反应详情

The preparation was carried out as in Example 2 but using 250 g of ethylene carbonate, 89 g (1.53 mol) of potassium fluoride and 156.6 g (1.0 mol) of phenyl chloroformate. After addition of the chloroformate, stirring of the reaction mixture was continued at 45°-50° C. for 2 hours. Evaporation under vacuum was carried out as above. By distillation under reduced pressure, 131 g (93.5% yield) of phenyl fluoroformate with a boiling point of 62°-64° at 40 mm Hg were recovered.

1. customEvaporation under vacuum