Process for producing mixture of dihydroxydiphenylsulfone isomers

   
   

The present invention provides a process for producing a mixture of 4,4'- and 2,4'-dihydroxydiphenylsulfones comprising heating trihydroxytriphenyldisulfone or a mixture of dihydroxydiphenylsulfone isomers containing trihydroxytriphenyldisulfone in the presence of phenol and an acid catalyst.

La actual invención proporciona un proceso para producir una mezcla de 4,4' - y de 2,4'-dihydroxydiphenylsulfones que abarca trihydroxytriphenyldisulfone de la calefacción o una mezcla de los isómeros del dihydroxydiphenylsulfone que contienen trihydroxytriphenyldisulfone en la presencia del fenol y de un catalizador ácido.

 
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