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Pd-TPPTS catalyzed Mizoroki–Heck coupling in halogen-free ionic liquids [Rmim][p-CH3C6H4SO3]

Paper ID Volume ID Publish Year Pages File Format Full-Text
50890 46820 2011 5 PDF Available
Title
Pd-TPPTS catalyzed Mizoroki–Heck coupling in halogen-free ionic liquids [Rmim][p-CH3C6H4SO3]
Abstract

A highly efficient system composed of Pd-TPPTS [TPPTS: trisodium salt of tri(m-sulphonylphenyl)phosphine] and halogen-free ionic liquid ([Rmim][p-CH3C6H4SO3], R = methyl, ethyl, n-butyl, n-hexyl, n-octyl, n-dodecyl) has been established for Heck coupling of aryl halides with styrene. Most of the investigated substrates could give the complete conversions (> 95%) with the catalyst of 1 mol% at 110 °C. The resulting products can be easily separated from the ionic liquids by simple liquid-liquid extraction, and the catalyst immobilized by ionic liquids can be consecutively run five times without significant loss in catalytic activity.

Graphical AbstractWater-soluble Pd-TPPTS carried out the highly efficient Mizoroki–Heck coupling of aryl halide with styrene in [Rmim][p-CH3C6H4SO3].Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Water-soluble ionic liquid [Rmim][p-CH3C6H4SO3] was originally used for Heck coupling. ► The system showed the high reactivity and selectivity with the low palladium loading of 1 mol%. ► Catalyst was recovered easily and recycled.

Keywords
Heck coupling; Palladium; Ionic liquid; Aryl halide
First Page Preview
Pd-TPPTS catalyzed Mizoroki–Heck coupling in halogen-free ionic liquids [Rmim][p-CH3C6H4SO3]
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 12, Issue 8, 31 March 2011, Pages 748–752
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis