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Synlett 1996; 1996(5): 437-438
DOI: 10.1055/s-1996-5459
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Intramolecular Carbon-Carbon Bond Forming Reactions Mediated by XTi(OPr-i)3 (X = Cl or OPr-i) / 2i-PrMgBr Reagent: Efficient Synthesis of Cyclopentanols Having an Ethenylidene or Alkynyl Moiety at the β-Position

Yukio Yoshida, Takashi Nakagawa, Fumie Sato*
  • *Department of Biomolecular Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226, Japan
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Publication Date:
31 December 2000 (online)

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Reactions of propargyl halides or propargyl alcohol derivatives containing a carbonyl moiety with (η 2-propene)Ti(OPr-i)2 resulted in intramolecular carbonyl addition reaction to provide cyclopentanols having an ethenylidene or alkynyl moiety at the β-position.

intramolecular carbon-carbon bond forming reactions - cyclopentanols - (η 2-propene)Ti(OPr-i)2