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COMEDK2023Evening ShiftChemistryAldehydes and KetonesActual

Which one of the following compounds would not undergo Aldol condensation?

Options

  1. A2,2-Dimethyl butanal
  2. B2- Methyl pentanal
  3. C1- Phenyl propanone.
  4. DPhenyl ethanal

Correct answer

A. 2,2-Dimethyl butanal

Step-by-step solution

Aldol condensation requires the presence of at least one -hydrogen atom in the carbonyl compound. An -hydrogen is a hydrogen atom attached to the carbon atom adjacent to the carbonyl group. Analyzing the structures: 1. 2,2-Dimethylbutanal: The structure is CH₃-CH₂-C(CH₃)₂-CHO . The -carbon is the carbon atom attached to the aldehyde group. In this molecule, the -carbon is bonded to two methyl groups and the aldehyde group, meaning it has no hydrogen atoms attached to it. Thus, it lacks -hydrogens. 2. 2-Methylpentan

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