1: ethanol / 4 h / 100 °C / Inert atmosphere 2: palladium 10 on activated carbon; hydrogen / methanol / 12 h / 10343.2 Torr / Inert atmosphere View Scheme

bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine T=55°C; Sonogashira cross-coupling;