Question

The Rosenmund reduction involves the reduction of which of the following compounds?

• A. Carboxylic acid to alcohol
• B. Aldehyde to alcohol
• C. Acyl chloride to aldehyde
• D. Alkene to alkane

Hint:

The Rosenmund reduction is selective for converting acyl chlorides to aldehydes without reducing the aldehyde to an alcohol.

Answer 1

The Correct Option is C

The Rosenmund reduction is a process used to reduce acyl chlorides to aldehydes. In this reaction, an acyl chloride is treated with hydrogen gas in the presence of a palladium catalyst poisoned by sulfur (such as palladium on barium sulfate). The catalyst helps in the selective reduction of the acyl chloride to an aldehyde while preventing further reduction to an alcohol. Therefore, the correct answer is that the Rosenmund reaction reduces acyl chlorides to aldehydes.