Cationic dyestuffs
AssigneeBayer Aktiengesellschaft
InventorsAlfred Brack, Ernst Schmitt
Life of this patent
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Abstract
Cationic dyestuffs and processes for their manufacture and their use for dyeing, printing and bulk dyeing of natural and synthetic materials, particularly of polyacrylonitrile and copolymers of acrylonitrile with other vinyl compounds, acid modified aromatic polyesters and acid modified polyamides.
Claims9
Cationic dyestuff of the formula ##SPC24##
- wherein
- R is hydrogen, methyl, n-propyl, i-propyl, n-butyl, -cyanoethyl, or -hydroxyethyl;
- R.sub.1 is methyl, n-butyl, allyl, phenyl, p-tolyl, o-tolyl, p-chlorophenyl, or m-nitrophenyl;
- K is ##EQU3## ##SPC25## ##SPC26## 135/9
- N-methyl-tetrahydroquinolinyl,
- N-ethyl-tetrahydroquinolinyl,
- N-.beta.-chloroethyl-tetrahydroquinolinyl,
- N-.beta.-cyanoethyl-tetrahydroquinolinyl;
- A is p-phenylene, 2,5-diethoxy-p-phenylene, 2,5-dimethoxy-p-phenylene 3-methyl-p-phenylene, 3-methoxy-p-phenylene, 3-chloro-p-phenylene, 3-methoxycarbonyl-amino-p-phenylene, 3-dimethylamido-carbonylamino-p-phenylene, 3-ethoxy-p-phenylene, or 3-methylamido-carbonylamino-p-phenylene;
- R.sub.2 is methyl, ethyl, n-propyl, n-butyl, i-butyl, .beta.-chloroethyl, diethylaminoethyl, cyclohexyl, phenyl, p-othoxyphenyl, o-methoxyphenyl, o-tolyl, benzyl, or p-methylbenzyl;
- R.sub.3 is hyrogen, methyl, ethyl, n-propyl, or n-butyl;
- R.sub.4 is methyl or ethyl;
- R.sub.5 is hydrogen, 5-chloro, 5-methoxy, or 5-ethoxy;
- R.sub.6 is methyl, ethyl, or n-butyl;
- R.sub.7 is hydrogen or 6-methoxy;
- R.sub.8 is chloro, cyano, methoxy, methoxycarbonyl, .beta.-ethoxyethyl, .beta.-cyanoethyl, .beta.-hydroxycarbonylethyl, dimethylamino, carbonamido, phenyl, piperidyl, pyrrolidinyl, or morpholinyl;
- R.sub.9 is hydrogen or methyl;
- R.sub.10 is hydrogen or ethyl;
- R.sub.11 is methyl or phenyl;
- B is the remaining portion of morpholinyl, piperidinyl, pyrrolidinyl, 3-methylpyrazolinyl 3-phenylpyrazolinyl, or N-.beta.-cyanoethylpiperazinyl;
- and
- An .sup.(.sup.-) is an anion.
Cationic dyestuffs of the general formula ##SPC27##
- wherein
- R.sub.14 denotes methyl, ethyl, propyl, or butyl,
- R.sub.15 denotes methyl, ethyl, propyl, butyl, pentyl, hexyl, phenyl, or benzyl,
- R.sub.16 and R.sub.17 independently of one another denote methyl, ethyl, propyl, butyl, pentyl, hexyl, (meth)allyl, or propargyl and
- An .sup.(.sup.-) denotes an anion.
Cationic dyestuffs of the general formula ##SPC28##
- wherein
- R.sub.16 and R.sub.17 independently of one another denote methyl, ethyl, propyl, butyl, pentyl, hexyl, methy)allyl or propargyl,
- R.sub.18 denotes a methyl or ethyl group and
- An .sup.(.sup.-) denotes an anion.
Cationic dyestuffs of the general formula ##SPC29##
- wherein
- R.sub.16 and R.sub.17 independently of one another denote methyl, ethyl, propyl, butyl, pentyl, hexyl, (meth)allyl or propargyl,
- R.sub.18 denotes a methyl or ethyl group and
- An .sup.(.sup.-) denotes an anion.
A cationic dyestuff of the formula ##SPC30##
A cationic dyestuff of the formula ##SPC31##
A cationic dyestuff of the formula ##SPC32##
A cationic dyestuff of the formula ##SPC33##
A cationic dyestuff oofthe formula ##SPC34##
Dependencies are inferred from the claim text.