| abstract |
An anthraquinone dye for cellulose-containing fibers having the formula (I) indicated below and a process for producing the same are disclosed: <IMAGE> (I) wherein R1 is an amino group or a hydroxyl group; R2 is a hydrogen atom, a chlorine atom, a bromine atom, a cyano group or -SO2R (wherein R is a lower alkyl group or a phenyl group); R3 and R4 are each a hydrogen atom, an amino group, a hydroxyl group, a nitro group, a chlorine atom or a bromine atom; Y is a bonding group -O- or -S-; one of X1 and X2 is a hydrogen atom and the other is <IMAGE> (wherein Z is a bonding group -O- or -S-; R5 is a lower alkyl group, a lower alkoxy group or a hydrogen atom; R6 and R7 are each a hydrogen atom or an alkyl group, an alkenyl group, a cyanohexyl group, an aryl group or an aralkyl group which may be substituted by a cyano group, a hydroxyl group, a lower alkoxy group or a dialkylamino group, or NR6R7 represents a 5- or 6-membered nitrogen-containing heterocyclic ring formed by the bonding of R6 and R7; the sum of the carbon atoms of R6 and R7 is not more than 18); and n is 0 or 1, but n is 0 when X2 is a hydrogen atom. |