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1483-72-3 - Diphenyliodonium chloride, 98+% - A15149 - Alfa Aesar

A15149 Diphenyliodonium chloride, 98+%

CAS Number

Size Price ($) Quantity Availability
10g 72.10
50g 285.30
250g 1003.20
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Diphenyliodonium chloride, 98+%


Chemical Properties

Formula Weight
Melting point
ca 230° dec.
Light Sensitive
Soluble in water and methanol.


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.


Light sensitive. Incompatible with strong oxidizing agents.

Literature References

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.

GHS Hazard and Precautionary Statements

Hazard Statements: H301-H315-H319-H335

Toxic if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P280-P301+P310-P305+P351+P338-P304+P340-P362-P312-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. 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. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

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