Kolbe–Schmitt reaction (phenol → ortho-hydroxybenzoic acid) (Phenoxide attacks electrophilic carbon of CO₂; ortho-carboxylation after acidification)
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Phenoxide attacks electrophilic carbon of CO₂; ortho-carboxylation after acidification (salicylic acid synthesis)
What each symbol means
| Symbol | What it stands for |
|---|---|
| CO₂ | Electrophile (dry ice / pressure in industrial variants) |
| C₆H₅OH | Phenol |
When to use this
Sodium phenoxide; CO₂; heating; high pressure in Kolbe–Schmitt industrial conditions; acid workup gives salicylic acid.