• Open Access

Single Site Supported Cationic Rhodium(I) Complexes for the Selective Redox Isomerization of Allylic Alcohols

Authors

  • Dr. Suman Sahoo,

    1. Berzelii Centre EXSELENT on Porous Materials, Stockholm University, SE-106 91, Stockholm (Sweden)
    2. Inorganic and Structural Chemistry Unit, Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91, Stockholm (Sweden), Fax: (+46) 8-15-21-87
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  • Helena Lundberg,

    1. Berzelii Centre EXSELENT on Porous Materials, Stockholm University, SE-106 91, Stockholm (Sweden)
    2. Department of Organic Chemistry, Stockholm University, SE-106 91, Stockholm (Sweden), Fax: (+46) 8-15-49-08
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  • Assoc. Prof. Mattias Edén,

    1. Physical Chemistry Unit, Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm (Sweden)
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  • Nanna Ahlsten,

    1. Berzelii Centre EXSELENT on Porous Materials, Stockholm University, SE-106 91, Stockholm (Sweden)
    2. Department of Organic Chemistry, Stockholm University, SE-106 91, Stockholm (Sweden), Fax: (+46) 8-15-49-08
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  • Dr. Wei Wan,

    1. Berzelii Centre EXSELENT on Porous Materials, Stockholm University, SE-106 91, Stockholm (Sweden)
    2. Inorganic and Structural Chemistry Unit, Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91, Stockholm (Sweden), Fax: (+46) 8-15-21-87
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  • Prof. Xiaodong Zou,

    Corresponding author
    1. Berzelii Centre EXSELENT on Porous Materials, Stockholm University, SE-106 91, Stockholm (Sweden)
    2. Inorganic and Structural Chemistry Unit, Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91, Stockholm (Sweden), Fax: (+46) 8-15-21-87
    • Berzelii Centre EXSELENT on Porous Materials, Stockholm University, SE-106 91, Stockholm (Sweden)

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  • Assoc. Prof. Belén Martín-Matute

    Corresponding author
    1. Berzelii Centre EXSELENT on Porous Materials, Stockholm University, SE-106 91, Stockholm (Sweden)
    2. Department of Organic Chemistry, Stockholm University, SE-106 91, Stockholm (Sweden), Fax: (+46) 8-15-49-08
    • Berzelii Centre EXSELENT on Porous Materials, Stockholm University, SE-106 91, Stockholm (Sweden)

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Abstract

The isomerization of allylic alcohols to carbonyl compounds by a heterogeneous rhodium complex is reported. Different silica material supports and catalyst/ligand systems were evaluated. The most efficient catalyst in terms of catalytic activity and stability was found to be a cationic rhodium(I) complex with sulfonated phosphine ligands anchored on a mesoporous aluminosilica AlSBA-15. The heterogeneous complex catalyzed the isomerization of a variety of allylic alcohols in excellent yields with very low catalyst loadings (0.5 mol %). The catalyst could be recycled without significant loss of activity or selectivity. The optimized catalyst was characterized by N2 sorption, powder X-ray diffraction, transmission electron microscopy, as well as solution and solid-state nuclear magnetic resonance, and Fourier Transform infrared spectroscopies.

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