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<p>A commercially available nitrogen/phosphino-functionalized triethoxysilane was grafted onto the surface of silica-coated magnetic nanoparticles (MNPs, Fe₃O₄@SiO₂) via etherification, affording a series of nitrogen/phosphino-functionalized MNPs (Fe₃O₄@SiO₂-N/P). Subsequent reaction with chloroplatinic acid yielded a series of platinum(II)-anchored functionalized MNPs (Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-N/P-H<sub>2</sub>PtCl<sub>6</sub>). When these complexes were tested in the hydrosilylation of olefins, the phosphine-modified MNP-chelated platinum catalyst (Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-P2-H<sub>2</sub>PtCl<sub>6</sub>) was identified as the optimal catalyst. It efficiently promoted the hydrosilylation of olefins under mild conditions, accommodating a broad range of olefins and silanes to afford the corresponding products in moderate to excellent yields and regioselectivity. Moreover, the catalyst could be easily recovered via an external magnetic field and reused for at least nine cycles without significant loss of catalytic activity.</p> Graphical Abstract <p></p>

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A Highly Efficient and Recyclable Magnetic Nanoparticle Anchored Platinum Complex Catalyzed Hydrosilylation of Olefins

  • 期刊论文

  • 发表日期：

    2025年12月9日

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  • Changjiang Xu,
  • Yuke Yang,
  • Yuxiang Li,
  • Ling Li,
  • Dong Liu,
  • Qiu Zeng,
  • Shengyong You

摘要

A commercially available nitrogen/phosphino-functionalized triethoxysilane was grafted onto the surface of silica-coated magnetic nanoparticles (MNPs, Fe₃O₄@SiO₂) via etherification, affording a series of nitrogen/phosphino-functionalized MNPs (Fe₃O₄@SiO₂-N/P). Subsequent reaction with chloroplatinic acid yielded a series of platinum(II)-anchored functionalized MNPs (Fe3O4@SiO2-N/P-H2PtCl6). When these complexes were tested in the hydrosilylation of olefins, the phosphine-modified MNP-chelated platinum catalyst (Fe3O4@SiO2-P2-H2PtCl6) was identified as the optimal catalyst. It efficiently promoted the hydrosilylation of olefins under mild conditions, accommodating a broad range of olefins and silanes to afford the corresponding products in moderate to excellent yields and regioselectivity. Moreover, the catalyst could be easily recovered via an external magnetic field and reused for at least nine cycles without significant loss of catalytic activity.

Graphical Abstract