Process for the preparation of 4-hydroxybiphenyl

Details Process for the preparation of 4-hydroxybiphenyl Process for the preparation of 4-hydroxybiphenyl

1997-06-12

1998-12-08

Shippen, Michael L.

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

Organic compounds

Oxygen containing

568748, C07C 3912

Patent

active

058472347

ABSTRACT:
4-Hydroxybiphenyl is obtained in non-thixotropic form if a reaction mixture which is obtained by alkaline hydrolysis of biphenyl-4-sulfonic acid and contains 4-hydroxybiphenyl is heated at elevated pressure at above 115.degree. C. and at a pH from 0 to below 6.5.

REFERENCES:
patent: 2368361 (1945-01-01), Jenkins
patent: 4243822 (1981-01-01), Demier et al.
patent: 4467123 (1984-08-01), Mayer et al.

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