反应详情

To a stirred solution of 1.83 g of 2-deoxy-2,2-difluoro-4,5-bis-O-(phenylmethyl)-D-arabino-3-heptulofuranosonic acid, ethyl ester diacetate in 5.1 ml of ethanol was added 3.4 ml of 1.5M sodium ethoxide in ethanol at 25° C. After 1.5 hours, the mixture was treated with 0.61 ml of glacial acetic acid and partitioned with ether and water. The organic layer was washed with water, sodium bicarbonate solution, and brine, dried and concentrated. The residue was subjected to column chromatography on silica gel to give an oil; CMR δ 100.1 (triplet, J=29.6 Hz, anomeric carbon)

1. custompartitioned with ether and water
2. washThe organic layer was washed with water, sodium bicarbonate solution, and brine
3. customdried
4. concentrationconcentrated
5. customto give an oil