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Fluorination of organic compounds with anhydrous hydrogen fluoride. Part II. An investigation of antimony pentachloride catalysed fluorinations

✍ Scribed by Whalley, W. B.

Publisher
Wiley (John Wiley & Sons)
Year
1947
Weight
408 KB
Volume
66
Category
Article
ISSN
0368-4075

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✦ Synopsis

difluoro-x : z-dichloroethane (675 9.) and hydrogen fluoride (120 g.), to the spent fluorinating agent.

Methy&umofm.-Methylchlorofom (800 g.) antimony pentachloride (300 g.) and hydrogen fluoride (460 g.) were heated to a temperature of 30-40" during about 45 minutes, while the pressure was adjusted to 550 lb./sq. in. The yield of methylfluoroform b.p. -47"/~60 mm. was 87%. HenneO records a boiling point of -46.7 1760 mm.

The author wishes to thank the Directors of Imperial Chemi-d Industries Limited (General Chemicals Division), for permission . to publish these results and Mr. 3. H. Brown for helpful advice and discussion during the work.

Imperial Chemical Industries Limited,

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## Abstract The method of fluorination using antimony pentachloride and anhydrous hydrogen fluoride^1^ has, by a simple modification, been extended to allow the almost quantitative conversion of the ‐C,Cl~3~ radical to ‐CF~3~, in chloroform, carbon tetrachloride, as‐tetrachloroethane, and methyl ch