Stephen's reduction selectively synthesizes aldehydes. Which starting functional group is required a — Aldehydes Ketones and Carboxylic Acids Chemistry Question

💡 Solution & Explanation

Stephen's reduction specifically reduces alkyl or aryl nitriles ($R-CN$) to aldehydes using $SnCl_2/HCl$ to form an intermediate imine hydrochloride salt, followed by aqueous hydrolysis.