Hexafluoropropylene → 1,2-Oxathietane, 3,4,4-trifluoro-3-(trifluoromethyl)-, 2,2-dioxide
Reaktionsgleichung
[F:1][C:2]([F:9])([F:8])[C:3]([F:7])=[C:4]([F:6])[F:5].[OH:10][S:11](O)(=[O:13])=[O:12].O=S(=O)=O>>[C:3]1([F:7])([C:2]([F:9])([F:8])[F:1])[S:11](=[O:12])(=[O:10])[O:13][C:4]1([F:6])[F:5]Komponenten
3
Reaktionsbedingungen
- Temperatur
- 50 °C
Versuchsvorschrift
Using essentially the procedure of Example 1, the reactor was charged with 44.7 g hexafluoropropene, 45.9 g of 67 wt. % oleum and 41.5 g Fluorinert FC-77™. The reaction mixture was heated at 50° C. for 6 hours. The reactor was vented of excess HFP and the sultone layer (95.0 g) was separated and distilled to provide the HFP sultone (45 g, b.p. 48°-52° C., purity 93% by gc). The yield was 65% based on consumed HFP.