Oxidation of ketones by ceric perchlorate catalysed by iridium(III)

IrCl3, a sluggish catalyst in alkaline media, surpasses catalytic efficiency of osmium and ruthenium in aqueous perchloric acid medium in the oxidation of aliphatic ketones by ceric perchlorate. Following rate law explains all findings−d[Ce(IV)]dt=2kK1K2[CeIV][S][IrIII][H+]1+K1K2[CeIV][S]