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Cobalt(II) and (I) Complexes of Diphosphine‐Ketone Ligands: Catalytic Activity in Hydrosilylation Reactions

The hydrosilylation of unsaturated compounds homogeneously catalyzed by cobalt complexes has gained considerable attention in the last years, aiming at substituting precious metal‐based catalysts. In this study, the catalytic activity of well‐characterized Co(II) and Co(I) complexes of the (pTol)dpb...

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Autores principales: Verhoeven, Dide G. A., Kwakernaak, Joost, van Wiggen, Maxime A. C., Lutz, Martin, Moret, Marc‐Etienne
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6472597/
https://www.ncbi.nlm.nih.gov/pubmed/31007578
http://dx.doi.org/10.1002/ejic.201801221
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author Verhoeven, Dide G. A.
Kwakernaak, Joost
van Wiggen, Maxime A. C.
Lutz, Martin
Moret, Marc‐Etienne
author_facet Verhoeven, Dide G. A.
Kwakernaak, Joost
van Wiggen, Maxime A. C.
Lutz, Martin
Moret, Marc‐Etienne
author_sort Verhoeven, Dide G. A.
collection PubMed
description The hydrosilylation of unsaturated compounds homogeneously catalyzed by cobalt complexes has gained considerable attention in the last years, aiming at substituting precious metal‐based catalysts. In this study, the catalytic activity of well‐characterized Co(II) and Co(I) complexes of the (pTol)dpbp ligand is demonstrated in the hydrosilylation of 1‐octene with phenylsilane. The Co(I) complex is the better precatalyst for the mentioned reaction under mild conditions, at 1 mol‐% catalyst, 1 h, room temperature, and without solvent, yielding 84 % of octylphenylsilane. Investigation of the substrate scope shows lower performance of the catalyst in styrene hydrosilylation, but excellent results with allylbenzene (84 %) and acetophenone (> 99 %). This catalytic study contributes to the field of cobalt‐catalyzed hydrosilylation reactions and shows the first example of catalysis employing the dpbp ligand in combination with a base metal.
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spelling pubmed-64725972019-04-19 Cobalt(II) and (I) Complexes of Diphosphine‐Ketone Ligands: Catalytic Activity in Hydrosilylation Reactions Verhoeven, Dide G. A. Kwakernaak, Joost van Wiggen, Maxime A. C. Lutz, Martin Moret, Marc‐Etienne Eur J Inorg Chem Full Papers The hydrosilylation of unsaturated compounds homogeneously catalyzed by cobalt complexes has gained considerable attention in the last years, aiming at substituting precious metal‐based catalysts. In this study, the catalytic activity of well‐characterized Co(II) and Co(I) complexes of the (pTol)dpbp ligand is demonstrated in the hydrosilylation of 1‐octene with phenylsilane. The Co(I) complex is the better precatalyst for the mentioned reaction under mild conditions, at 1 mol‐% catalyst, 1 h, room temperature, and without solvent, yielding 84 % of octylphenylsilane. Investigation of the substrate scope shows lower performance of the catalyst in styrene hydrosilylation, but excellent results with allylbenzene (84 %) and acetophenone (> 99 %). This catalytic study contributes to the field of cobalt‐catalyzed hydrosilylation reactions and shows the first example of catalysis employing the dpbp ligand in combination with a base metal. John Wiley and Sons Inc. 2019-01-28 2019-02-07 /pmc/articles/PMC6472597/ /pubmed/31007578 http://dx.doi.org/10.1002/ejic.201801221 Text en © 2019 The Authors. Published by Wiley‐VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
spellingShingle Full Papers
Verhoeven, Dide G. A.
Kwakernaak, Joost
van Wiggen, Maxime A. C.
Lutz, Martin
Moret, Marc‐Etienne
Cobalt(II) and (I) Complexes of Diphosphine‐Ketone Ligands: Catalytic Activity in Hydrosilylation Reactions
title Cobalt(II) and (I) Complexes of Diphosphine‐Ketone Ligands: Catalytic Activity in Hydrosilylation Reactions
title_full Cobalt(II) and (I) Complexes of Diphosphine‐Ketone Ligands: Catalytic Activity in Hydrosilylation Reactions
title_fullStr Cobalt(II) and (I) Complexes of Diphosphine‐Ketone Ligands: Catalytic Activity in Hydrosilylation Reactions
title_full_unstemmed Cobalt(II) and (I) Complexes of Diphosphine‐Ketone Ligands: Catalytic Activity in Hydrosilylation Reactions
title_short Cobalt(II) and (I) Complexes of Diphosphine‐Ketone Ligands: Catalytic Activity in Hydrosilylation Reactions
title_sort cobalt(ii) and (i) complexes of diphosphine‐ketone ligands: catalytic activity in hydrosilylation reactions
topic Full Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6472597/
https://www.ncbi.nlm.nih.gov/pubmed/31007578
http://dx.doi.org/10.1002/ejic.201801221
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