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Vapor-phase Hydrosilylation Using a Transition Metal Complex Catalyst in a Liquid Polymer Medium Supported on Silica Gel

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Abstract

Transition metal catalysts in various liquid polymer media supported on silica gel were prepared and used for vapor-phase hydrosilylation. Tetraammineplatinum(II) chloride and potassium hexachloroplatinate(IV) in a polyethylene glycol (PEG) medium showed high and stable activity. Deactivation of the catalyst was not observed unless a high platinum concentration in PEG was used. When the amount of PEG was 40 vol% of the pore volume of silica gel, PEG was coated on the pore walls of the silica gel, and did not block the pore openings. Active species in the PEG were formed only during the reaction.

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Acknowledgment

The EXAFS experiments were performed at the Photon Factory with the approval of High Energy Accelerator Research Organization, Japan (Proposal No. 2001G306).

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Authors and Affiliations

  1. Department of Applied Chemistry, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan

    Masaki Okamoto

  2. Department of Chemistry and Materials Science, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo, 152-8550, Japan

    Hironari Kiya, Akihiko Matsumura & Eiichi Suzuki

Authors
  1. Masaki Okamoto
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  2. Hironari Kiya
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  3. Akihiko Matsumura
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  4. Eiichi Suzuki
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Correspondence to Masaki Okamoto.

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Okamoto, M., Kiya, H., Matsumura, A. et al. Vapor-phase Hydrosilylation Using a Transition Metal Complex Catalyst in a Liquid Polymer Medium Supported on Silica Gel. Catal Lett 123, 72–79 (2008). https://doi.org/10.1007/s10562-008-9395-7

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  • DOI: https://doi.org/10.1007/s10562-008-9395-7

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