Question

Product of the following reaction is:

• A.
• B.
• C.
• D.

Hint:

The partial reduction of a nitrile (\(-CN\)) using SnCl\textsubscript{2}/HCl gives an imine intermediate that hydrolyzes to form an aldehyde (\(-CHO\)). This is an important method for synthesizing aldehydes from nitriles.

Answer 1

The Correct Option is B

Step 1: Reaction Mechanism Clarification
The reaction described is the reduction of a nitrile (\(-CN\)) group utilizing stannous chloride (\(\text{SnCl}_2\)) and hydrochloric acid (\(\text{HCl}\)). This process proceeds via a two-step pathway:% Option(A) Initially, the nitrile (\(-CN\)) undergoes reduction to an imine intermediate (\(-C=NH\)) facilitated by \(\text{SnCl}_2\) and \(\text{HCl}\).% Option(B) Subsequently, acidic hydrolysis (\(\text{H}_3\text{O}^+\)) of this imine intermediate yields an aldehyde (\(-CHO\)).
Step 2: Final Product Determination
Following hydrolysis, the resultant product is identified as benzaldehyde (\(-CHO\)).
Step 3: Option Correlation
The accurately identified final product, benzaldehyde (\(\text{CHO}\)), aligns with option (B).Final Answer: The reaction yields benzaldehyde (\(\text{CHO}\)).