1.1: NaNO2; aq. HCl 1.2: copper(I) cyanide / H2O / 0.33 h / 20 °C 2.1: 70 percent H2SO4 / 70 °C 3.1: sodium peroxide / H2O / 1 h / 20 °C 4.1: SOCl2 / 12 h / Heating View Scheme

1: sodium peroxide / H2O / 1 h / 20 °C 2: SOCl2 / 12 h / Heating View Scheme

1: 70 percent H2SO4 / 70 °C 2: sodium peroxide / H2O / 1 h / 20 °C 3: SOCl2 / 12 h / Heating View Scheme

thionyl chloride Chlorination; 12 h; Heating;