Preparation of ortho-alkylated phenols

Details Preparation of ortho-alkylated phenols Preparation of ortho-alkylated phenols

1978-02-21

1980-05-06

Lone, Werren B.

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

Organic compounds

Oxygen containing

C07C 3712, C07C 3906

Patent

active

042018803

ABSTRACT:
This invention is for a shaped, alkylation catalyst comprising magnesium oxide bonded with silica and to the use of the catalyst in a process for the ortho-alkylation of phenols. The process comprises the vapor phase reaction of a non-ortho-substituted phenol with an alcohol in the presence of a catalyst. The catalyst of the invention is an improvement over prior art catalysts used for ortho-alkylation of phenols as it substantially increases reaction selectivity, eliminates loss of catalyst arising with the use of powders or weakly sintered composites and has a substantially extended useful life.

REFERENCES:
patent: 3446856 (1969-05-01), Hamilton
patent: 3968172 (1976-07-01), Ichikawa et al.
patent: 3971832 (1976-07-01), Watanabe et al.

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