Used in organic synthesis as a versatile reagent for the preparation of various complex molecules. It is particularly valuable in Wittig reactions, where it facilitates the formation of alkenes by reacting with aldehydes or ketones. This compound is also employed in the synthesis of α,β-unsaturated esters, which are important intermediates in the production of pharmaceuticals, agrochemicals, and fine chemicals. Additionally, it serves as a key building block in the development of conjugated systems for materials science applications, including organic electronics and photovoltaics. Its ability to introduce functional groups makes it a useful tool in the design and synthesis of novel compounds with potential biological activity.