Copper-catalyzed C-H cyanation of terminal alkynes with cyanogen iodide

Kazuhiro Okamoto, Masahito Watanabe, Naoki Sakata, Masahito Murai, Kouichi Ohe

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


A copper-catalyzed reaction of terminal alkynes with cyanogen iodide (ICN) that produces alkynyl cyanides has been developed. The use of tetramethylpiperidine as a sterically congested base was successful in this reaction. Some control experiments revealed that the reaction involves the noncatalyzed formation of alkynyl iodides followed by copper-catalyzed cyanation of the iodides without the formation of copper(I) acetylide. This observation contrasts with what is normally observed in various copper-mediated reactions using terminal alkynes.

Original languageEnglish
Pages (from-to)5810-5813
Number of pages4
JournalOrganic Letters
Issue number22
Publication statusPublished - Nov 15 2013
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry


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