Process for the preparation of 1-amino-2-bromo-4-hydroxyanthraqu

Details Process for the preparation of 1-amino-2-bromo-4-hydroxyanthraqu Process for the preparation of 1-amino-2-bromo-4-hydroxyanthraqu

1985-02-07

1988-05-03

Hollrah, Glennon H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260381, 260687H, 260694, C07C 9726

Patent

active

047418672

ABSTRACT:
1-Amino-2-bromo-4-hydroxyanthraquinone is obtained in good yields and in an environmentally acceptable manner by bromination of 1-aminoanthraquinone in 2 to 5 times the quantity by weight of 80 to 98% strength sulphuric acid and using 1.1-1.5 mole of bromine under elevated pressure.

REFERENCES:
patent: 2604480 (1952-07-01), Seymour et al.
patent: 4197250 (1980-04-01), Redeker et al.
patent: 4292247 (1981-09-01), Nishikuri et al.

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