Process for the preparation of thymol

Details Process for the preparation of thymol Process for the preparation of thymol

1989-07-05

1991-07-09

Lone, Werren B.

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

Organic compounds

Oxygen containing

568794, 568781, C07C 3714, C07C 3906

Patent

active

050307703

ABSTRACT:
Thymol can be prepared by reaction of m-cresol with propene at elevated temperature and at atmospheric to superatmospheric pressure by using wide- and medium-pored zeolites which have a pore diameter of at least 5 .ANG. as heterogeneous catalysts.

REFERENCES:
patent: 1886311 (1932-11-01), Skraup et al.
patent: 4086283 (1978-04-01), Biedermann et al.
patent: 4391998 (1983-07-01), Wu
patent: 4405818 (1983-09-01), Stead et al.
Soviet Inventions Illustrated, Sektion Chemie, Woche 8637, paragraph No. 244581, A 60, Sep. 26, 1986, Derwent Publications Ltd., London, GB; & Su-A-12 09678 (Moscow Gubkin Petrochem 2/7/86.
Bulletin of the Chemical Society of Japan, vol. 49, No. 10, Oct. 1976, pp. 2669-2673, Tokyo, Japan; T. Yamanaka; "Catalytic Properties of Metal Sulfates Supported on Gamma-A1203 in the Liquid-Phase Isopropylation of m-Cresol with Propylene" p. 2669, Column 1, lines 5-7.

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