1: With hydrogenchloride; sodium nitrite in water T=0°C; 0.0833333 h; 2: With potassium iodide in water T=0 - 20°C;

1.1: 70 percent / H2 / Pd/C / ethanol 2.1: NaNO2; conc. HCl / H2O / 0.17 h / 0 °C 2.2: 63 percent / KI / H2O / 0.5 h View Scheme

1: 3-iodo-1-(pentafluorosulfanyl)benzene With magnesium; methyl iodide in diethyl ether 1 h; Heating / reflux; 2: carbon dioxide in diethyl ether T=-10 - 20°C; 16 h; 3: With hydrogenchloride in diethyl ether; water T=20°C; pH=3 - 4;