Cationic triazatrimethine dyestuffs
AssigneeBayer Aktiengesellschaft
InventorsHauke Furstenwerth, Karl-Heinrich Lange, Roderich Raue, Alfred Brack
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Abstract
The new cationic triazatrimethine dyestuffs of the formula ##STR1## wherein the substituents B, Z, R.sup.2 and An.sup..crclbar. have the meaning given in the description, are suitable for dyeing and printing naturally occurring and synthetic materials.
Claims12
A triazatrimethine dyestuff of the formula (I) ##STR33## ##STR34## wherein Z represents a radical of the formula ##STR35## wherein R.sup.3 represents hydrogen or an alkyl, alkenyl or aralkyl radical and
- X represents the remaining members of a five-membered, optionally substituted and optionally fused partly unsaturated heterocyclic ring which contains one to three hereto atoms selected from the group consisting of oxygen, sulphur and nitrogen,
- B represents alkylmercapto, arylmercapto or a radical of the formula ##STR36## wherein R denotes hydrogen or an alkyl, alkenyl, acyl, cycloalkyl, aryl, aralkyl, amino, alkylamino, dialkylamino, arylamino, aralkylamino or heterocyclic radical and
- R.sup.1 denotes hydrogen or an alkyl, alkenyl or aralkyl radical, or
- R and R.sup.1 together with the nitrogen atom to which they are attached form a heterocyclic ring,
- R.sub.2 represents hydrogen or an alkyl, alkenyl, alkinyl or aralkyl radical and
- An.sup.(-) represents an anion,
- and wherein the cyclic and acyclic radicals can contain non-ionic substituents and/or a carboxyl group.
Dyestuff of the formula ##STR42## wherein Z represents a radical of the formula ##STR43## wherein R.sup.3 represents hydrogen or an alkyl, alkenyl or aralkyl radical and
- X represents the remaining members of a five-membered, optionally substituted and optionally fused partly unsaturated heterocyclic ring which contains one to three hereto atoms selected from the group consisting of oxygen, sulphur and nitrogen,
- B represents alkylmercapto, arylmercapto or a radical of the formula ##STR44## wherein R denotes hydrogen or an alkyl, alkenyl, acyl, cycloalkyl, aryl, aralkyl, amino, alkylamino, dialkylamino, arylamino, aralkylamino or heterocyclic radical and
- R.sup.1 denotes hydrogen or an alkyl, alkenyl or aralkyl radical, or
- R and R.sup.1 together with the nitrogen atom to which they are attached form a heterocyclic ring,
- R.sup.2 represents hydrogen or an alkyl, alkenyl, alkinyl or aralkyl radical and
- An.sup.(-) represents an anion.
Dependencies are inferred from the claim text.