Question

Which of the following is obtained by Rosenmund's reduction of acyl chloride?
 

• A. Aldehyde
• B. Alcohol
• C. Hydrocarbon
• D. Alkyl chloride

Hint:

Rosenmund’s reduction selectively converts acyl chlorides to aldehydes without over-reduction.

Answer 1

The Correct Option is A

Step 1: Reaction Mechanism:
Rosenmund's reduction involves catalytic hydrogenation of acyl chlorides to aldehydes. \[ RCOCl + H_2 \xrightarrow{Pd/BaSO_4} RCHO + HCl \] Step 2: Why aldehyde?
- The catalyst palladium on barium sulfate prevents over-reduction to alcohol.