How is 1,1,2,2-Tetrafluoro-1-(2,2,2-trifluoroethoxy)ethane (CAS: 406-78-0) typically synthesized?

1,1,2,2-Tetrafluoro-1-(2,2,2-trifluoroethoxy)ethane (CAS: 406-78-0) is synthesized via a multistep process involving fluorination reactions. Commonly, a trifluoroethanol derivative is reacted with a fluorinating agent such as N,N-dimethylformamidine or sodium bis(trimethylsilyl)amide. The reaction typically requires a catalyst and is conducted in an anhydrous solvent. The yield and selectivity can be influenced by the choice of solvent and reaction conditions.