5-Fluoroindole is a reactant used in various syntheses. It was used in the synthesis of Spirotetrahydro β-Carbolines (Spiroindolones), which is a new class of potent and orally efficacious compounds for the treatment of malaria. 5-Fluoroindole was also a reactant in direct indole and pyrrole couplings to carbonyl compound in total synthesis of Acremoauxin A and Oxazinin 3.