3,4-Di-O-acetyl-L-fucal

3,4-Di-O-acetyl-L-fucal is a glycal precursor that has been used in the palladium-catalyzed stereoselective synthesis of glycosides.{56038} It has also been used as a precursor in the copper-catalyzed stereoselective synthesis of 2-deoxyglycosides.{56039}