反应详情

To a solution of 0.25 g (0.49 mmol) of trimethylsilylethyl 4-[(5,6,7,8-tetrahydro-5-hydroxy-8,8-dimethyl-5-carboethoxy-methylnaphth-2-yl)ethynyl]benzoate (Compound 117) in 5 ml of dry THF (flushed with argon) was added 1.48 ml (1.5 mmol) of tetrabutyl ammonium fluoride (1M solution in THF). The reaction mixture was stirred at room temperature for 12 hours, concentrated in vacuo to an oil and slowly diluted with water. The solution was acidified to pH 4 with 10% HCl and extracted with Et2O . The organic layer was dried over Na2SO4, concentrated in vacuo to an oil and purified by flash chromatography (silica, 90% EtOAc-hexane) to give the title compound as a white solid.

1. concentrationconcentrated in vacuo to an oil
2. additionslowly diluted with water
3. extractionextracted with Et2O
4. dry with materialThe organic layer was dried over Na2SO4
5. concentrationconcentrated in vacuo to an oil
6. custompurified by flash chromatography (silica, 90% EtOAc-hexane)