A new glycosylation protocol employing ortho-(methyltosylaminoethynyl)benzyl glycosides as glycosyl donors and TMSOTf as the catalyst is disclosed. These donors can be readily prepared from the corresponding ‘latent’ ortho-iodobenzyl glycosides via a Sonogashira coupling, thus providing a new approach for the ‘latent-active’ synthesis of glycans.
X. Chen, D. Shen, Q. Wang, Y. Yang and B. Yu, Chem. Commun., 2015, 51, 13957 DOI: 10.1039/C5CC05651A
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