Cobalt-catalyzed regioselective [3+2] annulation of ortho-formyl and acetyl substituted phenylboronic acids with alkynes

Mitsuhiro Ueda*, Tamami Ueno, Yuki Suyama, Ilhyong Ryu

*Corresponding author for this work

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Treatment of alkynes with ortho-formyl and acetyl phenylboronic acids in the presence of a cobalt catalyst resulted in the formation of 2,3-disubstituted indenols in good yields. When aryl silyl alkynes were used, 2-aryl-3-silyl indenols were obtained regioselectively in good yields.

Original languageEnglish
Pages (from-to)2972-2974
Number of pages3
JournalTetrahedron Letters
Volume58
Issue number30
DOIs
StatePublished - 1 Jan 2017

Keywords

  • 2,3-Disubstituted indenol
  • Cobalt
  • ortho-Carbonylated phenylboronic acid
  • Silyl aryl alkyne
  • [3+2] annulation

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