22287-56-5Relevant academic research and scientific papers
PROCESS FOR THE MANUFACTURE OF DIHALODIPHENYLSULFONES
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Page/Page column 20; 21, (2012/11/07)
A process for the preparation of dihalodiphenylsulfones_such as 4,4'-dichlorodiphenyl sulfone or 4,4'-bis-(4-chlorophenylsulfonyl)biphenyl with high regioselectivity, at low temperature and in the absence of toxic reagents by reacting together at least one acid, at least one fluorinated anhydride and at least one halobenzene. The invented process is particularly suited for the manufacture of 4,4'-dichlorodiphenyl sulfone.
PROCESS FOR THE MANUFACTURE OF DIHALODIPHENYLSULFONES STARTING FROM ORGANIC ACIDS
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Page/Page column 16; 17, (2012/11/07)
A process for the preparation of dihalodiphenylsulfones_such as 4,4'-dichlorodiphenyl sulfone or 4,4'-bis-(4-chlorophenylsulfonyl)biphenyl with high regioselectivity, at low temperature and in the absence of toxic reagents by reacting together at least one acid, sulfur trioxide and at least one halobenzene. The invented process is particularly suited for the manufacture of 4,4'-dichlorodiphenyl sulfone.
Macrocyclic aromatic polysulfones and sulfide-sulfones: Synthesis and structural characterisation of molecular pentagons and rectangles
Ben-Haida, Abderrazak,Colquhoun, Howard M.,Hodge, Philip,Raftery, James,White, Andrew J.P.,Williams, David J.
scheme or table, p. 5229 - 5235 (2010/04/03)
Cyclo-condensation of arylenedithiols with bis(4-chlorophenylenesulfone)s under pseudo-high-dilution conditions affords macrocyclic aromatic sulfide-sulfones which are readily oxidised to all-sulfone-linked macrocycles. The cyclic pentamer of poly(1,4-phe
Bis(4-hydroxyphenyl sulfonylphenyl) bisphenyl disulfones and useful resins based thereon
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, (2008/06/13)
The present invention relates to the novel monomers generically identified as bis(4-hydroxyphenyl sulfonylphenyl) biphenyl disulfones, to a process for their production and to their use in the preparation of polycarbonates, polyurethanes, polyesters, polysulfones and polyethers.
