Polyhydroxy aromatic compounds from alkali metal hydroxide and m

Details Polyhydroxy aromatic compounds from alkali metal hydroxide and m Polyhydroxy aromatic compounds from alkali metal hydroxide and m

1983-12-07

1985-08-06

Lone, Werren B.

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

Organic compounds

Oxygen containing

568716, C07C 3700, C07C 3910

Patent

active

045337659

ABSTRACT:
This invention pertains to a process for preparing polyhydroxy aromatic compounds by reacting an alkali metal hydroxide with a hydroxymononuclear aromatic compound, e.g., phenol or resorcinol. The reaction is carried out in the presence of a metallic hydrogenation catalyst, suitably nickel, or cobalt, the metal being present in an amount sufficient for catalyzing the reaction. The polyhydroxy aromatic compound is then formed by adding a protonating agent to the reaction product, with the protonating agent liberating the hydroxy compound from the salt.

REFERENCES:
patent: 2736752 (1956-02-01), Hoffmann et al.
patent: 3230266 (1983-12-01), Baldoni et al.
patent: 3520940 (1970-07-01), Smith
patent: 4172960 (1979-10-01), Baldwin et al.

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