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Question
What is the action of the following reagent on ethyl amine?
Nitrous acid
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Solution 1
Ethyl amine, on reaction with nitrous acid, forms ethyl diazonium salts as a very unstable intermediate, which decomposes immediately by reaction with solvent water to give ethanol.
\[\ce{\underset{Ethyl amine}{C2H5 - NH2} + HNO2 ->[273-278 K][(NaNO2 + HCl)] \underset{Ethyl diazonium chloride}{[C2H5 - \overset{\oplus}{N2}Cl^\ominus]} ->[H2O] \underset{Ethanol}{C2H5 - OH} + N2 \uparrow + HCl}\]
Solution 2
\[\ce{C2H5 - NH2 + HNO2 -> C2H5 - OH + N2 \uparrow + H2O}\]
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