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

Author(s) Xu, C.; Talavera, M.; Sander, S.; Braun, T.
Journal Dalton Trans
Date Published 2019 Nov 21
Abstract

The rhodium(i) complexes [Rh(Bpin)(PEt)] (1), [Rh(H)(PEt)] (5) and [Rh(Me)(PEt)] (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)(CHCH(2-CF))(PEt)] (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)(CHCHCF)(CO)(PEt)] (10). Stoichiometric and catalytic hydroboration reactions were achieved using complexes 1 or 5 as catalysts.

DOI 10.1039/c9dt03371h
ISSN 1477-9234
Citation Xu C, Talavera M, Sander S, Braun T. C-H and C-F bond activation reactions of pentafluorostyrene at rhodium complexes. Dalton Trans. 2019;48(43):16258-16267.