Swart's reagent

Quote:

Antimony trifluoride is the inorganic compound with the formula SbF3. Sometimes called Swart's reagent.It is used as a fluorination reagent in organic chemistry. This application was reported by the Belgium chemist Frédéric Jean Edmond Swarts in 1892,who demonstrated its usefulness for converting chloride compounds to fluorides. The method involved treatment with antimony trifluoride with chlorine or with antimony pentachloride to give the active species antimony trifluorodichloride (SbCl2F3) The Swarts reaction is generally applied to the synthesis of organofluorine compounds Antimony trifluoride Wiki

Swart's reagent is much more expensive than TFA.

I have worked a few times with SbF3, we made trifluormethylthio and difluorocyano aromatic compounds with it, but the yields were usually not so high. And because of the high temperature large percent of the product pyrolyzed....

Also important to note that if you do a Swarts reaction if a flask, you will never ever use that glass for anything else