Step 1. Identify the Reaction Components: The reaction involves the reduction of an acid chloride to an aldehyde using H2 gas in the presence of palladium on barium sulphate (Pd-BaSO4).
Step 2. Characteristics of Rosenmund Reduction: This specific reduction, where an acid chloride is reduced to an aldehyde, is known as the Rosenmund reduction. In this process, the use of Pd-BaSO4 prevents further reduction of the aldehyde to an alcohol.
Step 3. Conclude with the Recognized Reaction: Thus, the partial reduction of the acid chloride to an aldehyde in this reaction confirms it as a Rosenmund reduction.
