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Hydrogenation of phenylacetylene and 3-phenylpropyne using Rh(diene) complexes under homogeneous and heterogeneous conditions

Paper ID Volume ID Publish Year Pages File Format Full-Text
42365 45922 2010 6 PDF Available
Title
Hydrogenation of phenylacetylene and 3-phenylpropyne using Rh(diene) complexes under homogeneous and heterogeneous conditions
Abstract

Hydrogenation of phenylacetylene (PA) and 3-phenylpropyne (PP) was carried out using [Rh(diene)Cl]2 complexes (diene is hexadiene (HD), cycloocta-1,5-diene (COD), norborna-2,5-diene (NBD)) in their immobilized forms and compared with hydrogenation in homogeneous arrangement. Immobilization brings significant increase of the catalytic activity and product selectivity in the step-wise hydrogenation to corresponding vinyl-resp. allyl-benzenes. Diene-ligand effect was apparent in PA hydrogenation; the product selectivity decreased in order Rh(HD) > Rh(NBD) > Rh(COD) and catalytic activity decreased in order Rh(HD) > Rh(COD) > Rh(NBD).

Graphical abstractPhenylacetylene and 3-phenylpropyne were hydrogenated using [Rh(diene)Cl]2 complexes in their immobilized forms and compared with hydrogenation in homogeneous arrangement.Figure optionsDownload full-size imageDownload high-quality image (58 K)Download as PowerPoint slide

Keywords
Phenylacetylene; Rh(diene)complex; Selective hydrogenation
First Page Preview
Hydrogenation of phenylacetylene and 3-phenylpropyne using Rh(diene) complexes under homogeneous and heterogeneous conditions
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 372, Issue 1, 5 January 2010, Pages 34–39
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis