2-Amino-5-fluorobenzonitrile (CAS number 61272-77-3) possesses multiple functional groups, including an amine, a nitrile and a fluoride. The ortho-positioning of the amine and nitrile substituents makes 2-amino-5-fluorobenzonitrile an ideal precursor for synthesizing heterocyclic compounds. 2-Amino-5-fluorobenzonitrile reacts with aminoethanol derivatives catalyzed by zinc chloride, yielding oxazoline ligands for use in Cu-catalyzed enantioselective nitroaldol reactions. Through its reaction with cyclic ketone in Friedländer reaction, 2-amino-5-fluorobenzonitrile serves as a precursor for tacrine derivatives. In the case of synthesizing quinazoline/quinazolinone derivatives, the reaction of 2-amino-5-fluorobenzonitrile with cyclic ketones derivatives occurs under basic condition.