Method for preparing benzoquinones

Details Method for preparing benzoquinones Method for preparing benzoquinones

1983-10-18

1984-11-13

Rollins, Alton D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 5004

Patent

active

044824939

ABSTRACT:
A method for preparing a benzoquinone represented by the general formula: ##STR1## where each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 is a hydrogen atom, an alkyl group or an aryl group, which comprises reacting a phenol represented by the general formula: ##STR2## where R.sup.1, R.sup.2 R.sup.3 and R.sup.4 are as defined above, with hydrogen peroxide in the presence of a ruthenium catalyst.

REFERENCES:
patent: 2395638 (1946-02-01), Milas
patent: 3012043 (1961-12-01), Dowden et al.
patent: 3193584 (1965-07-01), Rylander et al.
patent: 3670034 (1972-06-01), Robinson
patent: 3671552 (1972-06-01), LeBris et al.
patent: 3833634 (1974-09-01), Pruett et al.
Patai, The Chemistry of the Hydroxyl Group, part 1, 1971, pp. 505-592.

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