Aldol condensation (β-hydroxy carbonyl pathway) (Enolate attacks another carbonyl; dehydration often gives conjugated enone)
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Enolate attacks another carbonyl; dehydration often gives conjugated enone
What each symbol means
| Symbol | What it stands for |
|---|---|
| base | OH⁻ or enolate-forming conditions |
| RCH₂CHO | Aldehyde/ketone with α-H |
When to use this
α-H present; base generates enolate; nucleophilic addition to C=O; heat often drives dehydration to α,β-unsaturated product.