Question

Which of the following compound would undergo Aldol condensation?

• A. $Methanal$
• B. $Benzaldehyde$
• C. $2,2-Dimethylbutanal$
• D. $Phenylacetaldehyde$

Answer 1

Answer: (B)

$Benzaldehyde$

Answer 2

The compound that would undergo Aldol condensation is **Benzaldehyde. **

Aldol condensation is a reaction between an aldehyde or ketone with an enolate ion formed from the same or a different molecule. Benzaldehyde has an aldehyde functional group and can readily undergo Aldol condensation. In this reaction, the alpha carbon of the aldehyde is deprotonated by a base to form an enolate ion, which then reacts with another molecule of the aldehyde to form a beta-hydroxy aldehyde (aldol).

The aldol product can undergo subsequent dehydration to form an α,β-unsaturated aldehyde.

Therefore, the correct option is (B): among the given compounds, Benzaldehyde is the one that would undergo Aldol condensation.