4.4- Dihydroxydiphenyl sulfone

In addition, the crude product contains 20-30% of the isomer 2,4-dihydroxydiphenyl sulfone and... 

N,N-Dimethylacetamide (DMAc), 4-fluorobenzoic acid, 4-fluorobenzoyl chloride, aluminum chloride, 1 -bromonaphthalene, nitrobenzene, ferric chloride, dimethyl sulfone, 4,4 -dihydroxybiphenyl (DHB), and potassium carbonate were obtained from Aldrich and used without purification. 4,4-(Hexafluoroiso-propylidiene)-diphenol (6F-BPA), 9,9-bis(4-hydroxyphenyl)fluorene (HPF), and l,l-bis(4-hydroxyphenyl)-l-phenylethane (Bisphenol AP) were obtained from Ken Seika Corporation and used without purification. 4,4 -Dihydroxydiphenyl sulfone (DHDS) was obtained from Nachem Incorporated and used without purification. 

Dichloro-5,6-dicyano-l,4-benzoquinone p,p -Diaminodiphenyl sulfone Dihydroxydiphenyl sulfone Dodecenylsuccinic anhydride... 

NOTE Other phase transfer catalysts were evaluated and all were approximately equally as effective (PT-catalysts ranged from tetraalkylammonium halides to polyethylene glycols). In the same manner the bispropargyl ether of 4,4 -dihydroxydiphenyl sulfone (same as from preparation 6.2) gave a 96.2% yield, m.p. 184-186°C of light tan colored crystals. The NMR was consistent with its structure. 

Bis-(4-hydroxyphenyl) sulfone is also addressed as 4,4 -dihydroxydiphenyl sulfone, or 4,4 -bisphenol S. It is of great conunereial interest for the preparation of PES. It can be prepared by reacting phenol with sulfurie acid, without using a solvent. Sueh proeesses give a erude product with 60-70% bis-(4-hydroxyphenyl)-sulfone. 

Poly(biphenyl ether sulfone)s can be prepared, with carbonates or with the alkali metal hydroxides as activators. In the carbonate method, the poly(sulfone)s are prepared by the reaction of equimolar amounts of dihydroxy aromatic compounds and dihalodiaryl sulfones. Dihydroxy aromatic compounds are BP, 4,4 -dihydroxydiphenyl sulfone, hydroquinone, bisphenol A. Dihalodiaryl sulfones, are 4,4 -dichlorodiphenyl sulfone or 4,4 -difluorodiphenyl sulfone. 0.5 to about 1.0 mole of an alkali metal carbonate per mole of hydroxyl group is added. The condensation is conducted as azeotropic condensation, at a temperature of 210-300°C up to 15 hours. 

Dihydroxydiphenyl sulfone Hydroxyaryl substituted spirodUactams, e.g., l,6-Di(3-hydroxyphenyl)-l,6-diazaspiro[4.4]- ... 

Hydroquinone (HQ) is prepared by the oxidation of phenol. Resorcinol can be prepared by the oxidation of m-diisopropylbenzene. Biphenol is prepared by the oxidative dimerization of 2,6-di-ten-butyl phenol and subsequent debutylation. 4,4 -Dihydroxydiphenyl sulfone can be prepared by reacting phenol with sulfuric acid. Phenolphthalein can be obtained... 

Bis (4-hydroxyphenyl) sulfone Bis (p-hydroxyphenyl) sulfone. See 4,4 -Dihydroxydiphenyl sulfone... 

Bis (phenethyloxy) ethane. See Acetaldehyde diphenethyl acetal 4,4 -Bisphenol A. See Bisphenol A 4,4 -Bisphenol S. See4,4 -Dihydroxydiphenyl sulfone Bisphenol A... 

B.P. Pyro Type K B.P. Pyro . See Sodium acid pyrophosphate BPS 319. See Phosphonic acid BPS 1. See4,4 -Dihydroxydiphenyl sulfone BR 662. See Phenolic resin BR. See Polybutadiene Brahmanol 3/071120, Brahmanol F 3/071130. See Butanol, 2-methyl-4-(2,2,3-trimethyl-3-cyclopentenyl)-Brain extract... 

