Triphendioxazine vinyl sulphone dyestuffs
AssigneeBayer Aktiengesellschaft
InventorsHorst Jager, Wolfgang Harms, Karl J. Herd
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Abstract
Triphendioxazine dyestuffs of the formula ##STR1## where the substitutents are as defined in the descriptive part, produce blue to reddish blue dyeings of good light and wet fastness on cellulose and polyamide materials. The new dyestuffs are obtained by oxidative cyclization of condensation products of appropriately substituted amines of the formula ##STR2## with 1,4-benzoquinones.
Claims3
Triphendioxazine dyestuffs of the general formula ##STR56## wherein R.sub.1, R.sub.2 =H, F, Cl, Br, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkyl, phenoxy or acylamido;
- X=NR.sub.3, O or S wherein
- R.sub.3 =H, C.sub.1 -C.sub.4 -alkyl, optionally substituted by SO.sub.3 H, OSO.sub.3 H, COOH, OH or OCH.sub.3 ;
- Y=C.sub.2 -C.sub.6 -alkylene which is optionally interrupted by O, SO.sub.2, NH, S, NCH.sub.3 or substituted by OSO.sub.3 H;
- Z=--CH.dbd.CH.sub.2 or --CH.sub.2 --CH.sub.2 --w wherein
- W=OSO.sub.3 H, SSO.sub.3 H, OPO.sub.3 H.sub.2, OC.sub.1 -C.sub.4 -alkylcarbonyl.
Dyestuffs of the formula ##STR58## wherein Y' denotes C.sub.2 -C.sub.4 -alkylene.
Dependencies are inferred from the claim text.