反应详情

温度

70 °C

A suspension of potassium tert-butoxide (0.54 g) in anhydrous tetrahydrofuran (200 mL) at 0° C. was treated with a mixture of tert-butanol (0.1 mL) and 4-methyl-3-oxopentanoic acid ethyl ester (0.65 mL). After stirring at room temperature for 45 minutes a solution of 1-bromomethyl-4-methanesulfonylbenzene (1.0 g) in tetrahydrofuran (50 mL) was added and the resulting mixture heated at 70° C. for 24 hours. The mixture was cooled to room temperature, diluted with water and the tetrahydrofuran removed under reduced pressure. The residue was extracted with ethyl acetate and the combined extracts dried over magnesium sulfate and then the solvent removed under reduced pressure to afford title compound, 1.4 g.

1. additionwas added
2. temperatureThe mixture was cooled to room temperature
3. customthe tetrahydrofuran removed under reduced pressure
4. extractionThe residue was extracted with ethyl acetate
5. dry with materialthe combined extracts dried over magnesium sulfate
6. customthe solvent removed under reduced pressure