Verfahren zur Herstellung eines Disazofarbstoffes.

Verfahren zur Herstellung eines Azofarbstoffes der Stilbenreihe.

Verfahren zur Herstellung neuer Disazofarbstoffe

Procédé de préparation de colorants diazoïques

Verfahren zum Färben und Bedrucken von Textilmaterialien aus halb- und vollsynthetischen Stoffen, insbesondere aus Polyamiden

Sulfaphenyl-azo-phenyl-azo-aminophenyl dyestuffs

COLORANTS AZOIQUES

DISAZO DYE FOR POLYESTER FIBER

NEW MATERIAL:A compound of formula I (X is H, halogen, nitro, formyl, thiocyanato, etc; Y is cyano, alkoxycarbonyl or carbamoyl; Z is H, halogen, alkyl, benzoyl, amino, etc.; R is alkyl, allyl, allyloxyalkyl, hydroxyethyl, cycloalkyl, etc.). EXAMPLE: The compound of formula II. USE: Capable of dyeing polyester fibers in blue color, having improved light, sublimation and water resistance and temperature stability and pH stability in dyeing. PREPARATION: An amine of formula III is diazotized and coupled with an aminothiophene of formula IV. The resultant monoazo compound of formula Vis then diazotized and coupled with a coupling component of a quinoline of formula VI. COPYRIGHT: (C)1984,JPO&Japio ...

DISAZO DYESTUFFS

... 1316724 Disazo dyes BAYER AG 19 April 1971 [14 Feb 1970 10 Oct 1970] 21629/71 Heading C4P The invention comprises disazo dyes of formula wherein W is a radical of formula In the above formulae R 1 is H or an optionally substituted alkyl or phenyl group; R 2 and R 3 independently represent H, halogen, an optionally substituted alkyl or alkoxy group or an acylamino group; R 4 is H, halogen or optionally substituted alkyl, alkoxy or an acylamine group; R 5 is H or an optionally substituted alkyl or alkoxy group; R 6 and R 7 independently represent hydrogen, hydroxy, cyano, halogen, acyloxy, alkoxycarbonyl, or an optionally substituted phenyl group; X is a C 1 -C 4 alkylene radical; R 8 is an unsubstituted alkyl, phenyl or 2-naphthyl or 4-biphenylyl group; R 9 is H, C 1 -C 6 alkyl group optionally substituted by a nitrile, carbamoyl or carboxyl group; R 10 is a substituent and n is 0, 1 or 2. The dyes are obtained by diazotizing a monoazo dyestuff of formula and coupling it with the required ...

AZO DYES

Sulfaphenyl-azo-phenyl-azo-aminophenyl dyestuffs

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DISAZO DYES

DIHYDROINDOLE AND INDOLENINE DYESTUFFS

... 1362066 Tetrahydro-oxazolo-[3,2a]-indoles BAYER AG 9 Dec 1971 [9 Dec 1970] 57274/71 Heading C2C [Also in Division C4] 9a-Methyl-2,3,9,9a-tetrahydro-oxazolo-[3,2a]- indoles of formula (in which R 1 and R 2 are each optionally substituted 1-4 C alkyl, or together complete a saturated 5- or 6-membered ring; R 3 is H, carboxyl, one or more non-ionic substituents or completes a fused 5- or 6-membered ring which optionally possesses one or more non-ionic substituents; R 4 and R 5 are each H or non-ionic substituents) are prepared by reacting compounds of formulae The examples describe the preparation of compounds and mixtures of compounds in which R 1 and R 2 are CH 3 ; R 3 is H, 5-methyl-7-cyclohexyl, 7-methoxy, 7-phthalimidomethyl or 7-CO 2 H; R 4 and R 5 are both H, or one of R 4 and R 5 is H and the other is CH 3 , -CH 2 Cl, C 6 H 5 , phenoxymethyl, hexyloxymethyl or allyloxymethyl.

