Hydroxylation of phenols/phenol ethers

Details Hydroxylation of phenols/phenol ethers Hydroxylation of phenols/phenol ethers

1990-12-05

1993-09-14

Cintins, Marianne M.

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

Organic compounds

Oxygen containing

568716, 568730, 568747, 568766, 568768, 568780, 568784, 568798, 568771, 568803, 568763, C07C 4126, C07C 3760

Patent

active

052450864

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

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patent: 4208536 (1980-06-01), Costantini et al.
patent: 4223165 (1980-09-01), Jouffret
patent: 4301307 (1981-11-01), Jouffret
patent: 5097078 (1992-03-01), Costantini et al.

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