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QJEEM22Ch1712: JEE Main 2022 Chemistry - Class 12 JEEM22Ch1712 Solution: Which of the following ketone will NOT give enamine on…

Which of the following ketone will NOT give enamine on treatment with secondary amines? [where t-Bu is −- C(CH3)3]

Multiple Choice Options

  • A https://ik.imagekit.io/novatra/photos/13cebdbbcee2ea477fb560706929d314a4c213b741e54e47c87db1896f2ab562.webp
  • B https://ik.imagekit.io/novatra/photos/c8ce72df7809283825ab5510ef9641d61d06be6fa66eab1e7eb8a9adcd33b629.webp
  • C https://ik.imagekit.io/novatra/photos/45722237dfa37ed3d2e39d654814ba15f3f0d4563e822e72a37c7f7c941b1406.webp
  • D https://ik.imagekit.io/novatra/photos/7a2d3c2201e56c31af2b5f4d0fffcb3d65e17f02205f87f78f3e37da3b0365e4.webp

Step-by-Step Verified Solution

In order to form enamine from the reaction of carbonyl compound with 2∘2^{\circ} amine, the carbonyl compound must have α\alpha -hydrogen.

JEE Main 2022 (Online) 25th June Evening Shift Chemistry - Compounds Containing Nitrogen Question 92 English Explanation
Along with this, due to steric crowding by t-Bu group, it is difficult for 2∘2^{\circ} amine to attack on this compound.

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