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Issue 43, 2019
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C–H and C–F bond activation reactions of pentafluorostyrene at rhodium complexes

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Abstract

The rhodium(I) complexes [Rh(Bpin)(PEt3)3] (1), [Rh(H)(PEt3)3] (5) and [Rh(Me)(PEt3)3] (14) were employed in reactions with pentafluorostyrene affording coordination of the olefin and C–F or C–H bond activation. Control of the reaction conditions allowed for selective activation reactions at different positions at the fluorinated aromatic ring. The rhodacycle trans-[Rh(F)(CH2CH2(2-C6F4))(PEt3)2] (7) was identified as an intermediate for an activation at the 2-position. Reactivity studies of the latter with CO led to the generation of trans-[Rh(F)(CH2CH2C6F4)(CO)(PEt3)2] (10). Stoichiometric and catalytic hydroboration reactions were achieved using complexes 1 or 5 as catalysts.

Graphical abstract: C–H and C–F bond activation reactions of pentafluorostyrene at rhodium complexes

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Supplementary files

Article information


Submitted
18 Aug 2019
Accepted
09 Oct 2019
First published
16 Oct 2019

Dalton Trans., 2019,48, 16258-16267
Article type
Paper

C–H and C–F bond activation reactions of pentafluorostyrene at rhodium complexes

C. Xu, M. Talavera, S. Sander and T. Braun, Dalton Trans., 2019, 48, 16258
DOI: 10.1039/C9DT03371H

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