Fig. 4: The reaction scope of various acceptors of phosphoric acids.
From: Stereoselective gold(I)-catalyzed approach to the synthesis of complex α-glycosyl phosphosaccharides

aCondition: 0 °C, 30 min then 60 °C, 2 h. bCondition: 0 °C, 30 min, then 20 °C, 2 h. cCondition: 0 °C, 30 min then 60 °C, 3 h. dYields of α/β mixtures (α/β mixtures not separable), and ratios were determined by 31P NMR. TBS: tert-butyldimethylsilyl. Bn: benzyl. Bz: benzoyl. Tf: trifluoromethanesulfonyl. Fmoc: 9-fluorenylmethyloxycarbonyl. In red are the formed glycosidic bonds. In blue are the acceptors of phosphoric acid and the phosphate moieties in the products.