Sodium Chloride → HCID 44158860, compound

Participants

Reaction Steps

The solution of ((2S,4R)-4,6-dihydroxytetrahydro-2H-pyran-2-yl)methyl acetate (IV) (1 eq) in water was cooled down to 0° C. Barium carbonate (1.4 eq) was added followed by a dropwise addition of Br2 (1.2 eq) and the reaction was stirred overnight at room temperature. The solution was saturated with NaCl and extracted four times with EtOAc. The combined organic phases were dried over MgSO4 and concentrated. The purification using flash chromatography (hexane/acetone=75/25 to 55/45) furnished ((2S,4R)-4-hydroxy-6-oxotetrahydro-2H-pyran-2-yl)methyl acetate (V).

Provenance & Evidence