Silver‐Mediated Decarboxylative Fluorination of Paraconic Acids: A Direct Entry to β‐Fluorinated γ‐Butyrolactones

Abstract The silver(I)‐mediated decarboxylative fluorination of paraconic acids using Selectfluor ® as a fluorine source is reported. Readily available paraconic acids undergo decarboxylative fluorination with Selectfluor ® mediated by AgNO 3 to give the corresponding β‐fluorinated γ‐butyrolactones in moderate to good yields. This approach serves as a direct and site‐selective strategy for the introduction of a fluorine atom at the β position of γ‐butyrolactone cores. The fluorinated products are synthetically useful scaffolds for organic synthesis.