sulfone

[′səl‚fōn]

(organic chemistry)

R₂SO₂(or RSOOR) A compound formed by the oxidation of sulfides, for example, ethyl sulfone, C₄H₁₀SO₂, from ethyl sulfide, C₄H₁₀S; the use of sulfones, particularly 4,4′-sulfonyldianiline (dapsone) in the treatment of leprosy leads to apparent improvement; relapses associated with sulfone-resistant strains have been encountered.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Sulfone

any of several organosulfur compounds containing the

group bonded to two organic radicals. Sulfones are colorless and very stable crystalline substances; for example, diphenylsulfone, (C₆H₅)₂SO₂, melts at 128°C and boils at 379°C. Both aliphatic and aromatic sulfones are obtained by oxidation of organic sulfides; aromatic sulfones are also obtained by means of the Friedel-Crafts reaction.

Some substituted sulfones are used in medicine—for example, diaphenylsulfone (4,4’-diaminodiphenylsulfone) is used in the treatment of leprosy. Polyarylenesulfones are used for the production of packages for foodstuffs and electrotechnical parts.

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References in periodicals archive

Monomer Trade name Chemical formulation DGEBA DER 331 [formula not reproducible] BE F2200 [formula not reproducible] Triethylenetetramine TETA [formula not reproducible] Polyetheramine JEFFAMINE T-403 [formula not reproducible] (PEA4) Diaminodiphenyl DDS [formula not reproducible] sulfone Monomer Mw F DGEBA 374 2 BE 696 2 Triethylenetetramine 146 6 Polyetheramine 226 6 Diaminodiphenyl 248 4 sulfone F, functionality; Mw, molar weight (g/mol).

Toughening of Epoxy Systems by Brominated Epoxy

"Solvay's expansion firms up our leading position in sulfone polymers which benefit from booming demand in fast-growing industries such as water purification and health care," says Augusto Di Donfrancesco, president of Solvays special polymers global business unit.

Solvay Expands Global Sulfone Polymers Production in India, U.S

The combination of features such as mechanically tough and rigid, transparent, resistance against hydrolysis and against acidic attacks and melt processing at temperatures of up to 400[degrees]C, coupled with ease of fabrication, has enabled sulfone polymers to be used in a wide and increasingly diversified range of applications.

Auto, Aerospace and Filtration Membranes Drive Global Sulfone Polymers Market to 69k MTs by 2022

The structure proposed in this research shows effective catalytic activity for the environmental compatible oxidation of various sulfides to both types of sulfoxide and sulfone at room temperature.

Production of New Nanocatalyst in Iran with Application in Pharmaceutical, Oil Industries

Arvind OG says it has installed custom-built machines specifically designed to achieve Japanese quality standards and capable of handling various fibers such as M-aramid, homopolymer acrylic, poly-phenelyene sulfone (PPS), polyimide polypropylene and polyester.

Arvind OG enters nonwovens market

Arvind OG has installed custom-built machines specifically designed to achieve Japanese quality standards and capable of handling various fibers such as M-Aramid, Homopolymer Acrylic, Poly-phenelyene Sulfone (PPS), Polyimide Polypropylene and Polyester.

Arvind OG Nonwovens goes on stream

Allowable liver and muscle concentrations of fenbendazole sulfone in turkeys are 6 and 2 ppm, respectively, with a 6-hour feed withdrawal.

Avian Dis.: safety of fenbendazole in Chinese ring-necked pheasants (Phasianus colchicus)

Poly(aryl ether ketone)s (PAEKs) and poly(aryl ether sulfone)s (PAESs) are two important commercial poly(aryl ether)s.

Synthesis and preliminary properties of novel poly(aryl ether)s containing [beta]-naphthalene pendant group