反应详情

Dissolve benzoxazolinone (0.024 mol) in dimethylformamide and add potassium carbonate (0.047 mol). Heat at reflux for 20 minutes and then add the compound obtained in Step A (0.021 mol). Stir magnetically at reflux for 80 minutes. Hydrolyse the reaction mixture in 150 ml of water, suction-filter off the resulting precipitate and recrystallise it from a 5/5 cyclohexane/toluene mixture.

1. temperatureHeat
2. temperatureat reflux for 20 minutes
3. temperatureat reflux for 80 minutes
4. filtrationHydrolyse the reaction mixture in 150 ml of water, suction-filter off the resulting precipitate
5. customrecrystallise it from a 5/5 cyclohexane/toluene mixture