Synthesis and reactivity of a mono-sigma-aryl palladium(IV) fluoride complex.

This communication describes the rational design and synthesis of the remarkably stable Pd(IV) monoaryl fluoride complex (t-Bu-bpy)Pd(IV)(p-FC(6)H(4))(F)(2)(FHF) (t-Bu-bpy = 4,4'-di-tert-butyl-2,2'-bipyridine). This and related complexes undergo Ar-F bond formation in the presence of "F(+)" sources. This work serves as a foundation for the development of Pd(II/IV)-catalyzed coupling reactions to form aryl fluorides.