Question

Write chemical reactions involved in Rosenmund Reduction

Hint:

The Rosenmund reduction is particularly useful for selectively producing aldehydes from acid chlorides, avoiding the formation of alcohols by precisely controlling the reaction's extent.

Answer 1

The Rosenmund reduction is a chemical process that efficiently converts acid chlorides into aldehydes. This reaction is facilitated by hydrogen gas and employs a palladium (Pd) catalyst that is deactivated with barium sulfate \( \text{BaSO}_4 \) to prevent over-reduction. \[ \text{RCOCl} + \text{H}_2 \xrightarrow[\text{BaSO}_4]{\text{Pd}} \text{RCHO} + \text{HCl} \] For instance, converting acetyl chloride to acetaldehyde: \[ \text{CH}_3\text{COCl} + \text{H}_2 \xrightarrow[\text{BaSO}_4]{\text{Pd}} \text{CH}_3\text{CHO} + \text{HCl} \]