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Enamine formation of ketones with secondary amines

This type of question, asked 2 times: 25 Jun 2022, 26 Jun 2022. All 2 questions below, oldest first.

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  1. Question 1

    25 Jun 2022

    139
    Which of the following ketone will NOT give enamine on treatment with secondary amines? [where t−But - Bu is −C(CH3)3- C\left( CH_{3} \right)_{3} ]

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  2. Question 2

    26 Jun 2022

    47
    Among the following structures, which will show the most stable enamine formation? (Where Me is −CH3-CH_{3} )

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