Which of the following catalyst is used in Rosenmund reaction?
Which of the following catalyst is used in Rosenmund reaction?
$\mathrm{Cu}_{2} \mathrm{Cl}_{2}$
$\mathrm{CS}_{2}$
$\mathrm{Pd}-\mathrm{BaSO}_{4}$
$\mathrm{V}_{2} \mathrm{O}_{5}$
Solution
When benzoyl chloride is hydrogenated in the presence palladium on barium sulphate $\left(\mathrm{Pd} / \mathrm{BaSO}_{4}\right)$, benzaldehyde is obtained. This reaction is called Rosenmund reduction.