Which of the following amines will react with cyclohexanone to give enamine ?

1. $\left(\mathrm{CH}_{3}ight)_{2} \mathrm{NH}$
2. 
3. 
4. All of these

Solution

Carbonyl compounds containing at least one $\alpha$ -hydrogen atom react with a secondary amine to give enamine


In second case enamine-amine tautomerism is possible and equilibrium lies completely on the imine side.

Asked in: JEE-TOPICTESTS-CHEMISTRY

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