[2 + 2 + 1] Cycloaddition between Alkynes, Acrylates, and Titanocene(II): Regioselective Formation of 5-Alkoxycarbonyltitanacyclopent-2-enes and Their Addition to Carbonyls

  • Shigeki Oishi
    Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology
  • Kaoru Ohomika
    Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology
  • Akira Tsubouchi
    Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology
  • Takeshi Takeda
    Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology

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<jats:title>Abstract</jats:title> <jats:p>5-Alkoxycarbonyltitanacyclopent-2-enes were produced regioselectively by the [2 + 2 + 1] cycloaddition between alkynes, acrylates, and titanocene(II) reagent Cp2Ti[P(OEt)3]2. Although the titanacycles were inactive toward carbonyl compounds, their addition proceeded in the presence of titanocene(II).</jats:p>

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  • Chemistry Letters

    Chemistry Letters 39 (7), 723-725, 2010-06-05

    Oxford University Press (OUP)

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