Method for the production of trimethylhydroquinone

Details Method for the production of trimethylhydroquinone Method for the production of trimethylhydroquinone

1997-05-14

2000-05-16

Dees, Jose' G.

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

Organic compounds

Oxygen containing

C07C 3700

Patent

active

060639687

ABSTRACT:
The invention relates to an improved method for the production of 2,3,5-trimethylhydroquinone by rearranging 4-oxo-isophorone (keto-isophorone, 3,5,5-trimethylcyclohex-2-en[e]-1,4-dione) to a trimethylhydroquinone diester and by its subsequent saponification. ##STR1##

REFERENCES:
patent: T900015 (1972-07-01), Thweatt et al.
Howells et al., "Trifluoromethanesulfonic acid and derivatives", Chemical Reviews, vol. 77, pp. 69-92, 1977.
Y.A. Joe et al., Characteristic Oxidative Aromatization Pattern of Isophorone, 4-Hydroxyisophorone, and Rearrangement of 4-Oxoisophorone Under a Strong Acidic Condition, Bulletin of the Korean Chemical Society, Jun. 1991, 253-254.

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