Why Does Benzaldehyde Not Enolize in Solution?
This Alpha-Hydrogen Is the Hydrogen Attached or Adjacent to the Carbon in the Carbonyl Group. the Absence of the Alpha-Hydrogen in Benzaldehyde Makes It...
This alpha-hydrogen is the hydrogen attached or adjacent to the carbon in the carbonyl group. The absence of the alpha-hydrogen in benzaldehyde makes it impossible for it to enolize.
Why does benzaldehyde not form an enolate in solution?
The nucleophile has to be acetaldehyde, since benzaldehyde doesn't have an alpha-hydrogen and can't make an enolate anion. To avoid having acetaldehyde react with itself in an aldol reaction, first mix the benzaldehyde with the base (no reaction), then add the acetaldehyde slowly.
Does benzaldehyde undergo condensation?
Benzaldehyde does not undergo aldol condensation whereas acetaldehyde does. Aldol condensation involves the addition of an aldehyde (or ketonic) group of one molecule of the carbonyl compound (aldehyde or ketone) with the α-hydrogen atoms of the other. ... Benzaldehyde, which has no α-hydrogen atom, does not.
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