1.1: hydrogenchloride / water / 0.5 h / 55 °C / Inert atmosphere 2.1: PhCOSK / N,N-dimethyl-formamide / 2 h / 150 °C / Inert atmosphere 3.1: iodine; magnesium / tetrahydrofuran / 1 h / Inert atmosphere; Reflux 3.2: 2 h / Reflux; Inert atmosphere 3.3: 3 h / Reflux 4.1: palladium 10 on activated carbon; hydrogen / isopropyl alcohol / 12 h / 110 °C / 45603.1 Torr 5.1: hydrogenchloride; formic acid / water / 5 h / Reflux; Inert atmosphere 6.1: dimethyl sulfoxide / 3 h / 90 °C / Inert atmosphere 7.1: water; hydrogen bromide / 10 h / Reflux; Inert atmosphere View Scheme