Process for producing aminoanthraquinone

Details Process for producing aminoanthraquinone Process for producing aminoanthraquinone

1979-05-16

1983-10-04

Gantz, Delbert E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 9724

Patent

active

044077564

ABSTRACT:
A process for producing an aminoanthraquinone, which comprises feeding of a nitroanthraquinone and an alkali sulfide continuously into a reaction zone kept at a temperature of from 80.degree. to 140.degree. C., the alkali sulfide being used in an amount of 1.6 or more times the mole number of the nitro group, and withdrawing the reaction product continuously or intermittently from the reaction zone; and an aminoanthraquinone obtained by the above process which is one of the most important intermediates of anthraquinone dyes.

REFERENCES:
patent: 3907838 (1975-09-01), Thiem et al.
patent: 3984425 (1976-10-01), Mori et al.
patent: 4045454 (1977-08-01), Yamada et al.
Lauth, Bullentin de la Societe Chemique d France, Serie 3, vol. 29, p. 1132, #243, 1903.
A Study of 1-Hydroxylamino-Anthraquinone & Some of Its Derivatives, 6/8/22, p. 2304, Princeton Univ. by Walter H. Beisler & Laudel W. Jones.
The Chemical Age, (Dyestuffs Monthly Supplement), Oct. 8, 1927, pp. 29-30.
J. Chem. Soc., 119, 768-777, (1921).
Bull. Soc. Chim. Fr., 29, 1132-1135, (1903).
Ohhalen der Chemie, 166, 147-155.
Berichte, 15, 1786-1794, (1882).
Anthracene and Anthraquinone, 1921, E. de Barry Barnett, pp. 142-143, P. Van Nostrand Co., N.Y.

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