Remember the key reactions of phenol:
- \textbf{Kolbe-Schmitt Reaction:} Phenol + NaOH, then CO\(_2\), then H\(^+\) \(\rightarrow\) Salicylic acid (o-hydroxybenzoic acid).
- \textbf{Reimer-Tiemann Reaction:} Phenol + CHCl\(_3\)/NaOH \(\rightarrow\) Salicylaldehyde (o-hydroxybenzaldehyde).
- \textbf{Acetylation:} Phenol + Acetic Anhydride \(\rightarrow\) Phenyl acetate.
The reaction of Salicylic acid with acetic anhydride gives Aspirin.