반응 #347125

반응 방정식

3,4,5,6-tetrafluorophthaloyldifluoride

3,3,4,5,6,7-hexafluoro-1-[3H]-isobenzofuranone

sodium carbonate

→

tetrafluorophthalic anhydride

수율 91.5%

용매

xylene

반응 조건

후처리

1. 1
   기타Into a 500 ml glass reactor equipped with a reflux condenser and a stirrer
2. 2
   기타the mixture was reacted at 130° C. for 3 hours with vigorous stirring
3. 3
   기타Then, the inorganic substance was removed by filtration
4. 4
   workup.DISTILLATIONthe residue was subjected to distillation

실험 절차

Into a 500 ml glass reactor equipped with a reflux condenser and a stirrer, 100 g (0.413 mol) of the mixture (1:1) of the 3,4,5,6-tetrafluorophthaloyldifluoride and the 3,3,4,5,6,7-hexafluoro-1-[3H]-isobenzofuranone of Example 2, 43.8 g (0.413 mol) of sodium carbonate and 200 g of xylene were charged, and the mixture was reacted at 130° C. for 3 hours with vigorous stirring. Then, the inorganic substance was removed by filtration, and the residue was subjected to distillation to obtain 83.1 g of tetrafluorophthalic anhydride. The yield was 91.5%.

출처