When attempting to extend the Zn(OTf)2-catalyzed hydrazination of propargylic amides (en route to Fischer indoles) to alkanoic propargylamides, it was discovered that after the initial hydrazination event, the respective N-anilinoimidazoles are obtained. The use of stoichiometric ZnCl2 as the promoter still gave the Fischer indole product. The unexpected reaction outcome was attributed to the overly high electrophilicity of the alkanoic carboxamide carbon atom.

Original languageEnglish
Article number151365
Number of pages4
JournalTetrahedron Letters
Volume61
Issue number1
DOIs
StatePublished - 2 Jan 2020

    Scopus subject areas

  • Drug Discovery
  • Biochemistry
  • Organic Chemistry

    Research areas

  • Alkanoic propargylamides, Hydrazination, N-Anilinoimidazole, Zinc triflate catalyst, IMIDAZOLES, EFFICIENT

ID: 49497742