1: iodine / toluene / 5 h / |Reflux; |Inert atmosphere 2: palladium diacetate; caesium carbonate / diethylene glycol dimethyl ether / 12 h / 100 °C / 760.05 Torr / |Inert atmosphere View Scheme

1: 50percent NaH/mineral oil, 18 crown 6 / dioxane / 3 h / 65 °C 2: Redex CF resin View Scheme

iodine in toluene 5 h; RefluxInert atmosphere;