反应详情

温度

0 °C

To a solution of benzyl alcohol (55.5 mg, 0.513 mmol) in tetrahydrofuran (5 mL) at 0° C. was added potassium tert-butoxide (57.6 mg, 0.513 mmol) and the mixture was stirred at 0° C. for 2 hours. The mixture was cooled to −78° C. and a solution of 2-bromo-3-chloro-6-fluoropyridine (120 mg, 0.570 mmol) in 2 mL tetrahydrofuran was added. After stirring at −78° C. for 1 hour the mixture was diluted with ethyl acetate and water. The organic layer was separated, washed with water and brine, dried over sodium sulfate and concentrated. Purification by column chromatography (silica gel, 20% ethyl acetate in hexane) afforded the title compound. LCMS: 299.9 (M+3)+.

1. temperatureThe mixture was cooled to −78° C.
2. stirringAfter stirring at −78° C. for 1 hour the mixture
3. customThe organic layer was separated
4. washwashed with water and brine
5. dry with materialdried over sodium sulfate
6. concentrationconcentrated
7. customPurification by column chromatography (silica gel, 20% ethyl acetate in hexane)