Preparation and reactions of monocyclic bis(cyclopentadienyl)titanacyclopentenes and -pentadienes

Kimihiko Sato, Yasushi Nishihara, Shouquan Huo, Zhenfeng Xi, Tamotsu Takahashi

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)


A combination of Cp2TiCl2-2EtMgBr was found to be very effective for the formation of monocyclic titanacyclopentenes in excellent yields. On the other hand, a combination of Cp2TiCl2-2n-BuLi was used for intermolecular coupling of two alkynes to form titanacyclopentadienes in good to excellent yields. A reaction temperature range from -10 to -30°C was critical for the success of the combinations. Reactions of these in situ-prepared titanacycles show interesting similarities to or differences from their zirconacycle analogs.

Original languageEnglish
Pages (from-to)18-26
Number of pages9
JournalJournal of Organometallic Chemistry
Issue number1-2
Publication statusPublished - Aug 10 2001
Externally publishedYes


  • Intermolecular coupling
  • Titanacyclopentadiene
  • Titanacyclopentene
  • Titanocene-ethylene complex

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry


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