Process for the preparation of 4,4'-dihydroxydiphenyl sulfone

Details Process for the preparation of 4,4'-dihydroxydiphenyl sulfone Process for the preparation of 4,4'-dihydroxydiphenyl sulfone

1993-08-02

1994-02-22

Cintins, Marianne M.

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

Organic compounds

Sulfur containing

C07C31500

Patent

active

052889130

ABSTRACT:
Process for the preparation of 4,4'-dihydroxydiphenyl sulfone in a high yield and high purity by reaction of phenol with a sulfonating agent in a chlorinated aromatic, in which phenol is reacted with a sulfonating agent in ortho-, meta- or para-chlorotoluene or in any desired mixture of these isomeric chlorotoluenes as the inert solvent, at temperatures of from about 100.degree. to about 200.degree. C.

REFERENCES:
patent: 4162270 (1979-07-01), Ogata et al.
patent: 5041677 (1991-08-01), Cooker et al.

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