Process for preparing diarylsulfones

Details Process for preparing diarylsulfones Process for preparing diarylsulfones

1987-07-07

1988-10-18

Ceperley, Mary E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfur containing

564430, 568 30, 568 32, 568 34, C07C14710

Patent

active

047789328

ABSTRACT:
In preparing a diarylsulfone by condensing sulfuric acid or an aromatic sulfonic acid with an aromatic compound having at least one replaceable hydrogen atom on the aromatic ring, the process of the present invention is characterized in that the condensation reaction is carried out in the presence of at least one catalyst selected from the group consisting of a tungstic acid, molybdic acid and heteropoly acid thereof.

REFERENCES:
patent: 3501532 (1970-03-01), Minor et al.
patent: 3729517 (1973-04-01), Bracke
patent: 4089904 (1978-05-01), Cisney et al.

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