1: sodium nitrite / formic acid; H2O / 1 h / 0 °C 2: 70 percent / H2O2 / formic acid / 0.17 h / 0 - 40 °C View Scheme

dihydrogen peroxide; sodium nitrite 1.) formic acid, H2O, 0 deg C, 1 h, 2.) formic acid, from 0 to 40 deg C, 10 min; Yield given. Multistep reaction. Yields of byproduct given;

sodium nitrite in formic acid; water T=0°C; 1 h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;