Fluorosulfuric acid → Difluoromalonyl fluoride

HRID 1447471

Reaktionsgleichung

Reaktionsgleichung von HRID 1447471
[F:1][C:2]([F:10])([C:7]([F:9])=[O:8])[C:3](OC)=[O:4].[F:11]S(O)(=O)=O>>[F:10][C:2]([F:1])([C:3]([F:11])=[O:4])[C:7]([F:9])=[O:8]

Komponenten

3

Edukt 2

HCID 24603Fluorosulfuric acidHCID 93396Methyl 2,2,3-trifluoro-3-oxopropanoate

Produkt 1

HCID 2774099Difluoromalonyl fluorideAusbeute 66 %

Versuchsvorschrift

A mixture of 84 g (0.54 mol) of methyl difluorofluoroformylacetate, 104 g (1.0 mol) of fluorosulfonic acid and 9 g (0.038 mol) of HSbF6 was heated at 100° to 115° for 20 h. Then, 25.6 g of volatile product, collected through a condenser in a -80° trap, and boiling in the range of -25° to +10°, was identified by IR as difluoromalonyl fluoride (66% yield) based on the stoichiometry 2 FOCCF2CO2CH3 :CF2 (COF)2. Dimethyl difluoromalonate was also formed.

Aufarbeitung

  1. temperaturewas heated at 100° to 115° for 20 h
  2. customThen, 25.6 g of volatile product, collected through a condenser in a -80° trap
  3. customboiling in the range of -25° to +10°

Quellen und Nachweise

ORD-Eintrag
ord-df175e990a3e46a0aac702a46a1a72a1
Quelldatensatz
uspto-grants-1982_02
Patentnummer
US04316986

Verknüpfte Notizen

Wird geladen…