KCET2026ChemistryAldehydes and Ketones
The major product ' A ' in the given reaction is Benzaldehyde Acetophenone, OH ^-/293 K ' A ' (Major product)
Correct answer
3
Step-by-step solution
The reaction between benzaldehyde and acetophenone in the presence of a dilute base is an example of a crossed aldol condensation, specifically known as the Claisen-Schmidt condensation. Benzaldehyde ( C ₆ H ₅ CHO ) lacks -hydrogens, while acetophenone ( C ₆ H ₅ COCH ₃ ) has three -hydrogens. The base ( OH ^- ) abstracts an -hydrogen from acetophenone to form an enolate ion: C ₆ H ₅ COCH ₃ + OH ^- C ₆ H ₅ COCH ₂^- + H ₂ O The nucleophilic enolate ion then attacks the electrophilic carbonyl carbon of benzaldehyde to