Preparation of 2,4,6-trialkylphenols

Details Preparation of 2,4,6-trialkylphenols Preparation of 2,4,6-trialkylphenols

1982-03-29

1983-11-29

Lone, Werren B.

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

Organic compounds

Oxygen containing

568781, C07C 3714, C07C 3906

Patent

active

044182236

ABSTRACT:
Phenols may be alkylated with monosubstituted or alpha, beta-disubstituted olefins over a silica alumina composite to afford 2,4,6-tri-sec-alkylphenols in high yields. The alkylation catalyst shows high activity and high selectivity to the 2,4,6-trialkylated product while minimizing oligomerization of the olefin. Composites containing from about 40 to about 60% silica, the remainder being alumina, are especially valuable.

REFERENCES:
patent: 2684389 (1954-07-01), Offutt
patent: 3437603 (1969-04-01), Hilfman
patent: 3470257 (1969-09-01), Sparks
patent: 3631120 (1971-12-01), Eberly, Jr. et al.
patent: 3683030 (1972-08-01), Sparks
patent: 3992455 (1976-11-01), Leston
patent: 4166191 (1979-08-01), Ueoka et al.
patent: 4275248 (1981-06-01), Firth

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