反应详情

温度

-50 °C

4-bromobutyric acid (10.6 g, 60 mmole) was dissolved in thionyl chloride (20 mml), and the reaction was kept for 4 hr. The solution was evaporated and coevaporated. with toluene several times. The residue was redissolved in dichloromethane (120 ml), and then benzyl alcohol (4.14 ml, 40 mmole) was added. The solution was cooled down to −50° C. and triethylamine (10 ml, 72 mmole) was added. The reaction mixture was slowly warmed to room temperature. After 3 hr, the reaction mixture was poured into sodium bicarbonate aqueous solution and the organic phase was washed with water and dried, giving the titled product, 6.8 g.

1. customThe solution was evaporated
2. dissolutionThe residue was redissolved in dichloromethane (120 ml)
3. temperatureThe reaction mixture was slowly warmed to room temperature
4. waitAfter 3 hr
5. washthe organic phase was washed with water
6. customdried