Fluorenes are a class of organic compounds characterized by a polyaromatic structure with multiple fused benzene rings, typically containing one or more fluorene units. These compounds find applications in various fields due to their unique properties. In the field of materials science, fluorenes are extensively used as building blocks for the synthesis of polymers and small molecules, which exhibit excellent photoluminescent characteristics, making them ideal candidates for organic light-emitting diodes (OLEDs). Additionally, fluorene derivatives have attracted significant interest in the development of highly efficient solar cells. Fluorenes also play a crucial role as solvents in organic synthesis, owing to their non-polar nature and ability to dissolve a wide range of organic materials. The purity and reactivity of fluorenes are critical for achieving desired outcomes in these applications.