Process for the preparation of 2,3-dimethoxy-5-methylbenzoquinon

Details Process for the preparation of 2,3-dimethoxy-5-methylbenzoquinon Process for the preparation of 2,3-dimethoxy-5-methylbenzoquinon

1989-03-13

1990-08-28

Killos, Paul J.

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

Organic compounds

Cyclohexadiene having atoms double bonded directly at the 1-...

C07C 4610, C07C 6600

Patent

active

049527126

ABSTRACT:
2,3-Dimethoxy-5-methylbenzoquinone is prepared by oxidizing 3,4,5-trimethoxytoluene by reaction with hydrogen peroxide in the presence of a catalyst which is a heteropolyacid selected from phosphomolybdic acids, phosphotungstic acids, silicomolybdic acids and silicotungstic acids or a salt thereof.

REFERENCES:
patent: 4482493 (1984-11-01), Matsumoto et al.
Korenskii et al., Zh. Obshch. Khim. 55, pp. 1969-1975, Sep., 1985.

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