Question:
Identify the product ' B ' in the following sequence of reactions.
\[ \text{Ethanenitrile} \xrightarrow{\text{SnCl}_2, \text{HCl}} \text{A} \xrightarrow{\text{H}_3\text{O}^+} \text{B} + \text{NH}_4\text{Cl} \]
Identify the product ' B ' in the following sequence of reactions.
\[ \text{Ethanenitrile} \xrightarrow{\text{SnCl}_2, \text{HCl}} \text{A} \xrightarrow{\text{H}_3\text{O}^+} \text{B} + \text{NH}_4\text{Cl} \]
\[ \text{Ethanenitrile} \xrightarrow{\text{SnCl}_2, \text{HCl}} \text{A} \xrightarrow{\text{H}_3\text{O}^+} \text{B} + \text{NH}_4\text{Cl} \]
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Stephen reaction: Nitrile → Aldehyde.
Updated On: May 4, 2026
- Ethylamine
- Ethanamide
- Ethanol
- Ethanal
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The Correct Option is D
Solution and Explanation
Concept:
This is Stephen reaction, where nitriles are reduced to aldehydes.
Step 1: First reaction. \[ \text{CH}_3CN \xrightarrow{\text{SnCl}_2/HCl} \text{iminium salt (A)} \]
Step 2: Hydrolysis. \[ \text{A} \xrightarrow{H_3O^+} \text{CH}_3CHO + NH_4Cl \]
Step 3: Conclusion. \[ \text{Product B = Ethanal} \]
This is Stephen reaction, where nitriles are reduced to aldehydes.
Step 1: First reaction. \[ \text{CH}_3CN \xrightarrow{\text{SnCl}_2/HCl} \text{iminium salt (A)} \]
Step 2: Hydrolysis. \[ \text{A} \xrightarrow{H_3O^+} \text{CH}_3CHO + NH_4Cl \]
Step 3: Conclusion. \[ \text{Product B = Ethanal} \]
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