Transesterification of Diethyl Oxalate with Phenol over Sol–Gel MoO3/TiO2 Catalysts

Authors

  • Trupti Kotbagi,

    1. Catalysis Division, National Chemical Laboratory, Pune, 411008 (India), Fax: (+91) 20-25903761
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  • Duy Luan Nguyen,

    1. Univ. Lille Nord de France, F-59000, Lille (France)
    2. CNRS UMR8181, Unité de Catalyse et Chimie du Solide, UCCS, F-59655 Villeneuve d'Ascq (France)
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  • Prof. Dr. Christine Lancelot,

    1. Univ. Lille Nord de France, F-59000, Lille (France)
    2. CNRS UMR8181, Unité de Catalyse et Chimie du Solide, UCCS, F-59655 Villeneuve d'Ascq (France)
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  • Carole Lamonier,

    1. Univ. Lille Nord de France, F-59000, Lille (France)
    2. CNRS UMR8181, Unité de Catalyse et Chimie du Solide, UCCS, F-59655 Villeneuve d'Ascq (France)
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  • Kaew-Arpha Thavornprasert,

    1. Univ. Lille Nord de France, F-59000, Lille (France)
    2. CNRS UMR8181, Unité de Catalyse et Chimie du Solide, UCCS, F-59655 Villeneuve d'Ascq (France)
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  • Zhu Wenli,

    1. Univ. Lille Nord de France, F-59000, Lille (France)
    2. CNRS UMR8181, Unité de Catalyse et Chimie du Solide, UCCS, F-59655 Villeneuve d'Ascq (France)
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  • Dr. Mickaël Capron,

    1. Univ. Lille Nord de France, F-59000, Lille (France)
    2. CNRS UMR8181, Unité de Catalyse et Chimie du Solide, UCCS, F-59655 Villeneuve d'Ascq (France)
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  • Dr. Louise Jalowiecki-Duhamel,

    1. Univ. Lille Nord de France, F-59000, Lille (France)
    2. CNRS UMR8181, Unité de Catalyse et Chimie du Solide, UCCS, F-59655 Villeneuve d'Ascq (France)
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  • Dr. Shubhangi Umbarkar,

    Corresponding author
    1. Catalysis Division, National Chemical Laboratory, Pune, 411008 (India), Fax: (+91) 20-25903761
    • Catalysis Division, National Chemical Laboratory, Pune, 411008 (India), Fax: (+91) 20-25903761
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  • Dr. Mohan Dongare,

    1. Catalysis Division, National Chemical Laboratory, Pune, 411008 (India), Fax: (+91) 20-25903761
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  • Prof. Dr. Franck Dumeignil

    Corresponding author
    1. Univ. Lille Nord de France, F-59000, Lille (France)
    2. CNRS UMR8181, Unité de Catalyse et Chimie du Solide, UCCS, F-59655 Villeneuve d'Ascq (France)
    3. Institut Universitaire de France, Maison des Universités, 10 Boulevard Saint-Michel, F-75005 Paris (France)
    • Univ. Lille Nord de France, F-59000, Lille (France)
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Abstract

The transesterification of diethyl oxalate (DEO) with phenol to form diphenyl oxalate (DPO) has been carried out in the liquid phase over very efficient MoO3/TiO2 solid-acid sol–gel catalysts. A selectivity of 100 % with a remarkable maximum yield of 88 % were obtained, which opens the route to downstream phosgene-free processes for the synthesis of polycarbonates. Interpretation of the results of various acidity measurements (NH3 and pyridine desorption, methanol oxidation as a probe reaction) allowed us to identify the catalytic sites as Lewis acid sites.

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