Phenyl vinyl sulfoxide is primarily utilized in organic synthesis as a versatile intermediate. It is commonly employed in the preparation of various sulfur-containing compounds, which are essential in the development of pharmaceuticals and agrochemicals. Its unique structure allows it to participate in cycloaddition reactions, making it valuable in the construction of complex molecular frameworks. Additionally, it serves as a precursor in the synthesis of chiral sulfoxides, which are crucial in asymmetric catalysis. This compound is also investigated for its potential in material science, particularly in the design of polymers with specific optical or electronic properties.