Cyclization of 5-alkynones with chromium alkylidene equivalents generated: In situ from gem -dichromiomethanes

Masahito Murai, Ryuji Taniguchi, Takashi Kurogi, Moritani Shunsuke, Kazuhiko Takai

Research output: Contribution to journalArticlepeer-review

Abstract

A rare example of cyclization with 5-alkynones, which possess non-polar alkynyl and less electrophilic polar keto carbonyl groups, was demonstrated. The key to promoting carbene/alkyne metathesis followed by alkylidenation with pendant CO double bonds was the Schrock-type nucleophilic reactivity of the generated chromium carbene equivalents from readily available diiodomethanes and CrCl2 by simple heating.

Original languageEnglish
Pages (from-to)9711-9714
Number of pages4
JournalChemical Communications
Volume56
Issue number67
DOIs
Publication statusPublished - Aug 28 2020

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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