1,4-Diiodooctafluorobutane丨CAS 375-50-8

1,4-Diiodooctafluorobutane is primarily used as a fluorinated building block in organic synthesis, polymer chemistry, and materials science. Its structure, featuring terminal iodides on a perfluorinated carbon chain, allows it to undergo nucleophilic substitution, cross-coupling, and other functionalization reactions to introduce perfluoroalkyl motifs into molecules. It is commonly employed in the synthesis of fluorinated surfactants, specialty polymers, liquid-repellent coatings, and fluorinated intermediates for pharmaceuticals and agrochemicals. Additionally, 1,4-Diiodooctafluorobutane serves as a precursor in the preparation of functionalized perfluoroalkyl compounds used in liquid crystals, electrochemical devices, and as reagents for radiolabeling or tagging in materials research. Its symmetrical diiodide structure provides versatility for constructing symmetrical or bifunctional fluorinated molecules.

The compound offers significant benefits due to the combination of high fluorine content and reactive iodide termini. The perfluorinated backbone imparts excellent chemical, thermal, and oxidative stability to molecules derived from it, as well as hydrophobicity and lipophobicity, which are valuable in coatings, surfactants, and specialty polymers. The terminal iodides are highly reactive, enabling efficient and selective functionalization under mild conditions, which facilitates the introduction of complex or sensitive groups. This reactivity, combined with the stability of the fluorinated chain, allows chemists to synthesize high-performance materials and fine chemicals with enhanced durability, low surface energy, and tailored properties. Its symmetrical design also supports scalable and reproducible synthesis of bifunctional fluorinated intermediates.