Preparation of ortho-alkylated phenols in the presence of a cata

Details Preparation of ortho-alkylated phenols in the presence of a cata Preparation of ortho-alkylated phenols in the presence of a cata

1988-06-10

1989-10-24

Lone, Werren B.

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

Organic compounds

Oxygen containing

C07C 3716, C07C 3700

Patent

active

048763985

ABSTRACT:
A process for preparing an ortho-alkylated phenol is conducted by a vapor phase catalytic reaction at 200.degree.-500.degree. C. by reacting a vapor phenol compound selected from phenol, ortho-cresol and a mixture of phenol mixed with ortho-cresol with a vapor alcohol selected from methanol, in the presence of a catalyst containing magnesium oxide and manganese oxide, wherein the catalyst is prepared by treating an alkali in an aqueous solution having soluble magnesium ion and manganese ion to obtain coprecipitate of magnesium and manganese salt with respect to the alkali added, and the coprecipitate is then filtered, water-washed and calcined at 250.degree.-600.degree. C. for 1-4 hours for forming the catalyst consisting of magnesium oxide and manganese oxide having an atomic ratio of Mg/Mn of 1:1 to 100:1.

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patent: 4661658 (1987-04-01), Battista et al.
patent: 4677089 (1987-06-01), Bennett et al.

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