Anthraquinone compounds

Details Anthraquinone compounds Anthraquinone compounds

1980-02-20

1981-11-17

Douglas, Winston A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260374, C07C143665

Patent

active

043010822

ABSTRACT:
There are described new anthraquinone compounds which, in the form of the free acid, correspond to the formula I ##STR1## in which R.sub.1 is a straight-chain or branched-chain alkyl group having 4 to 8 carbon atoms, R.sub.2 and R.sub.3 independently of one another are each a straight-chain or branched-chain alkyl group having 1 to 4 carbon atoms, R.sub.4 is hydrogen, an optionally acylated amino group, or a fibre-reactive radical bound by way of an amino group, and R.sub.5 is hydrogen, or a straight-chain or branched-chain alkyl group having 1 to 4 carbon atoms; and also the production thereof by selective desulfonation from an anthraquinonedisulfonic acid; and the use of the new anthraquinone compounds as dyes for dyeing and printing textile materials.

REFERENCES:
patent: 2022889 (1935-12-01), Lauer
patent: 2580190 (1951-12-01), Peter et al.
patent: 4224228 (1980-09-01), Adam

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