CH569762A5 - Azo dyes contg thiophene ring - as disperse dyes for synthetic fibres with good resistance to light - Google Patents

Azo dyes contg thiophene ring - as disperse dyes for synthetic fibres with good resistance to light

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Publication number
CH569762A5
CH569762A5 CH998672A CH998672A CH569762A5 CH 569762 A5 CH569762 A5 CH 569762A5 CH 998672 A CH998672 A CH 998672A CH 998672 A CH998672 A CH 998672A CH 569762 A5 CH569762 A5 CH 569762A5
Authority
CH
Switzerland
Prior art keywords
sep
alkyl
hydrogen
formula
chlorine
Prior art date
Application number
CH998672A
Other languages
German (de)
Original Assignee
Sandoz Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sandoz Ag filed Critical Sandoz Ag
Priority to CH998672A priority Critical patent/CH569762A5/en
Priority to NL7309098A priority patent/NL7309098A/xx
Priority to DE19732333447 priority patent/DE2333447A1/en
Priority to BE133029A priority patent/BE801805A/en
Priority to GB3136173A priority patent/GB1434654A/en
Priority to ES416503A priority patent/ES416503A1/en
Priority to DD17199273A priority patent/DD105821A5/xx
Priority to JP7445873A priority patent/JPS4944031A/ja
Priority to BR4938/73A priority patent/BR7304938D0/en
Priority to PL1973163801A priority patent/PL90271B1/pl
Priority to AR24891673A priority patent/AR198849A1/en
Priority to IT5122573A priority patent/IT989734B/en
Priority to FR7324597A priority patent/FR2190883B1/fr
Priority to AU57728/73A priority patent/AU5772873A/en
Priority to CS4845A priority patent/CS166674B2/cs
Priority to ZA00734547A priority patent/ZA734547B/en
Publication of CH569762A5 publication Critical patent/CH569762A5/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00Monoazo dyes prepared by diazotising and coupling
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00Monoazo dyes prepared by diazotising and coupling
    • C09B29/34Monoazo dyes prepared by diazotising and coupling from other coupling components
    • C09B29/36Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
    • C09B29/3604Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
    • C09B29/3617Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a six-membered heterocyclic with only one nitrogen as heteroatom
    • C09B29/3621Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a six-membered heterocyclic with only one nitrogen as heteroatom from a pyridine ring
    • C09B29/3626Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a six-membered heterocyclic with only one nitrogen as heteroatom from a pyridine ring from a pyridine ring containing one or more hydroxyl groups (or = O)
    • C09B29/3634Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a six-membered heterocyclic with only one nitrogen as heteroatom from a pyridine ring from a pyridine ring containing one or more hydroxyl groups (or = O) from diazotized heterocyclic rings

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Abstract

Azo dyes of formula: (where R1 = CN or opt. substd. phenyl, alkylcarbonyl, benzoyl, alkoxycarbonyl, or phenoxycarbonyl R2 = H, Br, Cl, CN, nitro, alkyl, alkoxy, or opt. substd. phenyl, alkoxy, or phenoxy or R2 and R3 together may complete an aromatic ring and K is the residue of a coupling component) are esp. useful as disperse dyes for dyeing and printing polyesters, cellulose-2 1/2- and -3-acetate, synthetic polyamides, etc. in fast clear shades with good resistance to sublimation, water, solvents chemicals, ozone, chlorine and 'permanent press' and 'soil release' finishes.

Description

  

  
 



  Es wurde gefunden, dass sich Azoverbindungen der Formel
EMI1.1     
 die frei von wasserlöslich machenden Gruppen, insbesondere Sulfonsäuregruppen, sind, ausgezeichnet als Dispersionsfarbstoffe, zum Färben von Fasern oder Fäden oder daraus hergestellten Materialien aus voll- oder halbsynthetischen, hydrophoben, hochmolekularen organischen Stoffen eignen.



   In Formel (I) bedeuten    R,    eine Cyangruppe oder einen gegebenenfalls Substituenten tragenden Alkyl-, Phenyl-, Alkylcarbonyl-, Benzoyl-, Alkoxycarbonyl- oder Phenoxycarbonylrest,
R2 Wasserstoff, Chlor, Brom, eine Cyan-, Rhodan-, Nitrooder eine gegebenenfalls Substituenten tragende Alkyl-, Phenyl-, Alkoxy-, Phenoxy-, Alkylcarbonyl- oder Benzoylgruppe,
R3 Wasserstoff, Chlor, Brom, eine Cyan-, Rhodan-, Nitro-, Acyl-, Acyloxy-, Acylamino- oder eine gegebenenfalls Substituenten tragende Alkyl-, Phenyl-, Alkoxy- oder Phenoxygruppe oder
R2 und R3 zusammen die für die Vervollständigung eines Ringes aromatischen Charakters notwendige, gegebenenfalls Substituenten tragende Atomgruppe und
K den Rest einer Kupplungskomponente bedeuten.



