst can be reused several times without a significant decrease in the activity and selectivity. The reaction rate is strongly dependent on the cation and anion of ionic liquids used.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
1-n-alkyl-3-methylimidazolium p-toluenesulfonate; Ionic liquid; Hydroformylation; Water-soluble rhodium–phosphine complexes
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Hydroformylation of higher olefin in halogen-free ionic liquids catalyzed by water-soluble rhodium–phosphine complexes
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 328, Issue 1, 31 August 2007, Pages 83–87
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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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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Any Questions? feel free to contact us