Process for the dealkylation of tert.-alkyl substituted phenols

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

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C07C 3904

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active

041502434

ABSTRACT:
A process for the tertiary dealkylation of a tertiary alkyl containing m- and/or p-cresol wherein a tertiary alkyl containing m- and/or p-cresol is continously introduced into a reaction vessel with a small amount of sulfuric acid or an quivalent amount of a sulfonic acid and the reaction vessel contains a high concentration of m- and/or p-cresol or a high boiling phenol which under the prevailing reaction conditions is not substantially vaporized from the reaction mixture. The reaction mixture is maintained at a temperature of no greater than 230.degree. C. The reaction products are withdrawn continuously from the reactor (and separated into its components) and at the same time a small amount of the reaction mixture being withdrawn intermittently or continously from the reactor.

REFERENCES:
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patent: 2366497 (1945-01-01), Dawson
patent: 2497971 (1950-02-01), Basterfield
patent: 3465048 (1969-09-01), Ito et al.
patent: 3714269 (1973-01-01), Ito et al.

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