Question

How is propanenitrole converted into propanal. Write the equation??

Answer 1

Answer:

By Stephen reduction

the SnCl2 acts as the reducing agent and reduces the nitrile to an iminium salt. The hydrolysis of iminium salt yields aldehyde.

Reaction is attached below

Answer 2

The correct question is - " How is propanenitrile converted into propanal. Write the equation?? "

Propanenitrile can be converted into propanal by following reaction -

React propanenitrile with SnCl$_{2}$ in presence of hydrochloric acid  ( HCl ) , propanal is formed .

CH$_{3}$−CH$_{2}$ −C≡N + SnCl$_{2}$ / HCl ⟶  CH$_{3}$−CH$_{2}$  −CHO

• This reaction is known as Stephen reaction .

• SnCl$_{2}$ acts as a reducing agent .

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