[...], DYES [...] AND APPLICATIONS

Disazo Dyes containing a Tetrahydroquinoline Vinylsulphone Grouping

... 1,155,318. Tetrahydroquinoline derivatives. EASTMAN KODAK CO. 25 Aug., 1966 [26 Aug., 1965], No. 38131/66. Heading C2C. [Also in Division C4] Compounds of the formula where R 2 , R 3 , R 4 and R 5 are H or alkyl, Y n-1 represents substituents which may be present in the 5, 7 or 8 positions of the tetrahydroquinoline nucleus and n is 1-4 are prepared by reacting divinyl sulphone with the appropriate tetrahydroquinoline in the presence of acetic acid and an inert solvent.

Procedure for the production of new Disazofarstoffen

Monoazo disperse dyes containing a nitrophenyl group and a homophthalimide group

New dyes disazoïques, their preparation and their employment

AZO DYE FOR ANISOTROPIC DYE FILM

Disclosed is an organic dye which exhibits high dichroism in a short wavelength region (380-500 nm), while having excellent durability. This organic dye is useful for anisotropic dye films such as polarizing films. Specifically disclosed is an azo dye for anisotropic dye films whose free acid form is represented by the following formula (1) or (2).

DISAZO DYESTUFFS

Process for the preparation of new complex metal compounds of azo dyes

INDOLENINE DYESTUFFS

Monoazo disperse dyes containing a nitrophenyl group and a homophthalimide group

Sulfaphenyl-azo-phenyl-azo-aminophenyl dyestuffs

INDOLENINE DYESTUFFS

INDOLENINE DYESTUFFS

Liquid crystal composition

New disazo-indole dyes

... 909,766. Disazo indole dyes. BADISCHE ANILIN-& SODA-FABRIK A.G. Jan. 2, 1961 [Jan, 2, 1960], No. 24/61. Class 2(4). The invention comprises dyes of formula where R is H or alkyl of 1 to 4 C atoms and R1 is alkyl of 1 to 4 C atoms or aryl and A and B may contain substituents which do not dissociate in a neutral aqueous medium. The dyes are made by diazotising an appropriate amino-monoazo dye and coupling with the desired indole. Representative of specified values for R are methyl and butyl and for R1 are ethyl, butyl and phenyl and the phenyl radical may contain substituents which do not dissociate in a neutral aqueous medium, e.g. methyl, and bromine groups. Examples of specified substituents for A and B are propyl, methoxy, chlorine, iodine, acetylamino and sulphonamido groups. Preferred dyes are of formula where R 1 is H, Cl, OMe or SO 2 NH 2 , R 2 is H or Me, R 3 and R 4 are H, Me. OMe and OEt and R 5 is Me or Ph. The dyes are used for colouring synthetic or semi-synthetic ...

Monoazo disperse dyes containing a nitrophenyl group and a homophthalimide group

New dyes disazoïques and process for their preparation

DISAZO DYESTUFFS

Method of making basic disazo dyes

Verfahren zur Herstellung von Azoverbindungen der Chinolinreihe

Monoazo disperse dyes containing a nitrophenyl group and a homophthalimide group

Dyes of the formula см. иллюстрацию в PDF-документе where X and Y, for example, can be hydrogen or halogen and R can be alkyl among other substituents. The dyes are derived from an O-nitroaniline diazo component and an N-substituted homophthalimide as coupling component. The dyes are greenish yellow to orange and give clear dyeings of good color strength and having good general fastness properties on polyesters, cellulose esters and in some cases also on polyamides. The fastness to light and the fastness to heat setting are excellent and may easily be influenced by the choice of substituents.

Azo dyes

Sulfaphenyl-azo-phenyl-azo-aminophenyl dyestuffs

Disazo dyestuff which in the form of the free acid correspond to the formula ##STR1## in which W stands for the radical ##STR2## or the radical ##STR3## R 1 stands for hydrogen, an alkyl radical or a phenyl group; R 2 and R 3 , independently of one another, stand for hydrogen, halogen, an alkyl group, an alkoxy group or an acylamino group; R 4 stands for hydrogen, halogen, an alkyl group, an alkoxy group or an acylamino group; R 5 stands for hydrogen, an alkyl group or an alkoxy group; R 6 and R 7 , independently of one another, stand for hydrogen, hydroxy, cyano, halogen, acyloxy, alkoxycarbonyl or phenyl; X stands for an alkylene radical with 1 - 4 carbon atoms; R 8 stands for an alkyl, phenyl, 2-naphthyl or 4-biphenyl group which is not further substituted; R 9 stands for hydrogen or an alkyl group with 1 - 6 carbon atoms which may be substituted by a nitrile, carboxamide or carboxyl group; R 10 stands for a substituent; and n stands for the numbers 0 - 2. This dyestuff is suitable for dyeing synthetic fibers, especially polyamide fibers, with very good fastness to light.

