| abstract |
New basic, optionally quaternized, dioxazine compounds of the formula I are described wherein: X, and X 2 independently of one another represent an unbranched or branched alkyl group having 1 to 4 carbon atoms, an optionally substituted phenyl group, halogen, hydrogen, cyano an optionally substituted phenylamino group in the phenyl radical, the CONH 2 group, the CONH-phenyl group which may be substituted in the phenyl radical or a COO-alkyl (C 1 -C 4 ) group; Z is an optionally quaternized basic group; Y is an anionic group; B independently of one another is a fused-on ring system with 2 to 4 carbocyclic and / or heterocyclic rings which, in addition to the substituents Z and Y, may optionally be further substituted; n the number range from 1 to 4 and m the number range from 0 to 2 with the condition that m is not greater than n; Process for their preparation and their use as dyes for salt-free dyeing and printing, especially of cellulose materials. |