1.1: triphenylphosphine; 1H-imidazole; iodine / dichloromethane / 3 h / 0 - 25 °C / |Inert atmosphere 2.1: lithium hexamethyldisilazane; n-butyllithium / hexane; tetrahydrofuran / 1 h / -45 - 0 °C / |Inert atmosphere 2.2: 3 h / -45 - 0 °C / |Inert atmosphere 3.1: pyridinium p-toluenesulfonate / ethanol / 2 h / 50 °C / |Inert atmosphere 4.1: 4-methylmorpholine N-oxide; tetrapropylammonium perruthennate / dichloromethane / 0.33 h / 25 °C / |Molecular sieve; |Inert atmosphere 5.1: hydrogenchloride / water; 1,4-dioxane / 18 h / 120 °C / |Inert atmosphere 6.1: formic acid; dihydrogen peroxide / water / 1 h / 0 °C / |Inert atmosphere 7.1: potassium permanganate / water; methanol / 1 h / 25 °C / |Inert atmosphere View Scheme