反应详情

ADDP (1,23 g, 4,89 mmole) and triphenylphosphine (1,03 g, 3,92 mmole) were added to a solution of 2-[4-(methoxymethyl)phenyl]ethanol (0,54 g, 3,26 mmole) and methyl 2-(4-hydroxybenzyl)butanoate (0,68 g, 3,26 mmole) in dry dichloromethane (10 ml) under argon. After 5 minutes, more dichloromethane (10 ml) was added. The reaction mixture was stirred at room temperature for 5.5 hours and then filtered. Purification by chromatography on silica gel using heptan:ethyl acetate (1:1) as eluent gave a mixture of product and starting material wich was dissolved in ethyl acetate and washed 3 times with 1 N sodium hydroxide. The organic phase was washed with brine, dried (sodium sulphate), filtered and solvent was evaporated to give 0,27 g (yield 60%) of the desired product.

1. filtrationfiltered
2. customPurification by chromatography on silica gel
3. customgave
4. additiona mixture of product
5. washwashed 3 times with 1 N sodium hydroxide
6. washThe organic phase was washed with brine
7. dry with materialdried (sodium sulphate)
8. filtrationfiltered
9. customsolvent was evaporated