Improved Synthesis of Sodium and Potassium Salts of Tetrakis (Pentafluorophenyl)Borates
Emily A. Murray‐Nobbs, Jarrod R. Thomas, Cameron M. Gould, John M. Cusick, Scott A. SulwayABSTRACT
The safe and robust synthesis of sodium and potassium salts of the [B(C 6 F 5 ) 4 ] − anion (Na[BArF 20 ], 1‐Na and K[BArF 20 ], 1‐K ) via an improved method is reported. The implementation of the improved synthetic route to other tetraarylborate salts is carried out, which includes the synthesis of Na[B({CF 3 }C 6 H 4 ) 4 ] (Na[BArF 12 ], 2 ) and Na[B({ t Bu}C 6 H 4 ) 4 ] (Na[BAr t Bu 4 ], 3 ). The solid‐state structure of the THF‐solvated adduct of 2 is reported. 1‐Na , 1‐K , 2 and 3 are fully characterized by 1 H, 11 B, and 19 F NMR spectroscopy.