反应详情

温度

0 °C

800 mg of 2-[4-(biphenyl-4-ylmethoxy)phenoxy]ethanol are introduced into 25 ml of dichloromethane under argon, 1.16 g of tetrabromomethane are added, and the mixture is stirred at room temperture for 10 minutes. The mixture is cooled to 0° C. and, after addition of 1.83 g of triphenylphosphine, stirred at 0° C. for one hour and at room temperature for 2 hours. It is concentrated, and the residue is taken up in a little dichloromethane and filtered through silica gel. 480 mg of product are obtained.

1. stirringstirred at 0° C. for one hour and at room temperature for 2 hours
2. concentrationIt is concentrated
3. filtrationfiltered through silica gel