主题词：Synthesis and biological activity; Synthesis and Characterization of Heterocyclic Compounds; Organophosphorus compounds synthesis; Synthesis and Reactivity of Sulfur-Containing Compounds; Synthesis and Reactions of Organic Compounds; Metal complexes synthesis and properties; Porphyrin and Phthalocyanine Chemistry; Synthesis and Biological Evaluation; Phosphorus compounds and reactions; Inorganic and Organometallic Chemistry; Chemical Thermodynamics and Molecular Structure; Chemical Reaction Mechanisms; Analytical Chemistry and Chromatography; Chemical Synthesis and Reactions; Fluorine in Organic Chemistry; Chemical Synthesis and Analysis; Free Radicals and Antioxidants; Synthesis of heterocyclic compounds; Molecular Sensors and Ion Detection; Multicomponent Synthesis of Heterocycles; Structural and Chemical Analysis of Organic and Inorganic Compounds; Thermal and Kinetic Analysis; Synthesis and characterization of novel inorganic/organometallic compounds; Organometallic Compounds Synthesis and Characterization; Synthesis of Organic Compounds