Verfahren zum Faerben und Bedrucken von Gebilden aus Celluloseestern, Polyamiden, Polyurethanen oder linearen Polyestern

Blue to black diazo dyes - comprising nitrophenyl:azo-naphthyl:azo-amino-quinoline derivs.

Disazo dyes of formula (I) are new. (n (I), X1 is Cl, Br, Me, Et, OMe, OEt, MeSO2, EtSO2, substd. carbamoyl or sulphamoyl, or a carboxylic ester gp.; X2 is H, Cl, Br, Me, OMe, NO2 or CN; Z is H, Me, Et, OMe, OEt, Cl or Br; R1 and R2 are H or opt. substd. alkyl, or NR1R2 is pyrrolidino, piperidino, morpholino or hexamethylenimino, provided that NR1R2 is in the 5 or 8 posn. of the quinoline ring. (I) are esp. useful for dyeing or printing cellulosic fibres, including cotton and polyester-cotton blends, e.g. using the process of DE1811796. They give blue to black shades with good fastness to light, solvents and abrasion.

INDOLENINE DYESTUFFS

The dyestuffs are used for dyeing and printing natural and synthetic materials. AND THEIR USE AS COUPLING OR CONDENSATION COMPONENTS FOR THE MANUFACTURE OF BASIC INDOLENINE DYESTUFFS OF THE FORMULA Dihydroindoles of the formula

HYDROINDOLES, COLORANTS INDOLENIQUES ET APPLICATIONS

Liquid crystal composition

A liquid crystal composition of the guest-host type contains a pleochroic dye dissolved therein. The dye molecule has an end group or end groups in the molecule represented by the general formula:



wherein Ro designates a straight chain alkyl group, in which methylene groups not adjacent to the nitrogen atom may be substituted by oxygen atom or sulfur atom; R1 designates an alkyl group having a chain length different from the alkyl group of Ro or a group



in R1 a methylene group not adjacent of the nitrogen atom may be substituted by an oxygen atom or sulfur atom, and R2 designates a hydrogen atom, an alkyl group, alkoxy group, cycloalkyl group or dialkylamino group.

Dihydroindole und Indoleninfarbstoffe

Liquid crystal composition

A liquid crystal composition of the guest-host type contains a pleochroic dye dissolved therein. The dye molecule has an end group or end groups in the molecule represented by the general formula: wherein Ro designates a straight chain alkyl group, in which methylene groups not adjacent to the nitrogen atom may be substituted by oxygen atom or sulfur atom; R1 designates an alkyl group having a chain length different from the alkyl group of Ro or a group in R1 a methylene group not adjacent of the nitrogen atom may be substituted by an oxygen atom or sulfur atom, and R2 designates a hydrogen atom, an alkyl group, alkoxy group, cycloalkyl group or dialkylamino group.

Sulfaphenyl-azo-phenyl-azo-aminophenyl dyestuffs

Disazo dyestuff which in the form of the free acid correspond to the formula см. иллюстрацию в PDF-документе in which W stands for the radical см. иллюстрацию в PDF-документе or the radical см. иллюстрацию в PDF-документе R1 stands for hydrogen, an alkyl radical or a phenyl group; R2 and R3, independently of one another, stand for hydrogen, halogen, an alkyl group, an alkoxy group or an acylamino group; R4 stands for hydrogen, halogen, an alkyl group, an alkoxy group or an acylamino group; R5 stands for hydrogen, an alkyl group or an alkoxy group; R6 and R7, independently of one another, stand for hydrogen, hydroxy, cyano, halogen, acyloxy, alkoxycarbonyl or phenyl; X stands for an alkylene radical with 1 - 4 carbon atoms; R8 stands for an alkyl, phenyl, 2-naphthyl or 4-biphenyl group which is not further substituted; R9 stands for hydrogen or an alkyl group with 1 - 6 carbon atoms which may be substituted by a nitrile, carboxamide or carboxyl group; R10 stands for a substituent; and n ...

