Discussion
Benzaldehyde reacts with acetophenone in the presence of NaOH at 293 K to give benazlacetophenone. This reaction is an example of
Answer: E
The reaction is a cross aldol condensation.
Benzaldehyde has no α-hydrogen, while acetophenone has three. In dilute NaOH, the enolate of acetophenone adds to benzaldehyde and the product loses water to give benzalacetophenone (chalcone). An aldol condensation between two different carbonyl compounds is called a cross aldol condensation (the Claisen-Schmidt reaction).
'Aldol condensation' is the general family, but the specific name for two different partners is cross aldol. Cannizzaro is a disproportionation of aldehydes without α-hydrogen, and Wolff-Kishner and Clemmensen are reductions of C=O to CH2.
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