   Bevorzugte Acylgruppen entsprechen der Formel R-Y-   odei    R -Z-, darin bedeuten R einen Kohlenwasserstoffrest, der die oben angeführten Substituenten tragen und/oder Heteroatome enthalten kann, vorzugsweise einen gegebenenfalls substituierten Alkyl- oder Phenylrest,
Y ein Radikal -O-CO-, -SO2- oder -O-SO2-,
R ein Wasserstoffatom oder R,
Z ein Radikal -CO-, -NR"CO- oder -NR"SO2- und
R ein Wasserstoffatom oder R.



   Alle Alkylreste am Molekül enthalten, sofern nicht cyclische Reste gemeint sind, vorzugsweise 1, 2, 3 oder 4 Kohlenstoffatome, unter Alkylresten sind jedoch auch Cycloalkylreste, insbesondere der Cyclohexyl- oder Methylcyclohexylrest zu verstehen. Alle diese Reste können als Substituenten z. B.



  Chlor- oder Bromatome, Cyan-, Alkoxy-, Amino-, Acyl-, Acyloxy-, Acylamino-, Phenyl- oder Phenoxygruppen tragen
Als Substituenten an den Kohlenstoffatomen eines Ringes aromatischen Charakters, womit hier vorzugsweise Phenylringe zu verstehen sind, kommen neben den obengenannten Substituenten noch z. B. Nitro- oder Alkylgruppen in Betracht.



   Bedeuten R2 und   R3    zusammen die für die Vervollständigung eines Ringes aromatischen Charakters notwendige Atom.



  gruppe, so ist insbesondere an eine Gruppe der Formel  -CH = CH-CH = CH- gedacht, die, wie oben angegeben, Substituenten tragen kann.



   Als Kupplunskomponenten kommen alle in der Chemie der Azo-Dispersionsfarbstoffe üblichen Kupplungskomponenten in Betracht, z. B. solche der Formel
EMI1.2     
 oder der Formel
EMI1.3     
 worin
R4 Wasserstoff oder einen gegebenenfalls, wie oben angegebenen, Substituenten tragenden Alkylrest,
Rs einen gegebenenfalls Substituenten tragenden Alkylrest,
R6 Wasserstoff, Chlor oder Brom oder einen Alkyl- oder Acylaminorest,
R7 Wasserstoff, Chlor oder Brom oder einen gegebenenfalls, wie oben angegeben, Substituenten tragenden Alkyloder Alkoxyrest,
Rs Wasserstoff, Amino, Alkylamino, Dialkylamino, Phenylamino oder N-Alkyl-N-phenylamino oder einen gegebenenfalls Substituenten tragenden Alkylrest,    Rs    Wasserstoff, Chlor, Brom, Cyan oder Acyl und    Rlo    Wasserstoff, Alkyl, Phenyl, Alkylcarbonyl, Alkoxycarbonyl oder Phenoxycarbonyl bedeuten.



   Auch vom Naphthalin hergeleitete oder heterocyclische Kupplungskomponenten kommen in Betracht.



   Das Verfahren zur Herstellung der neuen Azoverbindungen ist dadurch gekennzeichnet, dass man ein Amin der Formel
EMI1.4     
 diazotiert und die erhaltene Diazoniumverbindung mit einer Verbindung der Formel
H-K   (V)    kuppelt.



   Die Diazotierung und das Kuppeln werden nach allgemeinen, zum Teil über 100 Jahre bekannten Methoden durchgeführt.



  Im allgemeinen wird die Kupplung in saurem, gegebenenfalls gepuffertem Medium, z. B. im pH-Bereich unter 5, und unter Kühlung, z. B. bei Temperaturen unter   200C,    vorzugsweise zwischen   -5     und +   5 C    durchgeführt. Als Puffersubstanzen kommen vorzugsweise Alkalimetallsalze von niedrigmolekularen Alkansäuren, z. B. Essigsäure oder Propionsäure, insbesondere Natriumacetat, in Betracht.



   Die Verarbeitung der neuen Verbindungen der Formel (I) zu Färbepräparaten erfolgt auf allgemein bekannte Weise, z. B. durch Mahlen in Gegenwart von Dispergier- und/oder Füllmitteln. Mit den gegebenenfalls im Vakuum oder durch Zerstäuben getrockneten Präparaten kann man, nach Zugabe von mehr oder weniger Wasser, in sogenannter langer oder kurzer Flotte färben, klotzen oder bedrucken.



