Metal-free syntheses of<i>N</i>-functionalized and<i>NH</i>-1,2,3-triazoles: an update on recent developments
Tomas Opsomer, Wim Dehaen
Abstract
An overview of the latest developments in the metal-free synthesis of non-benzo-fused N-functionalized and NH-1,2,3-triazoles is provided in this feature article. Synthetic studies that appeared from 2016 until August 2020 are organized according to a wide-ranging classification, comprising oxidative and eliminative azide-dipolarophile cycloadditions, diazo transfer reactions and N-tosylhydrazone-mediated syntheses. The newly developed methods constitute a significant contribution to the field of 1,2,3-triazole synthesis in terms of structural variation via either the exploration of novel reactions, or the exploitation of existing methodologies.
Topics & Concepts
MetalCombinatorial chemistryChemistryNanotechnologyMaterials scienceOrganic chemistryClick Chemistry and ApplicationsChemical Synthesis and AnalysisCyclopropane Reaction Mechanisms