LIQUID CRYSTAL COMPOSITION

DISAZO DYESTUFFS CONTAINING A VINYLSULFONYLETHYL TETRAHYDROQUINOLINE RADICAL

DISAZO DYE

NEW MATERIAL:The compound of formula I [X is H, halogen, 1W8C alkyl, 1W8C alkoxy, nitro, cyano, etc,; Y is H, Cl methyl, 1W4C alkoxy or acylamino; R1 and R2 are H, alkenyl, aryl or 1W8C alkyl (substituted with 1W8C alkoxy, cyano, Cl, phenyl, etc.)]. EXAMPLE: The compound of formula II. USE: A dye for dyeing synthetic fiber of cloth such as polyester fiber, etc., in orange W blue color. There is little lowering of the moisture fastness after post-treatment and keeps high fastness after post-treatment. PREPARATION: The amine of formula III is diazotized and coupled with the compound of formula IV. COPYRIGHT: (C)1987,JPO&Japio ...

PERFLUOROALKYL GROUP-CONTAINING AZO COMPOUND, LIQUID CRYSTAL COMPOSITION CONTAINING THE SAME COMPOUND AND LIQUID CRYSTAL DEVICE

PURPOSE: To provide the subject new compound useful as a red or blue dichromatic pigment, excellent in dichroism, tinting strength, solubility and light resistance and exhibiting a high affinity to a new fluorine-based liquid crystal excellent in properties related to TFT method. CONSTITUTION: A compound of formula I (R is an alkoxy, an alkyl, etc.; X is p-phenylene or 1,4-cyclohexylene; Z1 to Z12 are each H, a halogen, etc., m is 3 to 18; n is 0 or 1), e.g. a compound of formula II. The compound of formula II can be obtained, e.g. by dissolving a compound of formula III in a mixture of acetic acid, hydrochloric acid and water, diazotizing it with NaNO2, subsequently adding sulfamic acid thereto, then adding the resultant diazo solution to a coupler solution containing a coupler of formula IV dissolve in a mixture of N-methylpyrrolidone and methanol and reacting the obtained mixture. COPYRIGHT: (C)1993,JPO&Japio ...

Disazo Dyes containing a Tetrahydroquinoline Vinylsulphone Grouping

METHOD OF MAKING DISAZO DYE

Liquid crystal composition

The description is concerned with a liquid crystal composition of the guest-host type which contains a pleochroic dye dissolved therein. The dye molecule has an end group or end groups in the molecule represented by the general formula: where Ro designates a straight chain of alkyl group, in which methylene group not adjacent to the nitrogen atom may be substituted by oxygen atom or sulfer atom; R1 designates an alkyl group having a chain length different from that of the alkyl group of Ro or a group in R1 a methylene group not adjacent to the nitrogen atom may be substituted by oxygen atom or sulfur atom, and R2 designates hydrogen atom, alkyl group, alkoxy group, cycloalkyl group or dialkylamino group.

Monoazo disperse dyes containing a nitrophenyl group and a homophthalimide group

Dyes of the formula I where X and Y, for example, can be hydrogen or halogen and R can be alkyl among other substituents. The dyes are derived from an O-nitroaniline diazo component and an N-substituted homophthalimide as coupling component. The dyes are greenish yellow to orange and give clear dyeings of good color strength and having good general fastness properties on polyesters, cellulose esters and in some cases also on polyamides. The fastness to light and the fastness to heat setting are excellent and may easily be influenced by the choice of substituents.

