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The homogenization of zirconium hydroxide phosphonate-supported ruthenium catalyst in asymmetric hydrogenation

Paper ID Volume ID Publish Year Pages File Format Full-Text
51101 46830 2011 6 PDF Available
Title
The homogenization of zirconium hydroxide phosphonate-supported ruthenium catalyst in asymmetric hydrogenation
Abstract

A series of novel organosoluble zirconium phosphonate nanocomposites and their supported ruthenium catalysts with an organosoluble (20–142 mg mL− 1), mesoporous and layered structure were prepared. Due to organosolubilities in various organic solvents, the homogenization of the zirconium phosphonate-supported catalyst was realized in the asymmetric hydrogenation of ethyl pyruvate, in which supported ruthenium catalysts possessed higher conversion, isolated yield and enantioselectivity than corresponding homogeneous Ru(p-cymene)(S-Binap)Cl2 owing to site-isolation and confinement effect. After completing the reaction, the supported ruthenium catalyst can be recovered readily and quantitatively by addition of a poor solvent and centrifugation, and reused for five consecutive runs without significant loss in catalytic properties.

Graphical AbstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch Highlights►Organosoluble zirconium phosphonate-supported ruthenium catalysts were prepared. ►A catalytic reaction can be run under homogeneous conditions in organic solvents. ►Supported ruthenium catalyst was quantitatively recovered by solid/liquid separation. ►Better catalytic properties were observed owing to confinement effect.

Keywords
Zirconium phosphonate; Organosoluble; Supported; Ruthenium; Asymmetric hydrogenation
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The homogenization of zirconium hydroxide phosphonate-supported ruthenium catalyst in asymmetric hydrogenation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 12, Issue 7, 10 March 2011, Pages 583–588
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
Online Support
Any Questions? feel free to contact us