Question

Explain Stephen's reaction with example.​

Answer 1

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Stephen Reaction Mechanism Begins with the Addition of Gaseous Hydrogen Chloride to the Given Nitrile. The reaction describes the preparation of aldehydes from nitriles with the help of tin(II) chloride and hydrochloric acid and the quenching of the resulting iminium salt with water. ...

Answer 2

Stephen reaction is used to synthesise aldehydes from nitriles. In this reaction, the nitrile compound is first converted to an iminium salt in presence of catalyst tin (II) chloride.This is simply the reduction of CN group to CHNH2+Cl- (iminium salt). The iminium salt formed as an intermediate undergoes hydrolysis reaction to form an aldehyde.The following equation suggests the chemical reaction involved.