1.1: 71 percent / NaNO2; conc. sulfuric acid / 0.06 h / 0 - 20 °C 2.1: sodium dithionit / H2O; 2-methoxy-ethanol / 3 h / Heating 2.2: 94 percent / conc. HCl / H2O; 2-methoxy-ethanol / 1 h / Heating View Scheme

1.1: 71 percent / NaNO2; conc. sulfuric acid / 0.06 h / 0 - 20 °C 2.1: sodium dithionit / H2O; 2-methoxy-ethanol / 3 h / Heating 2.2: 94 percent / conc. HCl / H2O; 2-methoxy-ethanol / 1 h / Heating View Scheme

sulfuric acid; sodium nitrite T=0 - 20°C; 0.055 h;