反应详情

65.5 g of ethyl 3-(2-bromophenyl)-2-methylpropionate (243 mmole) and 20.5 g of potassium hydroxide (364 mmole) were dissolved in 250 ml of ethanol and heated under reflux for 6 hours, and 500 ml of water was added. After 50 ml of concentrated hydrochloric acid was added, and the product was then extracted with toluene, dried and concentrated to give 37.8 g of 3-(2-bromophenyl)-2-methylpropionic acid as a yellow oil (yield, 89%).

1. temperatureheated
2. temperatureunder reflux for 6 hours
3. extractionthe product was then extracted with toluene
4. customdried
5. concentrationconcentrated
6. customto give