Chiral Ammonium Betaines as Ionic Nucleophilic Catalysts

Authors

  • Daisuke Uraguchi Dr.,

    1. Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho B2-3(611), Chikusa, Nagoya 464-8603 (Japan), Fax: (+81) 52-789-3338
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  • Kyohei Koshimoto,

    1. Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho B2-3(611), Chikusa, Nagoya 464-8603 (Japan), Fax: (+81) 52-789-3338
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  • Shuhei Miyake,

    1. Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho B2-3(611), Chikusa, Nagoya 464-8603 (Japan), Fax: (+81) 52-789-3338
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  • Takashi Ooi Prof. Dr.

    1. Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho B2-3(611), Chikusa, Nagoya 464-8603 (Japan), Fax: (+81) 52-789-3338
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  • This work has been supported by the Sumitomo Foundation, the Global COE program in Chemistry of Nagoya University, and the Tatematsu Foundation.

Abstract

original image

Ungeahnte Qualitäten: Das chirale Ammoniumbetain 1 war als ionischer nucleophiler Katalysator in der asymmetrischen Steglich-Umlagerung erfolgreich. Die Umsetzung ergab rekordverdächtige Enantioselektivitäten und war auf vielfältige Substrate anwendbar. M.S. = Molekularsieb, Troc = 2,2,2-Trichlorethoxycarbonyl.

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