WATER-SOLUBLE PIGMENT AND PIGMENT COMPOSITION USING THE SAME, ANISOTROPIC PIGMENT FILM AND POLARIZING ELEMENT

PROBLEM TO BE SOLVED: To provide a new water-soluble pigment and a pigment composition using it capable of realizing an anisotropic pigment film excellent in dichroism, and to provide the anisotropic pigment film exhibiting high dichroism and a polarizing element excellent in polarization performance. SOLUTION: This water-soluble pigment has a smaller half width of a main peak of an absorption spectrum measured in an aqueous solution state of 1,000 ppm concentration than that of 10 ppm concentration. COPYRIGHT: (C)2007,JPO&INPIT ...

Azo compounds and material colored therewith

DISAZO DYES AND OBTAINING THEM

Novel disazo dyes

Liquid crystal composition

The description is concerned with a liquid crystal composition of the guest-host type which contains a pleochroic dye dissolved therein. The dye molecule has an end group or end groups in the molecule represented by the general formula: см. иллюстрацию в PDF-документе where Ro designates a straight chain of alkyl group, in which methylene group not adjacent to the nitrogen atom may be substituted by oxygen atom or sulfer atom; R1 designates an alkyl group having a chain length different from that of the alkyl group of Ro or a group см. иллюстрацию в PDF-документе in R1 a methylene group not adjacent to the nitrogen atom may be substituted by oxygen atom or sulfur atom, and R2 designates hydrogen atom, alkyl group, alkoxy group, cycloalkyl group or dialkylamino group.

Azo compounds containing a tetrahydroquinoline nucleus

Nouveaux colorants disazoïques

Quinazoline azo compounds

AZO DYES

COLORANTS DIAZOIQUES ET LEUR OBTENTION

Compound and dye

A compound shown in formula (I) has excellent solubility in an organic solvent and is excellent in being used as the dye of a color filter of a display apparatus such as a liquid crystal display apparatus. In formula (1), R1 represents a hydrogen atom or a monovalent C1-30 alkyl group, wherein the methylene in the alkyl group is substituted by -O-, -CO-, -NR6-, -SO2-, or -S-; R2 represents a hydrogen atom, cyano, or carbamoyl; R3 represents C1-4 alkyl group or trifluoromethyl; A represents phenylene capable of containing a substituent group; M represents a hydrogen atom or an alkali metal atom; Y1 and Y2 represent -O-, -NR6-, or -S-; R6 represents a hydrogen atom or C1-4 alkyl group; Z represents (m+n) valence C1-24 aliphatic alkyl, wherein methylene contained in the aliphatic alkyl is substituted by -O-, -CO-, -NR7-, -SO2-, or -S-, methine group contained in the aliphatic alkyl is substituted by a nitrogen atom, and the hydrogen atom contained in the aliphatic alkyl is substituted by - ...

Disazo dyestuffs and process of making same

DICHROIC COLORING MATTER, LIQUID CRYSTAL COMPOSITION CONTAINING THE SAME, AND LIQUID CRYSTAL ELEMENT

PURPOSE: To obtain a red dichroic coloring matter having high dichroism and high tinting power. CONSTITUTION: This matter is a perfluoroalkylalkylmercapto-containing disazo or trisazo dichroic coloring matter representted, by the formula (wherein R1 and R2 are each alkyl, alkoxyalkyl, fluoroalkyl-substituted alkyl, or (substituted) aralkyl, provided that R and R may be combined with each other to from a nitrogen-containing alicyclic group, Rf is 1-12 C perfluoroalkyl or ω-H- perfluoroalkyl; m is a number of 1 or 2; n is a number of 1-8; and Z$1 to Z19 are each H, halogen, methyl or methoxy; provided that Z1 and Z2, Z14 and Z15, or Z7 and Z8 may be combined with each other in the same pair to form an aliphatic ring, an aromatic ring or a nitrogen-containing aromatic ring). COPYRIGHT: (C)1995,JPO ...

