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Issue 2, 2009
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Alkyl dehydrogenation in a Rh(i) complex via an isolated agostic intermediate

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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


Submitted
24 Sep 2008
Accepted
31 Oct 2008
First published
19 Nov 2008

Chem. Commun., 2009, 244-246
Article type
Communication

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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