4-Fluoroaniline

4-Fluoroaniline is an organofluorine compound with the formula FC6H4NH2. A colorless liquid, it is one of three isomers of fluoroaniline. It is used as a precursor to various potential and real applications.

4-Fluoroaniline can be prepared by the hydrogenation of 4-nitrofluorobenzene.

It is a common building block in medicinal chemistry and related fields. For example, it is a precursor to the fungicide fluoroimide or the fentanyl analogue parafluorofentanyl. It has also been evaluated for the production of ligands for homogeneous catalysis.