Von Richter Reaction

Von Richter Reaction

Von Richter Reaction


When aromatic nitro compounds are treated with potassium cyanide in aqueous ethanol to generate a carboxylic acid ortho to the existing nitro group is known as Victor Von Richter reaction or simply Von Richter reaction.
This reaction is cin substitution (ring substitution resulting in the entering group positioned adjacent to the previous location of the leaving group).
Best results are obtained when electron withdrawing group is present at ortho or para position. Reaction gives a small yeild of product.
The von Richter reaction can be inhibited in the presence of potassium ferricyanide (K3Fe(CN)6) and sodium sulfite.
Von Richter Reaction

Mechanism of Von Richter Reaction

Mechanism of  Von Richter Reaction

Examples of Von Richter Reaction

Examples of Von Richter Reaction