How is 3-(3-Fluorophenyl)-3-oxopropanenitrile (CAS: 21667-61-8) typically synthesized?

3-(3-Fluorophenyl)-3-oxopropanenitrile is commonly synthesized via nucleophilic substitution reactions where a 3-fluorophenyl group is introduced onto a 3-cyanoacrylate or a similar precursor. The reaction typically requires a mild base in an appropriate solvent. The yield and selectivity can be enhanced by optimizing reaction conditions, such as temperature and solvent choice. Common catalysts include sodium hydride and triethylamine.