1: [{(η5-C5Me5)IrCl}2(μ-Cl)2]; trifluorormethanesulfonic acid / anhydrous xylene / 36 h / Inert atmosphere; Reflux 2: acetic acid / water / 5.25 h / 0 °C 3: PPA / 1 h / 180 °C View Scheme

[{(η5-C5Me5)IrCl}2(μ-Cl)2]; trifluorormethanesulfonic acid in anhydrous xylene 36 h; Inert atmosphereReflux;