Synthesis 2018; 50(13): 2595-2600
DOI: 10.1055/s-0037-1609730
paper
© Georg Thieme Verlag Stuttgart · New York

Cobalt-Catalyzed Formation of 2-Pyridylzinc Reagents and Their Subsequent Coupling

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We acknowledge École Polytechnique and CNRS for financial support.
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Publikationsverlauf

Received: 15. März 2018

Accepted after revision: 04. April 2018

Publikationsdatum:
25. Mai 2018 (online)


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These authors contributed equally to this work.

Abstract

The preparation of pyridylzinc compounds from the corresponding pyridyl halides using a cobalt catalyst is described. The complex employed features a polydentate N-heterocyclic ligand and allows the reaction to be carried out in the absence of pyridine as co-solvent and also in THF in place of acetonitrile. First cross-coupling attempts are also presented. Satisfactory yields were obtained via a one-pot protocol without the addition of another catalyst.