Process for producing anthraquinone intermediates

Details Process for producing anthraquinone intermediates Process for producing anthraquinone intermediates

1978-04-21

1981-09-29

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260380, C07C 9726, C07C 9725

Patent

active

042922470

ABSTRACT:
1-Amino-2,4-dibromoanthraquinone, which can be hydrolyzed to produce 1-amino-2-bromo-4-hydroxyanthraquinone which is an intermediate for the production of dyes, is produced by bromination of 1-aminoanthraquinone in a concentrated sulfuric acid at a temperature of 50.degree. to 150.degree. C.

REFERENCES:
patent: 4197250 (1980-04-01), Redeker et al.

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