Dialkylation of indoles with trichloroacetimidates to access 3,3-disubstituted indolenines

Tamie Suzuki, Nilamber A. Mate, Arijit A. Adhikari, John D. Chisholm

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


2-Substituted indoles may be directly transformed to 3,3-dialkyl indolenines with trichloroacetimidate electrophiles and the Lewis acid TMSOTf. These reactions provide rapid access to complex indolenines which are present in a variety of complex natural products and medicinally relevant small molecule structures. This method provides an alternative to the use of transition metal catalysis. The indolenines are readily transformed into spiroindoline systems which are privileged scaffolds in medicinal chemistry.

Original languageEnglish (US)
Article number4143
Issue number22
StatePublished - 2019


  • Dialkylation
  • Indole
  • Indolenine
  • Spiroindoline
  • Trichloroacetimidate

ASJC Scopus subject areas

  • Analytical Chemistry
  • Chemistry (miscellaneous)
  • Molecular Medicine
  • Pharmaceutical Science
  • Drug Discovery
  • Physical and Theoretical Chemistry
  • Organic Chemistry


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