Dihydroxydiphenyldimethylmethane diglycidyl ether. See Bisphenol A diglycidyl ether 4,4 -Dihydroxydiphenyl ketone. See 4,4 -Dihydroxybenzophenone 2,2-(4,4-Dihydroxydiphenyl) propane p,p -Dihydroxydiphenylpropane. See Bisphenol A Dihydroxydiphenylsilane. See Diphenylsilanediol 4,4 -Dihydroxydiphenyl sulfone CAS 80-09-1 EINECS/ELINCS 201-250-5 Synonyms Bis (4-hydroxyphenyl) sulfone Bis (p-hydroxyphenyl) sulfone 4,4 -Bisphenol S Bisphenol S BPS 1 p,p -Dihydroxydiphenyl sulfone 4-Hydroxyphenyl sulfone Phenol, 4,4 -sulfonylbis- Phenol, 4,4 -sulfonyldi- SDP 1,1 -Sulfonylbis (4-hydroxybenzene) Sulfonyl bisphenol 4,4 -Sulfonylbisphenol 4,4 -Sulfonyldiphenol... 

SDBS. See. Sodium dodecylbenzenesulfonate SDDC. See Sodium dimethyidithiocarbamate SDEC. See. Sodium diethyidithiocarbamate SDIC. See Sodium dichloroisocyanurate SDP. See 4,4 -Dihydroxydiphenyl sulfone SDPA. See Styrenated diphenylamine SDS. See Sodium disilicate Sodium lauryl sulfate... 

See 4,4 -Diaminodiphenyl sulfone 3,3 -Sulfonyldi-(benzenesulfonyl hydrazine). SeeDiphenyl-sulfon-3,3 -disulfohydrazide 4,4 -Sulfonyldiphenol. See 4,4 -Dihydroxydiphenyl sulfone Sulfooctadecanoic acid, sodium salt. See Sodium oleic sulfonate 18-Sulfooleic acid, compd. with 2,2, 2"-nitrilotriethanol (1 1). See TEA-oleyl sulfate 9-(Sulfooxy) octadecanoate acid, disodium salt. See Sodium oleic sulfate 1-p-Sulfophenylazo-2-hydroxynaphthalene-6-sulfonate, disodium salt. See FD C Yellow No. 6... 

Ammonium persulfate Ammonium silicofluoride Ammonium thiocyanate p-Anisaldehyde Barium Barium cyanide Cadmium iodide Cadmium sulfate Chloroplatinic acid Copper nitrate (ic) Copper oxide (ic) Copper oxide (ous) 4,4 -Dihydroxydiphenyl sulfone Dimethylamine Glycolic acid... 

Diethyl succinate 1,1-Difluoroethane Dihydroxyacetone 4,4 -Dihydroxydiphenyl sulfone Diisobutylene... 

Aniline m-Cresol o-Cresol p-Cresol 4,4 -Dihydroxydiphenyl sulfone Formaldehyde p-Nonyl phenol phenolphthalein mfg. 

Bis-(4-hydroxyphenyl)-sulfone is also addressed as 4,4 -dihydroxydiphenyl sulfone, or 4,4 -bisphenol S. 

Sulfonated multi-block PAES copolymers containing phenolphthalein anilide as a cardo group have been prepared [95], The hydrophobic precursor oligomer was prepared using 4,4 -dihydroxydiphenyl sulfone and 4,4 -dichlorodiphenyl sulfone. The hydrophilic oligomer was prepared from disodium-3,3 -disulfonate-4,4 -dicldorodiphenyl sulfone. Sulfonic acid group is added by a post-sulfonahon process. 

Pabst G, Kast J. Semi-continuous method for producing 4,4 -dihydroxydiphenyl sulfone. US patent 6700020, assigned to BASF Aktiengesellschaft, Ludwigshafen, DE 2004. 

Dihydroxydiphenyl sulfone can be prepared by reacting phenol with sulfuric acid. Phenolphthalein can be obtained from phthalic anhydride and phenol in the presence of acid cation exchange resins and aryl phosphites. 

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