Abstract
Silyl groups are widely used as alcohol protecting groups and their study has provided insight on some very remarkable structure and reactivity features within carbohydrate chemistry. However, not much work has been put into the effect on the reactivity of silyl groups directly attached to the sugar carbon chain. In this work, we have developed a synthetic methodology to obtain both d‐glucosyl and l‐idosyl donors containing a dimethylphenylsilyl group directly attached to C6. Glycosylation and competition experiments with different glycosyl acceptors have shown that this group is completely stable under glycosylation conditions and enhances reactivity beyond what a benzyl group attached to the sugar oxygen would do. Finally, we found adequate conditions for the protodesilylation of Si‐containing glycosides to yield the 6‐deoxy sugar analog.
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