Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-05-02
1976-11-16
Schenkman, Leonard
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260250A, 260250P, 260250Q, 260251Q, G07D23924
Patent
active
039923819
ABSTRACT:
Reactive azine dyestuffs of the formula: ##SPC1##
Wherein Am is selected from a group consisting of anilino, di(lower alkyl)amino, di(hydroxyethyl)amino, di(cyanoethyl)amino and N(lower alkyl)benzylamino radicals; one of Y.sup.1 and Y.sup.2 is H or SO.sub.3 H and the other is H or an alkyl or alkoxy group of 1-4 carbon atoms; one of X.sup.1 or X.sup.2 is H, SO.sub.3 H, and the other is H an alkyl or alkoxy group of 1-4 carbon atoms, Cl or CO.sub.2 H; X.sup.3 is H, an alkyl group of 1-4 carbon atoms or SO.sub.3 H, when the dotted fused ring is present B is absent and when the dotted fused ring is absent B is H or an alkyl or alkoxy group of 1-4 carbon atoms; at least one of the pendant benzene nuclei contains a NHQ group where Q is a cellulose-reactive group of the diazine series and the dyestuff as a whole contains at least 2 sulphonic acid groups.
The products are reactive dyes for cellulose which are colored in strong bright blue or reddish-blue shades of excellent fastness to washing and of a reasonable fastness to light, especially in respect of wet fading.
REFERENCES:
patent: 1886809 (1932-11-01), Hess
patent: 3505020 (1970-04-01), Caldwell
patent: 3776691 (1973-12-01), Neeb et al.
Imperial Chemical Industries Limited
Schenkman Leonard
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