Rosenmund Reduction: Acyl chloride R - CO - Cl is reduced to the corresponding aldehyde using palladium in the presence of barium sulphate (BaSO 4). This reaction is known as the Rosenmund reduction reaction . Rosenmund reduction is an organic reaction that converts acid chloride to aldehyde with hydrogen and palladium catalyst. Learn the definition, example, mechanism and applications of this reaction with ChemistryLearner. The Rosenmund Reduction is a chemical reaction where an acyl chloride is selectively reduced into an aldehyde. This is achieved through hydrogenation using gaseous hydrogen in the presence of a specific catalyst, typically palladium supported on barium sulphate. The general equation is: R-COCl + H₂ → R-CHO + HCl. Rosenmund reduction reaction is a hydrogenation mechanism that reduces an acyl chloride to an aldehyde preferentially. The reaction is named after Karl Wilhelm Rosenmund , who found the reactions in 1918.