Process for the preparation of a water-soluble disazo dye

NEW DISAZOIC DYES AND THEIR PROCESS FOR OBTAINING

Azo dyes, their preparation and their use

Die Azofarbstoffe der Formel worin D eine Diazokomponente, R₁ und R₂ unabhängig voneinander je ein gegebenenfalls substituierter C₁-C₁₀-Alkyl-, C₅-C₇-Cycloalkyl-, Phenyl- oder Naphthyl-Rest, oder R₁ und R₂ zusammen mit dem sie verbindenden Stickstoffatom ein gegebenenfalls durch Heteroatome substituierter 5-, 6- oder 7-gliedriger Ring, R₃ Wasserstoff, Halogen oder ein gegebenenfalls substituierter C₁-C₁₀-Alkyl, C₁-C₁₀-Alkoxy- oder Phenoxy-Rest, X -CO- oder -SO₂-, n die Zahl 1, 2, 3, 4, 5 oder 6 und M ein Kation ist, ergeben auf stickstoffhaltigen oder hydroxylgruppenhaltigen Fasermaterialien Färbungen von guten Echtheiten. The azo dyes of the formula wherein D is a diazo component, R₁ and R₂ independently of one another each an optionally substituted C₁-C₁₀-alkyl, C₅-C Cycl-cycloalkyl, phenyl or naphthyl radical, or R₁ and R₂ together with the nitrogen atom connecting them an optionally substituted by heteroatoms 5-, 6- or 7-membered ring, R₃ is hydrogen, halogen or an optionally substituted C₁-C₁₀ alkyl, C₁-C₁₀ alkoxy or phenoxy radical, X -CO- or -SO₂-, n is the number 1, 2, 3, 4, 5 or 6 and M is a cation give dyeings of good fastness properties on nitrogenous or hydroxyl group-containing fiber materials.

Azo dyes, processes for their preparation and their use

Azo dyes of the formula (1), in which R1 and R2 independently of one another are unsubstituted or hydroxy-, C1-C4-alkoxy- or halogen-substituted C1-C4-alkyl or C1-C4-alkoxy; unsubstituted or C1-C4-alkyl-, C1-C4-alkoxy- or halogen-substituted phenyl or phenoxy; or a radical of the formula -N(R3)R4, in which R3 und R4 independently of one another are hydrogen, C1-C4-alkyl, or C2-C4-alkanoyl which is unsubstituted or further substituted in the alkyl part by hydroxyl or C1-C4-alkoxy, with the proviso that R1 and R2 are not simultaneously methyl, produce dyeings with good fastnesses on fibre materials containing nitrogen or containing hydroxyl groups.

James h

BISAZOCOLORANTI

COLORANT HETEROCYCLIC COMPOUNDS DERIVED FROM THEM AND PROCEDURE FOR THEIR PRODUCTION AND APPLICATION

Water-soluble dyes and dye intermediates

Dye intermediates are of formula D-R-N-CH2CH2CH2SO3M (where R is an aryl group with 1 or 2 aromatic rings, D is an H atom linked to the nuclear carbon of R in the p-position to the N atom; R1 is a residue linked by an alkyl C atom to the N atom, and M is H, Na, K or NH4). The intermediates are used to prepare water-soluble dyes of the formula A-N=N-R-N-CH2CH2CH2CH2SO3M (where A-N=N- is the coupling residue of a diazotised aromatic or heterocyclic amine or of a diazotised amino-monoazo intermediate. The alkali metal or ammonium salts of (I) have surface-active props. inaqs. soln. The dyes (II) can be used on synth. or natural polyamides and sec. cellulose acetate rayon; certain of the dyes show very good resistant to light and washing.

Manufacture of new azo dyes

Disazo dyes are made by treating an aminodisazo dyestuff R1 --> R2 --> R-NH2, where R1, R2 and R = residues of the benzene or naphthalene series not containing free hydroxyl or amino groups but carrying a total of at least two salt-forming groups, with a nitroaroyl halide, reducing, condensing the resulting aminoaroyl derivative with a nitroaroyl halide, and finally reducing. They dye cotton, wool, silk, and viscose in yellow to brown shades and may be diazotized on the fibre and developed to yield dyeings fast to washing. In examples (1) the dyestuff 2-naphthylamine-6 : 8-disulphonic acid --> m-toluidine --> m-toluidine is p-nitrobenzoylated, reduced, again p-nitrobenzoylated and finally reduced; (m-nitrobenzoyl chloride may be used); it gives a bright orange when developed with b -naphthol and a yellow with 1 - phenyl - 3 - methyl - 5 - pyrazolone. (2) The dyestuff metanilic acid --> 1-naphthylamine-7-sulphonic acid --> m-toluidine is treated as above and may be similarly developed. Specification 303,026, [Class 2 (iii), Dyes &c.], is referred to.

