Cationic dyestuffs

Claim 1

Dyestuff of the formula: ##STR25## wherein R' represents C 1 -C 6 -alkyl, halo-C 1 -C 6 -alkyl, hydroxy-C 1 -C 6 -alkyl, cyano-C 1 -C 6 -alkyl, acetoxy-C 1 -C 6 -alkyl, C 1 -C 4 -alkoxycarbonyl-C 1 -C 6 -alkyl, carbonyl-C 1 -C 6 -alkyl, aminocarbonyl-C 1 -C 6 -alkyl, C 2 -C 7 -alkenyl, benzyl, phenylethyl, or ##STR26## wherein R 17 denotes hydrogen or methyl and R 18 denotes methyl, ethyl, chloromethyl, methoxymethyl, ethoxymethyl, propoxymethyl, butoxymethyl, allyloxymethyl, phenoxymethyl, or phenyl; R 1 ' represents C 1 -C 6 -alkyl, C 2 -C 7 -alkenyl, cyclopentyl, cyclohexyl, benzyl, β-phenylethyl, C 1 -C 6 -alkylcyclopentyl, C 1 -C 6 -alkylcyclohexyl, C 1 -C 6 -alkylbenzyl, C 1 -C 6 -alkyl-β-phenylethyl or C 1 -C 6 -alkyl substituted by halogen, hydroxyl, C 1 -C 4 -alkoxy, phenoxy, cyano, acetoxy, hydroxycarbonyl, C 1 -C 4 -alkoxycarbonyl, C 1 -C 4 -alkoxycarbonyloxy, aminocarbonyl, C 1 -C 4 -alkylsulphonylamino, or C 1 -C 4 -alkylsulphonyl-C 1 -C 4 -alkylamino; R 2 represents ##STR27## R 6 denotes hydrogen, methyl, ethyl, methoxymethyl, ethoxymethyl, propoxymethyl, butoxymethyl, allyloxymethyl, phenyl, or phenoxymethyl; R 7 denotes hydrogen, methyl, ethyl, butoxymethyl, methoxymethyl, ethoxymethyl, propoxymethyl, allyloxymethyl, phenyl, phenoxymethyl, or --Y--A'; R 8 denotes hydrogen or methyl; p denotes the numbers 1 - 6; Y represents oxygen or sulphur; R 4 represents hydrogen, halogen, C 1 -C 6 -alkyl, halo-C 1 -C 6 -alkyl, C 1 -C 4 -alkoxy, C 1 -C 4 -alkylcarbonylamino, C 1 -C 4 -alkylsulphonylamino, phenylcarbonylamino, phenylsulphonylamino, C 1 -C 4 -alkylcarbonyloxy, phenylcarbonyloxy, benzyloxy, β-phenylethyloxy, or either of the last two mentioned radicals substituted in the phenyl ring by C 1 -C 6 -alkyl, cyano, phenyloxy, naphthyloxy, C 1 -C 6 -alkylphenyloxy, C 1 -C 6 -alkylnaphthyloxy, halophenyloxy, or halonaphthyloxy; R 4 , in addition, when joined together with B represents a fused naphthalene ring or a fused tetralin ring; R 5 represents hydrogen, C 1 -C 6 -alkyl, C 1 -C 4 -alkoxy, C 1 -C 4 -alkylcarbonylamino or C 1 -C 4 -alkylsulphonylamino, phenylcarbonylamino, phenylsulphonylamino, C 1 -C 4 -alkylcarbonyloxy, phenylcarbonyloxy, benzyloxy, β-phenylethyloxy, or either of the last two mentioned radicals substituted in the phenyl ring by C 1 -C 6 -alkyl, phenyloxy, naphthyloxy, C 1 -C 6 -alkylphenyloxy, C 1 -C 6 -alkylnaphthyloxy, halophenoxy, or halonaphthyloxy; R 5 , in addition, when joined together with B represent a fused naphthalene ring or a fused tetralin ring; R 13 ' represents hydrogen, C 1 -C 6 -alkyl, C 1 -C 4 -alkoxy, cyclopentyl, cyclohexyl, benzyl, β-phenylethyl, C 1 -C 6 -alkylcyclopentyl, C 1 -C 6 -alkylcyclohexyl, C 1 -C 6 -alkylbenzyl, C 1 -C 6 -alkyl-β-phenylethyl, phenyloxy, naphthyloxy, C 1 -C 6 -alkylphenyloxy, C 1 -C 6 -alkylnaphthyloxy, halophenyloxy, halonapthyloxy, benzyloxy, β-phenylethyl, C 1 -C 4 -alkylcarbonylamino, C 1 -C 4 -alkylsulphonylamino, phenylcarbonylamino, phenylsulphonylamino, a fused benzene ring, or a fused tetrahydrobenzene ring, either of which is fused in the 4,5-position or 5,6-position of D; R 14 represents C 1 -C 6 -alkyl, C 1 -C 4 -alkoxy, phenoxy, benzyloxy, benzyl, trifluoromethyl, halogen, C 1 -C 4 -alkylcarbonylamino, C 1 -C 4 -alkylsulphonylamino, phenylcarbonylamino, phenylsulphonylamino, a fused benzene ring or a fused tetrahydrobenzene ring either of which is fused in the 6,7-position of D; A' is a member of a group consisting of cyclohexyl, naphthyl, phenyl, or phenyl substituted by chloro, methyl, ethyl, isopropyl, sec. butyl, tert. butyl, tetramethylbutyl, nonyl, dodecyl, phenyl, benzyl, cyclohexyl, phenyl-isopropyl, methoxy, ethoxy, isopropoxy, phenylsulfonyl or methylthio; n represents the numbers 0, 1, 2, or 3; and X.sup.(-) represents an anion.