Question

Claisen-Schmidt reaction takes place between

• A. Benzophenone and Benzaldehyde
• B. Benzaldehyde and Formaldehyde
• C. Benzaldehyde and Butanone
• D. Acetone and Butanone

Answer 1

The correct option is C Benzaldehyde and Butanone

Claisen Schmidt reaction is a cross aldol condensation of ketone with aldehyde of no α-hydrogens.

Butanone is a ketone and benzaldehyde has no α-hydrogens so it will undergo Claisen Schmidt reaction.

Both acetone and butanone are ketone so their aldol condensation reaction is not called as Claisen Schmidt reaction.

Both benzaldehyde and formaladehyde does not have α-hydrogens so they dont show aldol reaction.

Both benzaldehyde and benzophenone does not have α-hydrogens so they dont show aldol reaction.