Process for the preparation of substituted phenols

Details Process for the preparation of substituted phenols Process for the preparation of substituted phenols

1990-10-09

1991-12-10

Lone, Werren B.

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

Organic compounds

Oxygen containing

C07C 3750

Patent

active

050720554

ABSTRACT:
The substituent X in the phenols of the formula: ##STR1## wherein R.sub.1 to R.sub.4 are hydrogen or unsubstituted or substituted alkyl, alkenyl or alkynyl, and X is secondary or tertiary alkyl of 3 to 9 carbon atoms, can be removed by heating said phenols in the presence of an alkali metal hydrogensulfate.

REFERENCES:
patent: 2295673 (1942-09-01), Meharg et al.
patent: 2295674 (1942-09-01), Meharg et al.
patent: 3658920 (1972-04-01), Lawley et al.
patent: 4085132 (1978-04-01), Park et al.
patent: 4228297 (1980-10-01), Haeberli et al.
patent: 4230896 (1980-10-01), Daly
patent: 4533767 (1985-08-01), Talley
G. H. Stillson et al., J. Am. Chem. Soc. 67, 304 (1945).

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