主题词：Chemical Synthesis and Reactions; Synthesis and biological activity; Chemical Synthesis and Analysis; Multicomponent Synthesis of Heterocycles; Synthesis and Characterization of Heterocyclic Compounds; Asymmetric Hydrogenation and Catalysis; Inorganic and Organometallic Chemistry; Asymmetric Synthesis and Catalysis; Synthesis and Biological Evaluation; Click Chemistry and Applications; Catalytic C–H Functionalization Methods; Carbohydrate Chemistry and Synthesis; Enzyme Catalysis and Immobilization; Analytical Chemistry and Chromatography; Catalytic Cross-Coupling Reactions; Sulfur-Based Synthesis Techniques; Diverse Scientific and Economic Studies; Synthetic Organic Chemistry Methods; Chemistry and Chemical Engineering; Organophosphorus compounds synthesis; Synthesis and Catalytic Reactions; Nanomaterials for catalytic reactions; Chemical synthesis and alkaloids; Synthesis and Reactions of Organic Compounds; Microwave-Assisted Synthesis and Applications