Method for making polymethylated phenols

Details Method for making polymethylated phenols Method for making polymethylated phenols

1984-05-24

1985-11-05

Lone, Werren B.

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

Organic compounds

Oxygen containing

568716, C07C 3716, C07C 3907

Patent

active

045515638

ABSTRACT:
A method is provided for making polymethylated phenols, such as 2,3,5-trimethylphenol and 2,3,5,6-tetramethylphenol from a mixture of isophorone and methanol. Catalytic demethanation of isophorone and methanation of the resulting product is achieved by contacting the mixture of isophorone and methanol with the calcination residue of a mixture of magnesium carbonate and/or magnesium hydroxide and a manganese compound at elevated temperatures.

REFERENCES:
patent: 2701264 (1955-02-01), Deahl et al.
patent: 3833673 (1974-09-01), Brannock
patent: 3859365 (1975-01-01), Young
patent: 4086282 (1978-04-01), Wattimena

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