1.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.08 h / -78 °C / Inert atmosphere 1.2: 0.03 h / Inert atmosphere 2.1: phenyllithium / tetrahydrofuran / 3 h / -78 - 20 °C / Inert atmosphere 3.1: hexaammonium heptamolybdate tetrahydrate; dihydrogen peroxide / ethanol; water / 24 h / 20 °C View Scheme