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1,4-Dibromo-2,5-difluorobenzene has been used in the preparation of 1,2,4,5-tetrakis(phosphino)-3,6-difluorobenzenes and poly(2,5-difluoro-2?,5?-didodecyl-4,4?-biphenylylene.
Kongprakaiwoot N, et al. New synthetic route to polyphosphine ligands bearing 1,2,4,5-tetrakis (phosphino) benzene framework: structural characterizations of 1, 4-(PPh2)2-2, 5-(PR2)2-C6F2(R= Ph, iPr, Et). J. Organomet. Chem. 2004, 689 (21), 3350-56.
Kowitz C; and Wegner Gl. Functionalized poly-and oligo-phenylenes: Variations on the Suzuki cross-coupling of functionalized aryl dibromides with the 1, 3-propanediol diester of 2, 5-dialkyl-1, 4-phenylenediboronic acid. Tetrahedron. 1997, 53 (45), 15553-74.
For discussion of reaction with n-BuLi, including formation of dibenzyne, see: Org. Synth., 75, 201 (1997); see also 1,2,4,5-Tetrabromobenzene, L13539.
Gefahrenhinweise (EU): H315-H319-H335
Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.