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NEET Chemistry Aldehydes, Ketones Question Bank Self Evaluation Test - Aldehydes, Ketons and Carboxylic Acids

  • question_answer
    Which of the following pairs of reactants is most effective in forming an enamine?

    A) \[C{{H}_{3}}C{{H}_{2}}\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,H+{{[{{(C{{H}_{3}})}_{2}}CH]}_{2}}NH\]

    B)

    C) \[{{(C{{H}_{3}})}_{3}}C\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,H+{{(C{{H}_{3}})}_{2}}NH\]

    D) None of these form an enamine.

    Correct Answer: C

    Solution :

    [c] \[2{}^\circ \] amine must be less sterically hindered. In option [b] and [c] \[2{}^\circ \] amine is being used but due to more reactivity of aldehyde compared to cyclohexanone. Option [c] is correct.


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