Sequential catalytic reactions for the synthesis of benzofulvenes using an iridium complex with dual function

Kyoji Tsuchikama, Mitsugu Kasagawa, Kohei Endo, Takanori Shibata

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

The cationic iridium complex ([Ir(cod)2]OTf + racBINAP) efficiently catalyzed a sequential process of ortho-C-H bond functionalization, cyclization and dehydration, leading to a concise preparation of 1 -methylene indene (benzofulvene) derivatives. The iridium complex operated as a catalyst in the ortho-C-H bond alkenylation of aryl ketones with alkynes and as a Lewis acid catalyst in the cyclization of the alkenylated product and the subsequent dehydration.

Original languageEnglish
Pages (from-to)97-100
Number of pages4
JournalSynlett
Issue number1
DOIs
Publication statusPublished - 2010 May 6

Keywords

  • C-H bond functionalization
  • Catalysis
  • Cyclization
  • Indenes
  • Iridium

ASJC Scopus subject areas

  • Organic Chemistry

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