Process for isolating 4,4-dihydroxydiphenyl sulfone from a mixtu

Details Process for isolating 4,4-dihydroxydiphenyl sulfone from a mixtu Process for isolating 4,4-dihydroxydiphenyl sulfone from a mixtu

1981-09-09

1983-05-03

Daus, Donald G.

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

Organic compounds

Sulfur containing

C07C14710

Patent

active

043821472

ABSTRACT:
4,4'-Dihydroxydiphenyl sulfone is isolated from a mixture of dihydroxydiphenyl sulfone isomers by heat dissolving the mixture in phenol and then cooling the resulting solution thereby allowing 4,4'-dihydroxydiphenyl sulfone to precipitate as an adduct with phenol.

REFERENCES:
patent: 3277183 (1966-10-01), Heller et al.
patent: 3297766 (1967-01-01), Bradley et al.
patent: 4162270 (1979-07-01), Ogata et al.
J. Hinkel et al., J. Chem. Soc., pp. 2854-2856, (1949), 4:4'- and 2:4'-Dihydroxydiphenyl Sulfones.

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