Fluorination of organic molecules has become increasingly feasible due to advances in catalysis, enabling the synthesis of complex fluorinated compounds. Fluorine imparts desirable properties such as metabolic stability and thermal resistance, making fluorinated molecules valuable in pharmaceuticals, agrochemicals, and materials. Despite these advances, forming carbon-fluorine (C–F) bonds remains challenging due to fluorine's high electronegativity and small ionic radius, which limit its nucleophilicity. Transition-metal-catalyzed reactions have significantly improved fluorination efficiency, with recent developments in both C–F and C–CF₃ bond formation. Catalysis has played a key role in overcoming the challenges of fluorination, particularly in aromatic and aliphatic systems. Transition-metal-catalyzed cross-coupling reactions, such as those involving palladium, have enabled the formation of C–F and C–CF₃ bonds under milder conditions. However, reductive elimination of C–F bonds remains a major challenge due to the strong metal-fluorine bond and the high polarization of the bond. Recent studies have shown that the use of bulky ligands, such as t-Bu-XPhos, can facilitate C–F bond formation. For C–CF₃ bond formation, similar challenges exist, including the high electronegativity of the trifluoromethyl group and the difficulty of forming stable metal-trifluoromethyl complexes. Despite these challenges, transition-metal-catalyzed reactions have enabled the synthesis of complex trifluoromethylated compounds. In addition to transition-metal catalysis, organocatalytic methods have also been developed for the selective formation of C–F and C–CF₃ bonds. These methods often involve the use of chiral catalysts to achieve enantioselectivity. Overall, the development of new catalysts and reaction conditions has significantly advanced the field of fluorination chemistry, making it more efficient and practical for the synthesis of complex fluorinated molecules. Future research will focus on improving the efficiency and selectivity of these reactions, as well as expanding their applicability to a wider range of substrates.Fluorination of organic molecules has become increasingly feasible due to advances in catalysis, enabling the synthesis of complex fluorinated compounds. Fluorine imparts desirable properties such as metabolic stability and thermal resistance, making fluorinated molecules valuable in pharmaceuticals, agrochemicals, and materials. Despite these advances, forming carbon-fluorine (C–F) bonds remains challenging due to fluorine's high electronegativity and small ionic radius, which limit its nucleophilicity. Transition-metal-catalyzed reactions have significantly improved fluorination efficiency, with recent developments in both C–F and C–CF₃ bond formation. Catalysis has played a key role in overcoming the challenges of fluorination, particularly in aromatic and aliphatic systems. Transition-metal-catalyzed cross-coupling reactions, such as those involving palladium, have enabled the formation of C–F and C–CF₃ bonds under milder conditions. However, reductive elimination of C–F bonds remains a major challenge due to the strong metal-fluorine bond and the high polarization of the bond. Recent studies have shown that the use of bulky ligands, such as t-Bu-XPhos, can facilitate C–F bond formation. For C–CF₃ bond formation, similar challenges exist, including the high electronegativity of the trifluoromethyl group and the difficulty of forming stable metal-trifluoromethyl complexes. Despite these challenges, transition-metal-catalyzed reactions have enabled the synthesis of complex trifluoromethylated compounds. In addition to transition-metal catalysis, organocatalytic methods have also been developed for the selective formation of C–F and C–CF₃ bonds. These methods often involve the use of chiral catalysts to achieve enantioselectivity. Overall, the development of new catalysts and reaction conditions has significantly advanced the field of fluorination chemistry, making it more efficient and practical for the synthesis of complex fluorinated molecules. Future research will focus on improving the efficiency and selectivity of these reactions, as well as expanding their applicability to a wider range of substrates.