1: chlorobenzene; PCl5 2: iron; acetic acid 3: palladium/BaCO3; ethanol / Hydrogenation 4: concentrated aqueous HCl 5: aqueous H2SO4; aqueous NaNO2 / 90 - 95 °C 6: sodium borate; aluminium chloride; O,O'-dimethyl-diethylene glycol View Scheme

1: chlorobenzene; PCl5 2: iron; acetic acid 3: platinum; aqueous HCl / Hydrogenation 4: H2O; aqueous NaNO2 / 70 °C 5: aluminium chloride; sodium borate; dimethyl ether View Scheme

1: chlorobenzene; PCl5 2: iron; acetic acid 3: palladium/BaCO3; ethanol / Hydrogenation 4: concentrated aqueous HCl 5: aqueous H2SO4; aqueous NaNO2 / 90 - 95 °C View Scheme

1: chlorobenzene; PCl5 2: iron; acetic acid 3: palladium/BaCO3; ethanol / Hydrogenation 4: concentrated aqueous HCl View Scheme