4-Trimethylsilyl-5-iodo-1,2,3-triazole: A Key Precursor for the Divergent Syntheses of 1,5-Disubstituted 1,2,3-Triazoles
2015
Bifunctional 4-trimethylsilyl-5-iodo-1,2,3-triazoles (TMSIT) were reported in this paper, which could be efficiently synthesized directly from readily accessible TMS-alkyne, azide, and copper(I) iodide at room temperature. Using TMSIT as key precursors, a divergent protocol for the preparation of 1,5-disubstituted 1,2,3-triazoles was developed via sequential copper/palladium-catalyzed coupling reactions and desilylation in one pot.
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