Rhodium‐catalysed hydroformylation of 1‐octene using aryl and ferrocenyl Schiff base‐derived ligands

Monometallic and heterobimetallic complexes of Rh(I) bearing chelating N,O‐bidentate aryl‐ and ferrocenyl‐derived ligands have been synthesised via Schiff base condensation reactions, and characterised fully using 1H NMR, 13C{1H} NMR and Fourier transform infrared spectroscopies, elemental analysis...

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Bibliographic Details
Published in:Applied organometallic chemistry 2017-04, Vol.31 (4), p.np-n/a
Main Authors: Siangwata, Shepherd, Chulu, Sisasenkosi, Oliver, Clive L., Smith, Gregory S.
Format: Article
Language:English
Subjects:
Aldehydes
Aromatic compounds
Bearing
Catalysts
Chelating
Chelation
Chemical synthesis
Chemistry
Condensation
Coordination compounds
Ferrocene
Fourier analysis
Fourier transforms
homogeneous catalysis
hydroformylation
Infrared analysis
Infrared spectroscopy
Ligands
Mass spectrometry
NMR
Nuclear magnetic resonance
Octenes
Precursors
Rhodium
Schiff base
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Summary:Monometallic and heterobimetallic complexes of Rh(I) bearing chelating N,O‐bidentate aryl‐ and ferrocenyl‐derived ligands have been synthesised via Schiff base condensation reactions, and characterised fully using 1H NMR, 13C{1H} NMR and Fourier transform infrared spectroscopies, elemental analysis and mass spectrometry. The new monometallic and heterobimetallic complexes were evaluated as potential catalyst precursors in the hydroformylation of 1‐octene at 95°C and 40 bar. The ferrocenylimine mononuclear compounds were inactive in the hydroformylation experiments. The Rh(I) monometallic and the ferrocene–Rh(I) heterobimetallic pre‐catalysts displayed good activity and conversion of 1‐octene as well as outstanding chemoselectivity towards aldehydes in the hydroformylation reaction. A series of monometallic and heterobimetallic complexes of Rh(I) bearing chelating N,O‐bidentate aryl‐ and ferrocenyl‐derived ligands have been synthesised and fully charactetrsied. The Rh(I) monometallic and the ferrocene‐Rh(I) heterobimetallic complexes displayed good activity as catalyst precursors in the hydroformylation of 1‐octene at 95 °C and 40 bar, as well as outstanding chemoselectivity towards aldehydes in the hydroformylation reaction. The ferrocenylimine mononuclear compounds were inactive in the hydroformylation experiments.
ISSN:0268-2605
1099-0739
DOI:10.1002/aoc.3593