Which among the following reagents is used in the Rosenmund reduction:

Which among the following reagents is used in the Rosenmund reduction:
  1. $\mathrm{Zn}-\mathrm{Hg} / \mathrm{HCl}$
  2. $\mathrm{Na}-\mathrm{Hg} / \mathrm{H}_2 \mathrm{O}$
  3. $\mathrm{H}_2 / \mathrm{Pt}$ at $473 \mathrm{~K}$
  4. $\mathrm{H}_2 / \mathrm{Pd}-\mathrm{BaSO}_4$

Solution

$\mathrm{H}_2 / \mathrm{Pd}-\mathrm{BaSO}_4$ is used in the Rosenmund reduction.

Asked in: MHT CET 2022 (07 Aug Shift 2)

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