Sodium Carbonate → Tetrafluorophthalic anhydride

HRID 259947Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 259947
F[C:2]1(F)[C:10]2[C:5](=[C:6]([F:14])[C:7]([F:13])=[C:8]([F:12])[C:9]=2[F:11])[C:4](=[O:15])[O:3]1.C(=O)([O-])[O-:18].[Na+].[Na+]>>[F:11][C:9]1[C:8]([F:12])=[C:7]([F:13])[C:6]([F:14])=[C:5]2[C:4](=[O:15])[O:3][C:2](=[O:18])[C:10]=12

Komponenten

3

Edukt 2

HCID 10340Sodium CarbonateHCID 11032047Perfluoro-phthalide

Produkt 1

HCID 69545Tetrafluorophthalic anhydrideAusbeute 87,5 %

Versuchsvorschrift

Into a 500 ml glass reactor equipped with a reflux condenser and a stirrer, 100 g (0.413 mol) of the 3,3,4,5,6,7-hexafluoro-1-[3H]-isobenzofuranone separated by distillation from the mixture of Example 2, and 43.8 g (0.413 mol) of sodium carbonate were charged, and the mixture was reacted at 130° C. for 8 hours with vigorous stirring. Then, the reaction mixture was separated by distillation to obtain 79.5 g of tetrafluorophthalic anhydride. The yield was 87.5%.

Aufarbeitung

  1. customInto a 500 ml glass reactor equipped with a reflux condenser and a stirrer
  2. additionwere charged
  3. customthe mixture was reacted at 130° C. for 8 hours with vigorous stirring
  4. customThen, the reaction mixture was separated by distillation

Quellen und Nachweise

ORD-Eintrag
ord-47fdf145a216466fac5009a275513d91
Quelldatensatz
uspto-grants-1996_06
Patentnummer
US05523476

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