1: 2.075 g / HNO3 / acetic acid; acetic anhydride / 96 h / 0 °C 2: 0.086 g / Zn, SnCl2, HCl / ethanol / 0.17 h / Heating 3: 1.) NaNO2 2.) CuCl, HCl / 1.) water, 0 deg C, 0.5 h 2.) 12 h View Scheme

nitric acid in acetic anhydride; acetic acid T=0°C; 96 h;