Vat dyestuffs of the trisanthraquinonylaminotriazine series
AssigneeBayer Aktiengesellschaft
InventorsWalter Hohmann, Klaus Wunderlich
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Abstract
Vat dyestuffs containing at least 80% by weight of one or more of the compounds of the formula ##STR1## wherein A and B independently of one another represent --NHV, --NHW or --NHZ, in which V represents a radical of the formula ##STR2## W represents a radical of the formula ##STR3## and Z represents a radical of the formula ##STR4## R.sub.1 and R.sub.2 denote hydrogen or acylamino, but do not simultaneously denote acylamino, Hal denotes a halogen atom and n denotes the numbers 0, 1 or 2, yield deep and light-fast dyeings on cellulose fibres. They are advantageously obtained by the stepwise condensation of cyanuric chloride with corresponding aminoanthraquinones in the presence of a phenol.
Claims4
A compound selected from the compounds of the formula ##STR10## wherein A represents --NHV, --NHW or --NHZ and B represents --NHW or --NHZ,
- in which
- V represents a radical of the formula ##STR11## W represents a radical of the formula ##STR12## and Z represents a radical of the formula ##STR13## R.sub.1 and R.sub.2 are hydrogen or C.sub.1-4 alkylcarbonylamino, but do not simultaneously denote C.sub.1-4 alkylcarbonylamino,
- Hal is a halogen atom and
- n is a halogen atom and
- n is the numbers 0, 1 or 2.
A mixture of compounds of the formula ##STR14## wherein V represents a radical of the formula ##STR15## W represents a radical of the formula ##STR16## and Z represents a radical of the formula ##STR17## the moieties NHV, NHW and NHZ being disposed at the 3 or 5 position of the triazinyl moiety and
- Hal represents halogen,
- R.sub.1 and R.sub.2 are hydrogen or C.sub.1 -C.sub.4 alkyl carbonyl amino, but do not simultaneously denote C.sub.1 -C.sub.4 alkyl carbonyl amino,
- m represents a number from 0 to 0.5 and r and p independently of one another represent a number from 0.5 to +1.5, with the sum m+r+p being 2.
Dependencies are inferred from the claim text.