Hydrodeoxygenation of Vicinal OH Groups over Heterogeneous Rhenium Catalyst Promoted by Palladium and Ceria Support |
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| Authors: | Nobuhiko Ota Dr Masazumi Tamura Dr Yoshinao Nakagawa Prof Kazu Okumura Prof Keiichi Tomishige |
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| Institution: | 1. Graduate School of Engineering, Tohoku University, Aoba 6‐6‐07, Aramaki, Aoba‐ku, Sendai, 980‐8579 (Japan);2. Faculty of Engineering, Kogakuin University, Nakano‐machi 2665‐1, Hachioji, Tokyo, 192‐0015 (Japan) |
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| Abstract: | Heterogeneous ReOx–Pd/CeO2 catalyst showed excellent performance for simultaneous hydrodeoxygenation of vicinal OH groups. High yield (>99 %), turnover frequency (300 h?1), and turnover number (10 000) are achieved in the reaction of 1,4‐anhydroerythritol to tetrahydrofuran. This catalyst can be applied to sugar alcohols, and mono‐alcohols and diols are obtained in high yields (≥85 %) from substrates with even and odd numbers of OH groups, respectively. The high catalytic performance of ReOx–Pd/CeO2 can be assigned to rhenium species with +4 or +5 valence state, and the formation of this species is promoted by H2/Pd and the ceria support. |
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| Keywords: | heterogeneous catalysis hydrodeoxygenation palladium rhenium oxide sugar alcohols |
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