反应详情

tert-Butyl lithium (a 1.7 M solution in pentane; 0.29 ml, 0.49 mmol) was added dropwise to a solution of 4-(1-hydroxytridecyl)-2-trimethylsilylfuran (138.2 mg, 0.41 mmol) in tetrahydrofuran (7 ml) at -78 degrees under argon. After 5 minutes, a solution of phenylacetyl chloride (65 microliter, 0.49 mmol) in tetrahydrofuran (1/2ml) was added. Stirring was continued at room temperature for 16 hours and quenched with water. Extraction (ethyl ether) and evaporation of the dried (magnesium sulphate) extracts gave an oil, which was purified by preparative TLC (20×20 cm, 500 micron silica plate; developed with 10% ethyl ether/hexane). The title ester was obtained as a pale yellow oil.

1. waitwas continued at room temperature for 16 hours
2. customquenched with water
3. extractionExtraction (ethyl ether) and evaporation of the
4. dry with materialdried (magnesium sulphate)
5. customextracts gave an oil, which
6. customwas purified by preparative TLC (20×20 cm, 500 micron silica plate; developed with 10% ethyl ether/hexane)