O-alkylation of phenolic compounds via rare earth orthophosphate

Details O-alkylation of phenolic compounds via rare earth orthophosphate O-alkylation of phenolic compounds via rare earth orthophosphate

1996-10-15

1998-07-28

McKane, Joseph K.

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

Organic compounds

Oxygen containing

568632, 568635, 568657, C07C 4302

Patent

active

057865205

ABSTRACT:
Carbocyclic/aliphatic ethers, for example anisole, quaicol, guaethol, p-methoxyphenol and ethylene dioxybenzene, are selectively prepared, in good yield, by reacting a phenolic compound, for example a phenol, hydroquinone, pyrocatechin, naphthol, or the like, with an alcohol, for example methanol, ethanol, isopropanol, ethylene glycol, etc., in gaseous phase, in the presence of a catalytically effective amount of a trivalent rare earth metal orthophosphate, for example a lanthanum, cerium or samarium orthophosphate, optionally doped with an alkali or alkaline earth metal, preferably cesium.

REFERENCES:
patent: 4450306 (1984-05-01), Eskinazi et al.
patent: 4533758 (1985-08-01), Wells et al.
patent: 4675456 (1987-06-01), Mossman et al.

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