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Grade 12Organic Chemistry

Explanation of Stephen reaction mechanism with example

Profile image of Dhanashri narule
8 Years agoGrade 12
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1 Answer

Profile image of Arun
8 Years ago

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.

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Arun (askIITians forum expert)

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