Which of the following, compounds is the reactant in Rosenmund's reduction?
Which of the following, compounds is the reactant in Rosenmund's reduction?
$\mathrm{CH}_3 \mathrm{CO}_2 \mathrm{H}$
$\mathrm{CH}_3 \mathrm{CHO}$
$\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{Cl}$
$\mathrm{CH}_3 \mathrm{COCl}$
Solution
Rosenmund's reduction involves the reduction of acid halide into aldehyde by means of $\mathrm{Pd} / \mathrm{BaSO}_4$.
$\mathrm{CH}_3 \mathrm{COCl} \stackrel{\mathrm{Pd} / \mathrm{BaSO}_4}{\stackrel{\mathrm{H}_2}{\longrightarrow}} \mathrm{CH}_3 \mathrm{CHO}+\mathrm{HCl}$