主题词：Multicomponent Synthesis of Heterocycles; Synthesis and biological activity; Chemical Synthesis and Reactions; Synthesis and Characterization of Heterocyclic Compounds; Inorganic and Organometallic Chemistry; Synthesis of Organic Compounds; Synthesis and Biological Evaluation; Microwave-Assisted Synthesis and Applications; Nanomaterials for catalytic reactions; Oxidative Organic Chemistry Reactions; Synthesis of Indole Derivatives; Catalytic Processes in Materials Science; Sulfur-Based Synthesis Techniques; Synthesis of Tetrazole Derivatives; Chemical Synthesis and Analysis; Catalysis and Hydrodesulfurization Studies; Catalysis and Oxidation Reactions; Chemistry and Chemical Engineering; TiO2 Photocatalysis and Solar Cells; Ionic liquids properties and applications; Advanced Photocatalysis Techniques; Mesoporous Materials and Catalysis; Click Chemistry and Applications; Quinazolinone synthesis and applications; Electrochemical sensors and biosensors