Issue 2, 2009
From the journal:

Chemical Communications

Alkyl dehydrogenation in a Rh(i) complex via an isolated agostic intermediate†

Adrian B. Chaplin,a   Amalia I. Poblador-Bahamonde,b   Hazel A. Sparkes,c   Judith A. K. Howard,*c   Stuart A. Macgregor*b  and  Andrew S. Weller*a  

* Corresponding authors

a Department of Inorganic Chemistry, University of Oxford, UK
E-mail: andrew.weller@chem.ox.ac.uk

b School of EPS – Chemistry, Heriot-Watt University, Edinburgh, UK
E-mail: S.A.Macgregor@hw.ac.uk

c Department of Chemistry, University Science Laboratories, South Road, Durham, UK
E-mail: j.a.k.howard@durham.ac.uk

Abstract

A well-characterised 14-electron rhodium phosphine complex, [Rh(PiPr3)3][BArF4], which contains a β-CH agostic interaction, is observed to undergo spontaneous dehydrogenation to afford [Rh(PiPr3)2(PiPr2(C3H5))][BArF4]; calculations on a model system show that while C–H activation is equally accessible from the β-CH agostic species or an alternative γ-CH agostic isomer, subsequent β-H-transfer can only be achieved along pathways originating from the β-CH agostic form.

Graphical abstract: Alkyl dehydrogenation in a Rh(i) complex via an isolated agostic intermediate

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Article information

DOI
https://doi.org/10.1039/B816739G
Article type
Communication
Submitted
24 Sep 2008
Accepted
31 Oct 2008
First published
19 Nov 2008

Chem. Commun., 2009, 244-246

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Alkyl dehydrogenation in a Rh(I) complex via an isolated agostic intermediate

A. B. Chaplin, A. I. Poblador-Bahamonde, H. A. Sparkes, J. A. K. Howard, S. A. Macgregor and A. S. Weller, Chem. Commun., 2009, 244 DOI: 10.1039/B816739G

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