4-Fluorobenzaldehyde is a fluorinated benzaldehyde with inhibitory activity of mushroom tyrosinase. 4-Fluorobenzaldehyde is commonly used as a synthetic intermediate in the preparation of pharmaceutical compounds.
• For a facile route to 4-aryloxy phenols (Cu catalyzed substitution then Baeyer-Villiger reaction) see: Synthesis, 63 (1991). Ketones behave similarly.