Activation of SF6 at Platinum Complexes: Formation of SF3 Derivatives and Their Application in Deoxyfluorination Reactions

The activation of SF6 at [Pt(PR3)(2)] R = Cy, iPr complexes in the presence of PR3 led selectively and in an unprecedented reaction route to the generation of the SF3 complexes trans-[Pt(F)(SF3)(PR3)(2)]. These can also be synthesized from SF4 and the SF2 derivative trans-[Pt(F)(SF2)-(PCy3)(2)][BF4] was characterized by X-ray crystallography. trans-[Pt(F)(SF3)(PR3)(2)] complexes are useful tools for deoxyfluorination reactions and novel fluorido complexes bearing a SOF ligand are formed. Based on these studies a process for the deoxyfluorination of ketones was developed with SF6 as fluorinating agent.