Parahydrogen studies of H2 addition to Ir(I) complexes containing chiral phosphine–thioether ligands: implications for catalysis

Raluca Malacea; Jean-Claude Daran; Simon B. Duckett; John P. Dunne; Cyril Godard; Eric Manoury; Rinaldo Poli; Adrian C. Whitwood

doi:10.1039/B601980C

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Parahydrogen studies of H₂ addition to Ir(i) complexes containing chiral phosphine–thioether ligands: implications for catalysis†

Raluca Malacea,^a Jean-Claude Daran,^a Simon B. Duckett,*^b John P. Dunne,^b Cyril Godard,^b Eric Manoury,*^a Rinaldo Poli^a and Adrian C. Whitwood^b

Author affiliations

* Corresponding authors

^a Laboratoire de Chimie de Coordination, CNRS, 205 Route de Narbonne, Toulouse Cedex, France

^b Department of Chemistry, University of York, United Kingdom
E-mail: sbd3@york.ac.uk

Abstract

Ir(CO)[CpFe{η⁵-C₅H₃(PPh₂)CH₂SR}]Cl [R = Ph and ^tBu], containing a κ²:P,S ligand, undergoes H₂ addition across the S–Ir–CO axis under kinetic control to form two distinct diastereoisomeric products, which then rearrange via S dissociation in a process that can be hijacked for useful catalysis, but ultimately form a single diastereoisomer of the thermodynamic product where the hydride ligands are trans to chloride and phosphine.

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Article information

DOI: https://doi.org/10.1039/B601980C
Article type: Paper
Submitted: 09 Feb 2006
Accepted: 06 Apr 2006
First published: 26 Apr 2006

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Dalton Trans., 2006, 3350-3359

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Parahydrogen studies of H₂ addition to Ir(I) complexes containing chiral phosphine–thioether ligands: implications for catalysis

R. Malacea, J. Daran, S. B. Duckett, J. P. Dunne, C. Godard, E. Manoury, R. Poli and A. C. Whitwood, Dalton Trans., 2006, 3350 DOI: 10.1039/B601980C

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Dalton Transactions