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Chemistry Question on Aldehydes, Ketones and Carboxylic Acids

Catalyst SnCl2/HClSnCl_{2}/HCl is used in

A

Stephens reduction

B

Cannizzaros reaction

C

Clemmensen reduction

D

Rosenmunds reduction

Answer

Stephens reduction

Explanation

Solution

In the Stephens reduction alkyl cyanide is reduced to aldehyde by R−C≡N+2H−>[Sncl2/HCl]RCH=NH⋅HClalidime hydrochlorideR-C\equiv N +2H { ->[Sncl_2/HCl]} \underset{\text{alidime hydrochloride}}{RCH =NH\cdot HCl} −>[H2O]RCHOaldehyde+NH4Cl {->[H_2O]}\underset{\text{aldehyde}}{RCHO}+N{{H}_{4}}Cl