4-O-Acetyl-3-O-tert-butyldimethylsilyl-l-rhamnal: a building block in the stereoselective synthesis of 2-deoxy-α-l-rhamnopyranosides

The stereoselective synthesis of 2-deoxy-α-l-glycosides by addition of various acceptors to 4-O-acetyl-3-O-tert-butyldimethylsilyl-l-rhamnal promoted by triphenylphosphine–hydrogen bromide is developed.

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