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Title

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

Authors
Chaplin, Adrian B.
Sparkes, Hazel A.
Howard, Judith A. K.
Macgregor, Stuart A.
Weller, Andrew S.
Published in Chemical Communications. 2009, no. 2, p. 244-246
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.
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CHAPLIN, Adrian B. et al. Alkyl dehydrogenation in a Rh(i) complex via an isolated agostic intermediate. In: Chemical Communications, 2009, n° 2, p. 244-246. https://archive-ouverte.unige.ch/unige:25966

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Deposited on : 2013-01-28

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