反应详情

80 g (0.18 mol) of p-n-tetradecyloxy-ω-(p-nitrophenyl)acetophenone prepared as described above was dissolved in 400 cc of chloroform and to the solution 28 g (0.18 mol) of bromine dissolved in 50 cc of chloroform was gradually added dropwise while refluxing with heating. The mixture was washed with water and dried with anhydrous sodium sulfate. Chloroform was distilled off under reduced pressure and 91 g of p-n-tetradecyloxy-ω-bromo-ω-(p-nitrophenyl)acetophenone was obtained after recrystallization from n-hexane. Yield: 95%, Melting Point: 55° to 56° C.

1. additionwas gradually added dropwise
2. temperaturewhile refluxing
3. temperaturewith heating
4. washThe mixture was washed with water
5. dry with materialdried with anhydrous sodium sulfate
6. distillationChloroform was distilled off under reduced pressure