The iridium-catalyzed azide–thioalkyne cycloaddition was found to proceed much faster with benzyl azide than with phenyl azide. The high azido-type selectivity was also observed in other combinations of azides with different steric environments. This finding enabled the efficient assembly of three azidophilic molecules to triazido platforms by three sequential triazole-forming reactions.
K. Sugiyama, Y. Sakata, T. Niwa, S. Yoshida and T. Hosoya, Chem. Commun., 2022, 58, 6235 DOI: 10.1039/D2CC01739C
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