HRID1073461
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
PROCEDURE
实验过程
To a stirred solution of 2.40 g of 2-deoxy-2,2-difluoro-4,5,7-tris-O-(phenylmethyl)-D-arabino-3-heptulofuranosonic acid, ethyl ester in 8.8 ml of acetic anhydride at 0° C. was added 1.08 ml of boron trifluoride etherate. After 2 hours at 0° C., the solution was diluted with ether and stirred with aqueous sodium bicarbonate solution. The organic layer was washed with water and brine, dried, and concentrated. The residue was subjected to column chromatography on silica gel to give an oil, CMR δ 20.7 and 215 (singlets, CH3CO).
WORKUP
后处理
- washThe organic layer was washed with water and brine
- customdried
- concentrationconcentrated
- customto give an oil, CMR δ 20.7 and 215 (singlets, CH3CO)