Process for preparing m-alkylhydroxybenzene

Details Process for preparing m-alkylhydroxybenzene Process for preparing m-alkylhydroxybenzene

1982-11-26

1984-10-02

Lone, Werren B.

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

Organic compounds

Oxygen containing

568780, 568769, C07C 3704

Patent

active

044750021

ABSTRACT:
An improved process for preparing m-alkylhydroxybenzene which comprises heating alkylbenzene or an isomeric mixture of alkylbenzenesulfonic acid in the presence of sulfuric acid and an inorganic salt at a temperature of from 150.degree. to 210.degree. C. to form an isomeric mixture of alkylbenzenesulfonic acid which is rich in the m-isomer, selectively hydrolyzing the isomers of alkylbenzenesulfonic acid other than the m-isomer, and caustically fusing the unhydrolyzed alkylbenzenesulfonic acid.

REFERENCES:
patent: 2139372 (1938-12-01), Navies
patent: 2353237 (1944-07-01), Harris
patent: 2735873 (1956-02-01), Cori
patent: 3465047 (1969-09-01), Ito
patent: 4910994 (1975-10-01), Block

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