Acyl Donor Intermediates in N-Heterocyclic Carbene Catalysis: Acyl Azolium or Azolium Enolate?

Animesh Biswas1, Jörg-M Neudörfl1, Nils E Schlörer1

  • 1Department of Chemistry (Organic Chemistry), University of Cologne, Greinstraße 4, 50939, Cologne, Germany.

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