C–H bond functionalisation with [RuH(codyl)2]BF4 catalyst precursor

Wenbo Li; Percia B. Arockiam; Cedric Fischmeister; Christian Bruneau; Pierre H. Dixneuf

doi:10.1039/C1GC15642J

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C–H bond functionalisation with [RuH(codyl)₂]BF₄catalyst precursor†

Wenbo Li,^a Percia B. Arockiam,^a Cedric Fischmeister,*^a Christian Bruneau^a and Pierre H. Dixneuf*^a

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* Corresponding authors

^a Catalyse et Organométalliques, UMR 6226: CNRS-Université de Rennes, Institut Sciences Chimiques de Rennes, Campus de Beaulieu, Rennes, France
E-mail: pierre.dixneuf@univ-rennes1.fr

Abstract

Direct catalytic diarylation with (hetero)arylhalides of arenes containing an heterocycle (pyridine, oxazoline, pyrazole) has been performed with a ruthenium catalyst assisted by a coordinating base. It constitutes a green process for cross-coupled C–C bond formation without any metal salt waste. The new catalytic system is based on [HRu(codyl)₂]BF₄/2KY (KY: KOAc, KOPiv, KPI (potassium phtalimide)] in which the assisting ligand Y promotes the initial cleavage of C–H bonds. It is shown that the efficiency of the Ru/2KY system strongly depends on the nature of both substrates.

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Article information

DOI: https://doi.org/10.1039/C1GC15642J
Article type: Communication
Submitted: 02 Jun 2011
Accepted: 23 Jun 2011
First published: 18 Jul 2011

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Green Chem., 2011,13, 2315-2319

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C–H bond functionalisation with [RuH(codyl)₂]BF₄ catalyst precursor

W. Li, P. B. Arockiam, C. Fischmeister, C. Bruneau and P. H. Dixneuf, Green Chem., 2011, 13, 2315 DOI: 10.1039/C1GC15642J

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