Cyclodimerization of alkynes with phosphine-free ruthenium carbene complexes: Carbene consumption by a shunted alkyne oligomerization

Steven T. Diver, Amol A. Kulkarni, Daniel A. Clark, Brian P. Peppers

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

A new cyclodimerization of ruthenium carbenes and alkynes is reported. The cyclodimerization produces substituted cyclopentadienes and consumes the carbene complex. Cyclodimerization of alkynes is predominant at low alkene concentrations and was found to be competitive with enyne metathesis. The presence of the ortho alkyl ether in the ruthenium carbene complex appears to be a critical determinant for the formation of cyclopentadienes. At higher alkene concentration, the observed cyclodimerization can be suppressed, favoring enyne metathesis.

Original languageEnglish (US)
Pages (from-to)5832-5833
Number of pages2
JournalJournal of the American Chemical Society
Volume129
Issue number18
DOIs
StatePublished - May 9 2007

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Fingerprint Dive into the research topics of 'Cyclodimerization of alkynes with phosphine-free ruthenium carbene complexes: Carbene consumption by a shunted alkyne oligomerization'. Together they form a unique fingerprint.

  • Cite this