hydrogenchloride; water; chlorine T=20 - 29°C;

1: With hydrogenchloride in water T=30°C; Sandmeyer reaction; 2: With sodium nitrite in water T=-3 - 0°C; Sandmeyer reaction; 0.833333 h; 3: With thionyl chloride; water; potassium iodide; copper(l) chloride T=-5 - 0°C; Sandmeyer reaction; 3.41667 h;

1: With hydrogenchloride; acetic acid; sodium nitrite in water T=0°C; Sandmeyer reaction; 2: With sulfur dioxide; water; acetic acid; copper(l) chloride T=0°C; Sandmeyer reaction;

thiourea T=130°C; 1 h;