| abstract |
Compounds of the formula <IMAGE> wherein F is the residue of a monoazo or disazo compound, each X is independently -NR2-Q-NR3R4 or -NR2-Q-N(+)R5R6R7, wherein Q is linear or branched C2-6alkylene, R2 is hydrogen or C1-4alkyl, each of R3, R4, R5 and R6 is independently hydrogen; C1-6alkyl; C2-6alkyl substituted by hydroxy or cyano; C1-3alkyl substituted by phenyl or substituted phenyl having 1 to 3 substituents selected from chloro, C1-4alkyl and C1-4alkoxy; C5-6cycloalkyl or C5-6cycloalkyl substituted by 1 to 3 C1-4alkyl groups, with the proviso that neither R5 nor R6 can be hydrogen, or R3 and R4 or R5 and R6 taken together and with the nitrogen atom to which they are joined form a 5- or 6-membered ring containing at most one further hetero atom, and R7 is C1-4alkyl or benzyl, each Z1 is independently -CO-, -SO2- or <IMAGE> wherein R1 is hydrogen or C1-4alkyl, and Y is chloro, hydroxy, amino or an aliphatic or aromatic amino group, each Z2 is independently <IMAGE> wherein R1 is hydrogen or C1-4alkyl, m is 1 or 2, n is 0-4, and p is 0-3, with the proviso that n+2p>/=m+1, are useful as dyes for paper, leather and cellulosic fibers. |