反应详情

A mixture of 3-methyl-9H-xanthen-9-one (1.62 g, 7.71 mmol), N-bromosuccinic acid imide (1.37 g, 7.71 mmol), benzoyl peroxide (93 mg, 0.39 mmol) and carbon tetrachloride (15 ml) was heated under reflux for 15 hours. The insoluble matter was removed by filtration and the resulting filtrate was concentrated under a reduced pressure to give 3-bromomethyl-9H-xanthen-9-one (2.19 g, 7.57 mmol, 98%) as colorless crystals.

1. temperaturewas heated
2. temperatureunder reflux for 15 hours
3. customThe insoluble matter was removed by filtration
4. concentrationthe resulting filtrate was concentrated under a reduced pressure