Process for the preparation of 1-nitro-anthraquinone which is pr

Details Process for the preparation of 1-nitro-anthraquinone which is pr Process for the preparation of 1-nitro-anthraquinone which is pr

1973-11-30

1976-02-17

Weinberger, Lorraine A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 7937

Patent

active

039391850

ABSTRACT:
Process for the preparation of 1-nitroanthraquinone which is practically free of 1,5-dinitroanthraquinone from 1-nitroanthraquinone containing 1,5-dinitroanthraquinone, characterised in that 1-nitroanthraquinone containing 1,5-dinitroanthraquinone is treated with a mixture of concentrated nitric acid and an inert organic solvent, the undissolved constituent is separated off and the 1-nitroanthraquinone is isolated from the solution.

REFERENCES:
patent: 2302729 (1942-11-01), Whelen
patent: 2435314 (1948-02-01), Kokatnur
patent: 2435544 (1948-02-01), Kokatnur
patent: 3766222 (1973-10-01), Hartwig et al.
patent: 3786073 (1974-01-01), Frey et al.
patent: 3798244 (1974-03-01), Mueller et al.
Reichel et al., as cited in Chemical Abstract 70, 38877z (1969).

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