Process for the preparation of hydroxybiphenyls

Details Process for the preparation of hydroxybiphenyls Process for the preparation of hydroxybiphenyls

1988-02-10

1990-01-02

Lone, Werren B.

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

Organic compounds

Oxygen containing

568722, 568744, 568770, 568796, 568717, C07C 3912, C07C 3702

Patent

active

048914525

ABSTRACT:
A process for preparing hydroxybiphenyls. A bromobiphenyl is contacted with a base in aqueous liquid phase at a temperature less than or equal to 230.degree. C. in the presence of a copper-based catalyst. The hydroxyl ion concentration of base ranges from 0.1 to about 1.6 molar equivalents per liter. At temperatures less than 215.degree. C., a cocatalyst is preferably added.

REFERENCES:
patent: 3752878 (1973-08-01), Kehl et al.
patent: 4001340 (1977-01-01), Smith
patent: 4340768 (1982-07-01), Jinbo et al.
patent: 4475000 (1984-10-01), Pendery et al.

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