Evidence for Direct Transmetalation of Au^III–F with Boronic Acids

The underlying reactivity of Au^III–F species with aryl boronic acids has been studied in detail taking advantage of four novel, stable difluoro-[(C^N)­AuF₂], arylmonofluoro-[(C^N)­AuArF], and alkylmonofluoro-[(C^N)­AuAlkF] gold­(III) complexes, prepared and isolated in monomeric form. We provide the first experimental evidence for a direct Au^III–F/B transmetalation preceding the Csp²–Csp² or Csp³–Csp² bond formation