Methoxide-Enabled Zirconium-Catalyzed Migratory Alkene Hydrosilylation
- PMID: 39045883
- DOI: 10.1002/anie.202413182
Methoxide-Enabled Zirconium-Catalyzed Migratory Alkene Hydrosilylation
Abstract
A zirconocene dichloride-catalyzed alkene hydrosilylation is reported that can be applied to non-activated and conjugated terminal and internal alkenes. It involves a catalytic Zr-walk process and leads to a selective conversion to the linear product. Lithium methoxide serves as mild catalyst activating agent, which significantly increases the applicability and operational simplicity in comparison to earlier zirconium(II)-based protocols. Supported by additional experiments and calculations, a mechanism via zirconium(IV) intermediates is proposed. Due to the benign nature and ready-availability of the zirconium catalyst, the reaction is an attractive alternative to established alkene hydrosilylation methods.
Keywords: alkene; catalysis; hydrosilylation; metal walk; zirconium.
© 2024 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.
References
-
- None
-
- I. Ojima, Z. Li, J. Zhu in The Chemistry of Organic Silicon Compounds, Vol. 2 (Eds.: Z. Rappoport, Y. Apeloig), Wiley, Chichester, 1998, pp. 1687–1792;
-
- D. Troegel, J. Stohrer, Coord. Chem. Rev. 2011, 255, 1440–1459;
-
- X. Wang, Z. Cheng, Z. Lu, Hydrosilylation of C−C π-Bonds, Reference Module in Chemistry, Molecular Sciences and Chemical Engineering, Elsevier, Amsterdam, 2023. For an advanced version of Karstedt's catalyst, see:
-
- I. E. Markó, S. Stérin, O. Buisine, G. Mignani, P. Branlard, B. Tinant, J.-P. Declercq, Science 2002, 298, 204–206.
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