The final event in the aldol condensation reaction at higher temperatures is a base-catalyzed dehydration process. Dehydration processes are usually catalyzed by acid.
At higher temperatures the beta-hydroxy carbonyl compounds initially obtained through the aldol condensation can undergo base-catalyzed hydration.
The mechanism involves deprotonation of an alpha-hydrogen followed by the loss of a hydroxide ion in the second step to afford the alpha, beta-unsaturated carbonyl compound.
From the compounds shown below, choose THREE that can undergo base-catalyzed dehydration.
Select ALL that apply.