Methods for producing fluorinated phenylsulfur pentafluorides
A new method for preparing fluorinated phenylsulfur pentafluorides is disclosed. A fluorinated phenylsulfur halotetrafluoride is reacted with SbF n Cl m and SbF 3 to form a fluorinated phenylsulfur pentafluoride.
1. A method for preparing a fluorinated phenylsulfur pentafluoride having a formula (VI) as follows:
the method comprising: reacting a fluorinated phenylsulfur halotetrafluoride having a formula (VII) with SbF n Cl m and SbF 3 in which the molar ratio of SbF n Cl m and SbF 3 is 1:100˜5:1
wherein at least two of R a , R b , R c , R d , and R e are a fluorine atom and the remainder are hydrogen atoms; wherein X is a chlorine atom, a bromine atom, or an iodine atom; and wherein n+m=5.
2. The method of claim 1 wherein the molar ratio of SbF n Cl m and SbF 3 is approximately 1:50˜2:1.
3. The method of claim 1 wherein SbF n Cl m is selected from a group consisting of SbF 5 , SbCl 5 , SbFCl 4 , SbF 2 Cl 3 , SbF 3 Cl 2 , and SbF 4 Cl.
4. The method of claim 1 wherein SbF n Cl m is SbCl 5 or SbF 5 .
5. The method of claim 1 wherein the reaction is conducted in a solvent.
6. The method of claim 5 wherein the solvent is a halocarbon.
7. The method of claim 1 wherein X is a chlorine atom.
8. A polyfluorinated phenylsulfur pentafluoride having a formula (VI') as follows:
wherein R a′ , R b′ and R e′ are a fluorine atom, R c′ or R d′ are a fluorine atom, and the remainder is a hydrogen atom.
9. The polyfluorinated phenylsulfur pentafluoride of claim 8 is 2,3,4,6-tetrafluorophenylsulfur pentafluoride.
10. A polyfluorinated phenylsulfur chlorotetrafluoride having a formula (VII') as follows:
wherein four of R a′ , R b′ , R d′ and R e′ are a fluorine atom and the remainder is a hydrogen atom.
11. The polyfluorinated phenylsulfur chlorotetrafluoride of claim 10 is 2,3,4,6-tetrafluorophenylsulfur chlorotetrafluoride or 2,3,5,6-tetrafluorophenylsulfur chlorotetrafluoride.
12. The polyfluorinated phenylsulfur chlorotetrafluoride of claim 10 is 2,3,4,6-tetrafluorophenylsulfur chlorotetrafluoride.
13. The method of claim 1 , wherein the molar ratio of SbF n Cl m and SbF 3 is approximately 1:100˜1:1.05.