Catalytic dealkylation of alkylated phenols

Details Catalytic dealkylation of alkylated phenols Catalytic dealkylation of alkylated phenols

1984-11-14

1985-12-24

Lone, Werren B.

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

Organic compounds

Oxygen containing

C07C 3750

Patent

active

045608105

ABSTRACT:
Alkylated hydroxyaromatic compounds, particularly alkylated phenols such as mesitol and 2,4-xylenol, are selectively ortho-dealkylated by contact at a temperature within the range of about 350.degree.-500.degree. C. with a catalyst comprising a combination of at least one chromium oxide and at least one of the oxides of zinc, iron, magnesium and manganese, with zinc and iron being preferred.

REFERENCES:
patent: 4191844 (1980-03-01), Bjornson
patent: 4230895 (1980-10-01), Daly
patent: 4230896 (1980-10-01), Daly
Daly, "J. Catalysis" vol. 61, p. 528 (1980).
Jelinck, "Chemical Abstracts" vol. 55, p. 7357 (1961).

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