主题词：Catalytic C–H Functionalization Methods; Organic Chemistry Cycloaddition Reactions; Synthesis and biological activity; Oxidative Organic Chemistry Reactions; Chemical Synthesis and Analysis; Free Radicals and Antioxidants; Click Chemistry and Applications; Synthesis and Characterization of Heterocyclic Compounds; Chemical Synthesis and Reactions; Molecular Sensors and Ion Detection; Sulfur-Based Synthesis Techniques; Synthesis and Catalytic Reactions; Synthesis and Biological Evaluation; Catalytic Cross-Coupling Reactions; Radical Photochemical Reactions; Chemical Reaction Mechanisms; Asymmetric Synthesis and Catalysis; Multicomponent Synthesis of Heterocycles; Fluorine in Organic Chemistry; Synthetic Organic Chemistry Methods; Organophosphorus compounds synthesis; Chemical synthesis and alkaloids; Luminescence and Fluorescent Materials; Asymmetric Hydrogenation and Catalysis; Synthesis of heterocyclic compounds