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1,4-Diiodobenzene is used in Suzuki reaction. It is used as a precursor in the preparation of martinellic acid and 1,4-bis(p-R-phenylethynyl)benzenes. Further, it is employed in the preparation of 1,4-diiodo-2,5-didodecylbenzene , which is a starting reagent for the synthesis of oligo(1,4-phenylene ethynylene). It is also used in human and animal nutrition products including antiseptics and disinfectants. In addition to this, it used in polarizing films for liquid crystal display chemicals.
Undergoes Pd-catalyzed carbonylative cross-coupling with arylboronic acids, e.g. 4-Methylbenzeneboronic acid, A13347, to give diketones; (cf. trans-Dichlorobis(triphenylphosphine)palladium(II), 10491 and Appendix 5): Tetrahedron Lett., 34, 7595 (1993); J. Org. Chem., 63, 4726 (1998):
Kim, B.; Park, N.; Lee, S. M.; Kim, H. J.; Son, S. U. Insights into the low surface area of conjugated microporous polymers and methodological suggestion for the enhancement of porosity. Polym. Chem. 2015, 6 (42), 7363-7367.
Liu, M.; Seino, Y.; Chen, D.; Inomata, S.; Su, S. J.; Sasabe, H.; Kido, J. Blue thermally activated delayed fluorescence materials based on bis(phenylsulfonyl)benzene derivatives. Chem. Commun. 2015, 51 (91), 16353-16356.
Hazard Statements: H315-H319-H335
Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statements: P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P337+P313-P362-P501c
Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant