Preparation of 4,4'-dihydroxybiphenyl

Details Preparation of 4,4'-dihydroxybiphenyl Preparation of 4,4'-dihydroxybiphenyl

1989-01-23

1990-05-01

Lone, Werren B.

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

Organic compounds

Oxygen containing

568738, 568769, 568795, C07C 3914, C07C 3704

Patent

active

049220314

ABSTRACT:
4,4'-dihydroxybiphenyl is prepared by treating biphenyl-4,4'-disulfonic acid or one of its alkali metal salts in an alkali metal hydroxide melt by a process in which the treatment is carried out in a melt which contains from 7 to 14 moles of potassium hydroxide and from 0 to 8 moles of sodium hydroxide, based in each case on 1 mole of biphenyl-4,4'-disulfonic acid, in the presence of an alkali metal carbonate at from 280.degree. to 360.degree. C.

REFERENCES:
patent: 2407045 (1945-09-01), Tyrer
patent: 2773908 (1956-12-01), Cake
patent: 2856437 (1958-10-01), Cake
patent: 4243822 (1981-06-01), Demler et al.
patent: 4465878 (1984-08-01), Hashimoto
patent: 4467123 (1984-08-01), Mayer et al.
patent: 4633024 (1986-12-01), Ueno et al.
Helvetica Chimica Acta vol. 14, 751-779 (1931).
J Chem. Soc. Perkin II, 1560 (1977).
Inoue et al., "Chemical Abstract", vol. 92; 41563d (1980).

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