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Heterogeneously Catalyzed Efficient Alkyne–Alkyne Homocoupling by Supported Copper Hydroxide on Titanium Oxide

Authors

  • Takamichi Oishi,

    1. Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan), Fax: (+81) 3-5841-7220
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  • Tatsuyori Katayama,

    1. Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan), Fax: (+81) 3-5841-7220
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  • Kazuya Yamaguchi Dr.,

    1. Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan), Fax: (+81) 3-5841-7220
    2. Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012 (Japan)
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  • Noritaka Mizuno Prof. Dr.

    1. Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan), Fax: (+81) 3-5841-7220
    2. Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012 (Japan)
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Abstract

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The supported copper hydroxide on titanium oxide (Cu(OH)x/TiO2) has been shown to act as an efficient heterogeneous catalyst for the oxidative alkyne–alkyne homocoupling. A wide variety of alkynes including aromatic, aliphatic, double-bond-containing, and silylacetylene derivatives were selectively converted into the corresponding diyne derivatives in high yields without any additives such as bases.

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