Selective dealkylation of 4-tertiary-alkyl-2,5-xylenol

Details Selective dealkylation of 4-tertiary-alkyl-2,5-xylenol Selective dealkylation of 4-tertiary-alkyl-2,5-xylenol

1979-06-08

1980-10-14

Lone, Werren B.

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

Organic compounds

Oxygen containing

568751, 568788, C07C 3906, C07C 3722

Patent

active

042283116

ABSTRACT:
A method is described for the selective dealkylation of 4-tertiary-alkyl-2,5-xylenol while it is admixed with 6-tertiary-alkyl-2,4-xylenol by contacting the mixture of alkylated xylenols with a polymer-bound sulfonic acid catalyst at temperatures of 60.degree. C. or less and pressures of from about 0.5 to 5 atmospheres. The method is useful in separating 2,4-/2,5-xylenol mixtures.

REFERENCES:
patent: 2435087 (1948-01-01), Luten et al.
patent: 2497971 (1950-02-01), Basterfield
patent: 2603662 (1952-07-01), Stevens
patent: 2802884 (1957-08-01), D'Alelio
patent: 2917487 (1959-12-01), Jones et al.

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