Yield given. Multistep reaction. Yields of byproduct given;

1: formic acid With acetic anhydride 2: 1-amino-2,3-dichlorobenzene

Yield given. Multistep reaction. Yields of byproduct given;

2: 1.) hydrochloric acid; 2.) sodium nitrite / 1.) water, 2h, 30-40 deg C; 2.) water, >5 deg C, 1h 3: 1.) sodium sulphite, hydrochloric acid, copper sulphate 2.) sodium hydroxide / 1.) water, >5 deg C, 1h; 2.) water, room temperature, 18h 4: 56 percent / Iron powder, ferrous sulphate / H2O / 5 h / 90 - 95 °C View Scheme