Iron-Catalyzed C-H Borylation of Arenes.

Thomas Dombray; C. Gunnar Werncke; Shi Jiang; Mary Grellier; Laure Vendier; Sébastien Bontemps; Jean-Baptiste Sortais; Sylviane Sabo-Etienne; Christophe Darcel

doi:10.1021/jacs.5b00895

Journal articles

Iron-Catalyzed C-H Borylation of Arenes.

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

1 ISCR - Institut des Sciences Chimiques de Rennes

2 LCC - Laboratoire de chimie de coordination

3 UT3 - Université Toulouse III - Paul Sabatier

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.

Keywords : trans hydrido boryl iron diphosphine prepn crystal mol structure diphosphine iron catalyzed carbon hydrogen borylation arom heteroarom deriv mol structure calcn hydrido boryl iron diphosphine complex arene carbon hydrogen borylation diphosphine iron catalyzed

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Journal articles

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Chemical Sciences

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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01153417
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Submitted on : Tuesday, May 19, 2015 - 5:25:32 PM
Last modification on : Friday, March 6, 2020 - 1:01:10 PM

Iron-Catalyzed C-H Borylation of Arenes.

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