Diphenyliodonium chloride is used as a reagent for electrophilic phenylation . It is used as a reactant for copper-catalyzed cross coupling reactions of purinesband arylation of anilines. It is involved in the preparation of acetylenic arylselenide and (arylmethylene)oxindoles. Further, it is employed in the preparation of aryl alkynes through Sonogashira coupling reactions.
Diphenyliodonium salts are widely used as photoinitiators for cationic polymerization: Macromolecules, 10, 1307 (1977); review: Adv. Polym. Sci., 62, 1 (1982).
They are also useful phenylating agents for a variety of anions:
C-Phenylation of the anions derived from malonic esters, ß-keto esters and arylacetic esters: J. Org. Chem., 28, 714 (1963). Arylation of ketones: J. Org. Chem., 31, 4315 (1966). ß-Diketones can be arylated either as monoanions: Tetrahedron, 8, 49 (1960); J. Am. Chem. Soc., 84, 2819 (1962), or as dianions: J. Org. Chem., 29, 3514 (1964), where reaction occurs at the more reactive (terminal) carbon; see, e.g. (1-phenylation of 2,4-pentanedione): Org. Synth. Coll., 6, 928 (1988). For arylation of Grignard reagents and cyanide ion, see: J. Am. Chem. Soc., 75, 2708 (1953), and of nitro-compounds: J. Org. Chem., 28, 1424 (1963); 29, 2108 (1964). Other reactions reported include: O-Phenylation of aryloxides: J. Chem. Soc., 2645 (1961), alkoxides and oximes: J. Org. Chem., 40, 3010 (1975); 36, 1780 (1971); S-Phenylation of sulfides: J. Org. Chem., 36, 233 (1971); N-Phenylation of heterocycles: Tetrahedron, 1, 145 (1957); J. Org. Chem., 39, 2710 (1974).
For reviews of polyvalent iodine compounds in organic synthesis, see: Synthesis, 709 (1984); Chem. Rev., 96, 1123 (1996). For monographs, see: A. Varvoglis, The Organic Chemistry of Polycoordinated Iodine, VCH, N.Y. (1992); A. Varvoglis, Hypervalent Iodine in Organic Synthesis, Academic Press, San Diego (1996).
Kabatc, J.; Kostrzewska, K.; Dobosz, R.; Orzeł, Ł. Double role of squarylium dye: Fluorescence probe for biomolecule determination and photosensitizer in dyeing photoinitiating system. J. Mol. Liq. 2015, 212, 196-202.
Cook, W. D.; Chen, F. Enhanced visible radiation photopolymerization of dimethacrylates with the three component thioxanthone (CPTXO)-amine-iodonium salt system. Polym. Chem. 2015, 6 (8), 1325-1338.
Gefahrenhinweise (EU): H301-H315-H319-H335
Toxic if swallowed. 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 SWALLOWED: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.