Oxidation of monohydroxy aryl compounds to 1,4-quinones

Details Oxidation of monohydroxy aryl compounds to 1,4-quinones Oxidation of monohydroxy aryl compounds to 1,4-quinones

1975-07-28

1976-10-19

Garner, Vivian

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 47ET, 260396N, C07C 4964, C07C 4966

Patent

active

039870685

ABSTRACT:
A monohydroxy aryl compound, e.g., phenol or .alpha.-naphthol, or a mono- or dialkyl phenol or .alpha.-naphthol, is oxidized to the corresponding monomeric 1,4-quinone in a nitrile solution containing a soluble copper-nitrile complex catalyst by reaction with an oxygen-containing gas at a temperature in the range of about from 0.degree. to 100.degree. C. and under an oxygen partial pressure of about from 7 to 200 atmospheres, and at least about 20 atmospheres when the compound being oxidized is phenol. The elevated oxygen pressure favors conversion to the monomeric quinone, as contrasted to polymeric products.

REFERENCES:
patent: 3210384 (1965-10-01), Hay

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