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Abstract Facile synthetic routes to bromo- and iodo-1,2,3-triazoles were achieved. Diiodo-1,2,3-triazole was directly obtained from 1,2,3-triazole, and dihalo-1,2,3-triazoles were converted to halo-1,2,3-triazoles in good yields without protection by NH. Unsymmetrical… Click to show full abstract
Abstract Facile synthetic routes to bromo- and iodo-1,2,3-triazoles were achieved. Diiodo-1,2,3-triazole was directly obtained from 1,2,3-triazole, and dihalo-1,2,3-triazoles were converted to halo-1,2,3-triazoles in good yields without protection by NH. Unsymmetrical 4-bromo-5-iodo-1,2,3-triazole was synthesized from bromo-1,2,3-triazole. These halo-1,2,3-triazoles can be readily prepared using common reagents and solvents and are useful building blocks for the analogous synthesis of 1,2,3-triazole derivatives.
Journal Title: Tetrahedron Letters
Year Published: 2017
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