Diene-yne cyclisation reactions of 1-ethynyl-2-vinyl-3,4- dihydronaphthalenes and 1-ethynyl-2-vinylnaphthalenes

Masataka Watanabe, Kodai Shiine, Keiko Ldeta, Taisuke Matsumoto, Thies Thiemann

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


The reaction of 1-ethynyl-2-vinyl-3,4-dihydronaphthalenes and 1-ethynyl-2-vinylnaphthalenes over RuCI2(p-cymene) PPh3 leads to 9,10-dihydrophenanthrenes and phenanthrenes in those cases where the ethynyl group in the substrates carries a terminal proton. When 1-phenylethynyl-2-vinyl-3,4-dihydronaphthalenes or 1-phenylethynyl-2- vinylnaphthalenes are reacted over Pt(PPh3)4, 1-methylene-1H-benz[e]-4,5-dihydroindenes and 1-methylene-1H-benz[e]indenes are formed.

Original languageEnglish
Pages (from-to)669-678
Number of pages10
JournalJournal of Chemical Research
Issue number12
Publication statusPublished - Dec 2008
Externally publishedYes


  • Catalysis
  • Cyclisation
  • Diene-ynes
  • Fulvenes
  • Platinum
  • Ruthenium

ASJC Scopus subject areas

  • General Chemistry


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