Franchimont reaction

What is Franchimont reaction?

The Franchimont reaction is a chemical reaction that involves the dimerization of carboxylic acids to form 1,2-dicarboxylic acids. This reaction is typically achieved by treating α-bromocarboxylic acids with potassium cyanide, followed by hydrolysis and decarboxylation.

Franchimont reaction
Franchimont reaction


Franchimont, A.P.N. (1872), Ueber die Dibenzyldicarbonsäure. [On the dibenzyldicarboxylic acid.] Ber. Dtsch. Chem. Ges., 5: 1048-1050.