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Aqueous biphasic hydrogenations catalyzed by rhodium and iridium complexes modified with human serum albumin

Paper ID Volume ID Publish Year Pages File Format Full-Text
42227 45916 2010 5 PDF Available
Title
Aqueous biphasic hydrogenations catalyzed by rhodium and iridium complexes modified with human serum albumin
Abstract

Water soluble complexes derived from the interaction between Rh(CO)2(acac) and [Ir(COD)Cl]2, respectively, with human serum albumin (HSA), were employed in the aqueous biphasic hydrogenation of α,β-unsaturated compounds as 2-cyclohexen-1-one (I), 2-butenal (V), 3-phenyl-2-propenal (IX) and 3-aryl-2-methyl-2-propenals (XIII and XVII).Both catalytic systems Rh/HSA and Ir/HSA showed to be very active in the hydrogenation of ketone I even at low temperature and hydrogen pressure; in particular, the rhodium based catalyst showed to be very selective affording exclusively cyclohexanone (II). The α,β-unsaturated aldehydes investigated required higher temperature (up to 60 °C) and pressure (5 MPa) to obtain good conversions. In this case Rh/HSA resulted to be more active than Ir based catalyst. In all cases both Rh/HSA and Ir/HSA were easily recycled without significant loss of activity.

Graphical abstractThe catalytic systems Rh/HSA and Ir/HSA (HSA = human serum albumin) were active in the aqueous biphasic hydrogenation of representatives α,β-unsaturated substrates. Both catalysts were easily recycled without significant loss of activity.Figure optionsDownload full-size imageDownload high-quality image (79 K)Download as PowerPoint slide

Keywords
Hydrogenation; Biphasic catalysis; Rhodium catalyst; Iridium catalyst; Human serum albumin
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Aqueous biphasic hydrogenations catalyzed by rhodium and iridium complexes modified with human serum albumin
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 373, Issues 1–2, 31 January 2010, Pages 76–80
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
Online Support
Any Questions? feel free to contact us