Process for producing 1,4-dihydroanthraquinone

Details Process for producing 1,4-dihydroanthraquinone Process for producing 1,4-dihydroanthraquinone

1977-11-17

1979-11-27

Garner, Vivian

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260367, C07C 4968

Patent

active

041761251

ABSTRACT:
1,4-Dihydroanthraquinones are produced by oxidizing 1,4,4a,9a-tetrahydroanthraquinone or 1,4-dihydroanthrahydroquinone or an inert substituted derivative thereof with molecular oxygen in an aqueous medium at the reaction temperature of lower than 70.degree. C. under the condition of pH of 8.5 to 12.

REFERENCES:
patent: 1890040 (1932-12-01), Luttringhaus et al.
patent: 2938913 (1960-05-01), Weyker et al.
patent: 3778452 (1973-12-01), Jasey et al.
patent: 3838178 (1974-09-01), Vaughn

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