Reaction of monovalent gold complex salts with ferrocene thio derivatives

1. The reaction of 1,2,3-trithia[3]ferrocenophane with triphenylphosphinegold tetrafluoroborate leads to tris(triphenylphosphinegold)sulfonium tetrafluoroborate. 2. Relative to the auration of ethyl cyanoacetate, the aurating capacity of the tris-(triphenylphosphinegold)sulfonium tetrafluoroborate is significantly lower than that of (Ph3PAu)3O]+BF4− and [(Ph3PAu)4N]+BF4−. 3. The reaction of ferrocenylene-1,1′-dithiol with tris(triphenylphosphinegold)oxonium tetrafluoroborate gives (Ph3PAuSC5H4FeC5H4S)2.