Preparation of diaryl sulfones

Details Preparation of diaryl sulfones Preparation of diaryl sulfones

1987-09-21

1989-04-18

Ceperley, Mary E.

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

Organic compounds

Sulfur containing

C07C14706

Patent

active

048229164

ABSTRACT:
Diaryl sulfones are formed in a two-stage procedure. The first involves the reaction of an aryl sulfonic acid with an aryl reagent containing active hydrogen while by-product water is removed azeotropically. In the second stage, which contains unreacted sulfonic acid, is treated with a sulfone condensing agent and additional aryl reagent to react additional, unreacted aryl sulfonic acid from the first stage.

REFERENCES:
patent: 3125604 (1964-03-01), Robbins
patent: 3501532 (1970-03-01), Minor et al.
patent: 3579590 (1971-05-01), Davis
patent: 3673259 (1972-06-01), Rosin et al.
patent: 3729517 (1973-04-01), Bracke
patent: 3855312 (1974-12-01), Horner
patent: 4554381 (1985-11-01), Desbois
patent: 4558161 (1985-12-01), Morita et al.
T. Kurano et al., Chemical Abstracts, vol. 70, No. 57419t (1969), Diaryl Sulfones.

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