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. 2015 Apr 1;137(12):4062-5.
doi: 10.1021/jacs.5b00895. Epub 2015 Mar 17.

Iron-catalyzed C-H borylation of arenes

Thomas Dombray  1 , C Gunnar Werncke  2   3 , Shi Jiang  1 , Mary Grellier  2   3 , Laure Vendier  2   3 , Sébastien Bontemps  2   3 , Jean-Baptiste Sortais  1 , Sylviane Sabo-Etienne  2   3 , Christophe Darcel  1
Affiliations

Iron-catalyzed C-H borylation of arenes

Thomas Dombray et al. J Am Chem Soc. .

Abstract

Well-defined iron bis(diphosphine) complexes are active catalysts for the dehydrogenative C-H borylation of aromatic and heteroaromatic derivatives with pinacolborane. The corresponding borylated compounds were isolated in moderate to good yields (25-73%) with a 5 mol% catalyst loading under UV irradiation (350 nm) at room temperature. Stoichiometric reactivity studies and isolation of an original trans-hydrido(boryl)iron complex, Fe(H)(Bpin)(dmpe)2, allowed us to propose a mechanism showing the role of some key catalytic species.

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