Disazo dyes containing sulphonic acid and indole groups

Disazo dyes contg. sulphonic acid and indole groups. The dyes are of formula: (in which A and B are benzene or naphthalene groups; X, Y, Z and Z1 are selected from hydrogen, chlorine, methyl, ethyl, methoxy, ethoxy, carboxy, carbalkoxy, carbonamide or cyano groups; n is 1 or 2 and Q is a cyano, carbonamide or carboxyl group). They are suitable for dyeing wool, silk and esp. synthetic polyamide textiles, giving colours with outstanding wet- and light-fastness.

DISAZOIC DYES

Disazo dyes containing benzylamino groups

1298280 Disazo dyes BAYER AG 4 Dec 1970 [5 Dec 1969] 57723/70 Heading C4P The invention comprises disazo dyes of formula wherein R 1 is H, Cl, Br, CH 3 , C 2 H 5 , CF 3 , CH 3 O, C 2 H 5 O, HCONH, CH 3 CONH, C 2 H 5 CONH, HOCH 2 CONH, CH 3 SO 2 , C 2 H 5 SO 2 , CH 3 SO 2 NH, C 2 H 5 SO 2 NH, sulphonamido which is optionally mono- or di-alkylated with CH 3 and/or C 2 H 5 and/or CH 2 CH 2 OH, CN, CH 3 CO, C 2 H 5 CO, CH 3 O.CO or C 2 H 5 O.CO, R 2 is H, Cl, Br, CH 3 , C 2 H 3 , OCH 3 , OC 2 H 5 , HCONH CH 3 CONH, C 2 H 5 CONH or HOCH 2 CONH, R 3 is H, CH 3 , CH 3 O or C 2 H 5 O, X and Y are H or SO 3 H one only being SO 3 H and m is an integer from 1 to 5. The dyes are prepared by azo coupling and are used to colour wool, silk, polyurethane and particularly synthetic polyamide fibres in bluish-red shades.

Patent FR2039146B1

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Method of making disazo dye

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Mono-disazoamino-substituierte farbstoffe, zwischenprodukte und verfahren zu ihrer herstellung

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Neue azofarbstoffe und verfahren zu ihrer herstellung

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Disazo dyestuffs containing a vinylsulfonylethyl tetrahydroquinoline radical

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Mono and disazo amino-substituted dyestuffs

Bis-azoverbindungen und ihre Verwendung als Farbstoffe fuer Polyamidfasern

Disulphimidophenyl-azo-naphthyl-azo-aminophenyl dyestuffs

Disazo dyestuffs of the formula ##SPC1## Wherein R 1 represents an aromatic radical, an aliphatic radical with 1-4 C atoms or a dialkylamino radical in which the alkyl groups contain 1-4 C atoms, R 2 represents chlorine, bromine, an alkyl group with 1-4 C atoms, an alkoxy group with 1-4 C atoms or a hydroxyl group, R 3 represents hydrogen, chlorine, bromine, an alkyl group with 1-4 C atoms, an alkoxy group with 1-4 C atoms or an aryloxy group, R 4 represents hydrogen, chlorine, bromine, an alkyl group with 1-4 C atoms, an alkoxy group with 1-4 C atoms or an acylamino group, R 5 represents hydrogen or an alkyl group, R 6 represents an alkyl group, n represents the numbers 0, 1 and 2 and B represents a radical of the formula ##SPC2## Are suitable for dyeing synthetic fiber materials, especially those of polyamides.

Procédé de fabrication de nouveaux colorants substantifs

Verfahren zur Darstellung chromierbarer Disazofarbstoffe.

Verfahren zur Darstellung schwarzfärbender Azofarbstoffe

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Verfahren zur Darstellung eines chromierbaren o-Oxydisazofarbstoffes.

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Quinoline azo dye

Azo dye.

Blaue Diazofarbstoffe

Blaue Diazofarbstoffe

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