1: 16.9 g / sodium iodide / acetic anhydride / 0.5 h / 120 - 130 °C 2: 11.6 g / silver fluoride / pyridine / 3.5 h / 20 - 25 °C 3: 3.5 g / 5 M ammonium hydroxide / ethanol / 96 h / Ambient temperature 4: 2.4 g / bromine / methanol / 1 h / 0 - 5 °C 5: 104 mg / barium hydroxide / H2O / 5 h / 60 - 70 °C View Scheme