A single-step acid catalyzed reaction for rapid assembly of NH-1,2,3-triazoles

Abstract

NH-1,2,3-Triazole moieties are a part of the design of various biologically active compounds, pharmaceutical agents and functional materials. Unfortunately, the applications of this heterocycle are still underexplored due to the lack of a general synthetic protocol. Here we outline a novel, general and facile metal-free pathway that enables the direct synthesis of these heterocycles by combining readily accessible and abundant precursors such as enolizable ketones and NH₄OAc with high levels of regioselectivity via an organocascade process. The developed chemistry has been successfully applied to the synthesis of several structurally diverse products, pharmaceutical agents and supramolecular receptors.