Ir and Rh complex-catalyzed intramolecular alkyne-alkyne couplings with carbon monoxide and isocyanides

Takanori Shibata, Koji Yamashita, Emi Katayama, Kentaro Takagi

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Intramolecular [2+2+1] cycloaddition of diynes with carbon monoxide was catalyzed by Vaska's complex (IrCl(CO)(PPh3)2) or IrCl(cod)(dppp), and cyclopentadienones were obtained in good to high yields. The first catalytic synthesis of iminocyclopentadienes was achieved by portionwise additions of isocyanides to a solution of diynes and Rh catalyst ([RhCl(cod)]2).

Original languageEnglish
Pages (from-to)8661-8667
Number of pages7
JournalTetrahedron
Volume58
Issue number43
DOIs
Publication statusPublished - 2002 Oct 21

Keywords

  • Alkynes
  • Carbonylations
  • Coupling reactions
  • Diynes
  • Iridium
  • Rhodium

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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