Catalytic hydroxylation of phenols/phenol ethers

Details Catalytic hydroxylation of phenols/phenol ethers Catalytic hydroxylation of phenols/phenol ethers

1990-07-06

1992-03-17

Lone, Werren B.

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

Organic compounds

Oxygen containing

568651, 568652, 568653, 568741, 568803, C07C 3760

Patent

active

050970780

ABSTRACT:
The phenols and phenol ethers are hydroxylated by reacting such phenols/phenol ethers with hydrogen peroxide, in the presence of (a) a catalytically effective amount of an alkali metal or alkaline earth metal salt of at least one protonic acid having a pKa in water of less than -0.1, and (b) an effective amount of at least one phosphorus oxyacid.

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patent: 4045496 (1977-08-01), Seifert et al.
patent: 4053523 (1977-10-01), Seifert et al.
patent: 4078006 (1978-03-01), Umemura et al.
patent: 4208536 (1980-06-01), Costantini et al.
patent: 4223165 (1980-09-01), Jouffret
patent: 4301307 (1981-11-01), Jouffret
"Methoden der Organischen Chemie", Eugen Muller, 1976.

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