C6H5BF3K

Potassium hexafluorobenzeneborate, with the chemical formula C6H5BF3K, is an organoboron compound. It is a salt that contains a hexafluorobenzeneborate anion and a potassium cation. The structure of the hexafluorobenzeneborate anion consists of a benzene ring (C6H5) where the hydrogen atoms are replaced by fluorine atoms, and a boron atom bonded to three fluorine atoms.

This compound is typically encountered as a white crystalline solid. It is soluble in polar organic solvents such as acetonitrile and dimethylformamide. The reactivity of potassium hexafluorobenzeneborate is primarily associated with the boron-fluorine bonds, which are relatively strong. It can act as a source of the hexafluorobenzeneborate anion in various chemical reactions.

Potassium hexafluorobenzeneborate has found applications in organic synthesis, particularly as a reagent in cross-coupling reactions. It can be used to introduce the pentafluorophenyl group into organic molecules. Its stability and ease of handling make it a convenient reagent for these transformations. Research into its properties and applications continues, exploring its potential in areas such as materials science and catalysis.