反应详情

温度

60 °C

268 g of 2,3,5,6-tetrafluorobenzotrichloride were placed in a 0.5 1 four necked flask. After addition of 5.4 g of iron(III) chloride, the mixture was heated to 60° C. with stirring. 46 g of formic acid were metered in over 6 hours at 60°-65° C. Vigorous gas development (carbon monoxide, hydrogen chloride) began immediately. The gas stream was fed to an absorption tower via a cooler. After addition was complete, the mixture was further stirred for two more hours at 60° C. The product was then distilled under reduced pressure.

1. customwere metered in over 6 hours at 60°-65° C
2. additionAfter addition
3. stirringthe mixture was further stirred for two more hours at 60° C
4. distillationThe product was then distilled under reduced pressure