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Fluorene is used in the preparation of dyes such as 2,7-diiodofluorene, 2-aminofluorene and 3,6-bis-(dimethylamino)fluorine as well as resins. It acts as a precursor to other fluorene compounds and to prepare fluorenone. It is utilized in the study of the extraction of specific semiconducting single-wall carbon nanotubes. Its polymer, polyfluorene finds application in electrically conductive and electroluminescent as well as in solar cells. In addition to this, it is used as a luminophore inorganic light-emitting diodes
Michael addition at C-9 to ɑß-unsaturated ketones or esters occurs using TBAF as base; reaction is very slow using classical bases: Synthesis, 164 (1984).
Pietropaolo, A.; Wang, Y.; Nakano, T. Predicting the Switchable Screw Sense in Fluorene-Based Polymers. Angew. Chem. Int. Ed. 2015, 127 (9), 2726-2730.
Chen, Z.; Liang, J.; Han, X.; Yin, J.; Yu, G. A.; Liu, S. H. Fluorene-based novel highly emissive fluorescent molecules with aggregate fluorescence change or aggregation-induced emission enhancement characteristics. Dyes Pigm. 2015, 112, 59-66.