Do reactions of 2,2,4,4-tetrakis(trifluoromethyl)-1,3-dithietane require fluoride anion catalysis?

- The reaction of hexafluorothioacetone dimer does not require MF catalyst.
- It can be carried out in DMSO or DMF solvent at 20-70 °C.
- These reactions are as efficient as catalyzed processes.