   Die Farbstoffe ziehen aus wässriger Suspension ausgezeichnet auf Textilmaterial aus vollsynthetischen oder halbsynthetischen, hydrophoben, hochmolekularen organischen Stoffen auf. Besonders geeignet sind sie zum Färben oder Bedrucken von Textilmaterial aus linearen, aromatischen Polyestern,  sowie aus Cellulose-2¸-acetat, Cellulosetriacetat und synthetischen Polyamiden. Besonders hervorzuheben ist die mit den neuen Farbstoffen erzielbare Brillanz der Färbungen.



   Man färbt oder bedruckt nach an sich bekannten, z. B. dem in der französischen Patentschrift Nr. 1 445 371 beschriebenen Verfahren.



   Die erhaltenen Färbungen besitzen gute Allgemeinechtheiten; hervorzuheben sind die Lichtechtheit, die Thermofixier-, Sublimier- und Plissierechtheit. Sie sind hervorragend nassecht, z. B. wasser-, meerwasser-, wasch- und schweissecht, lösungsmittelecht, insbesondere trockenreinigungsecht, schmälzmittel-, reib-, überfärbe-, ozon-, rauchgas- und chlorecht; sie sind äusserst beständig gegen die Einwirkung der verschiedenen Permanent-Pressverfahren und der sogenannten  Soil-Release -Ausrüstungen. Die Ätzbarkeit, die Reduktionsbeständigkeit (beim Färben mit Wolle) und die Reserve von Wolle und Baumwolle sind gut.



   Die im folgenden Beispiel genannten Teile sind Gewichtsteile, die Temperaturen sind in Celsiusgraden angegeben.



   Beispiel 1
Man bereitet eine Nitrosylschwefelsäurelösung durch langsames Eintragen von 8 Teilen Natriumnitrit in 150 Teile konzentrierter Schwefelsäure.



   Zu einer Lösung aus 150 Teilen Schwefelsäure konz. und 30 Teilen Eisessig werden bei   0    und unter Rühren 18 Teile 2 Amino-3-cyan-4-methyl-5-nitrothiophen und sodann nochmals 30 Teile Eisessig gegeben. Zur so bereiteten Mischung lässt man, immer unter Rühren und bei 00, die Nitrosylschwefelsäurelösung langsam zufliessen und rührt bei der angegebenen Temperatur noch   ca. 31/2    Stunden nach. Dann wird, zur Zerstörung der überschüssigen Nitrosylschwefelsäure, eine geringe Menge Harnstoff zugegeben. Die Diazoniumsalz Lösung wird sodann, bei etwa 0 , mit einer Lösung von 17,5 Teilen 1-N,N-diäthylamino-3-methylsulfonylaminobenzol in 150 Teilen Eisessig vereinigt und etwa zwei Stunden gerührt.



  Der entstandene Farbstoff wird abfiltriert, mit Wasser gewaschen und getrocknet. Er färbt Polyesterfasermaterial in leuchtend blauen Tönen mit ausgezeichneten Echtheitseigenschaf ten.

 

   In der folgenden Tabelle sind weitere Farbstoffe der Formel
EMI2.1     
 angegeben, die gemäss Beispiel 1 hergestellt werden können   Tabelle 1 Nuance auf Beispiel No. R1 R2 R3 R4 R5 R6 R7 Polyesterfasermaterial 2 -CN -CH3 -NO2 -C2H5 -C2H5 CH3CONH- C2H5O- grünblau 3 -CN -CH3 -NO2 -CH2CH2CN -CH2CH2OCOCH3 CH3CONH- H rotstichig-blau 4 -CN -CH3 Br -C2H5 -C2H5 CH3CONH- H violett 5 -CN -CH3 Cl -CH2CH2OCOCH3 -CH2CH2OCOCH3 CH3CONH H blaustichig-rot 6 -CN -CH3 Cl H -CH2CH2COOCH3 CH3CONH H blaustichig-rot 7 -CN -CH3 Cl -C2H5 -CH2CH2COOC2H5 C2H5CONH- H blaustichig-rot 8 -COOCH3 -CH3 -CN -CH3 -CH2CH2CN H H blaustichig-rot 9 -COOC2H5 -CH3 -NO2 -CH3 -CH3 CH3SO2NH- H rotstichig-blau 10 -CN -C6H5 -NO2 -C2H5 -CH2CH2OCOCH3 H H violett 11 -CN 4-NO2-C6H4- -NO2 -CH2CH2CN -CH2CH2COOC2H5 -CH3 H rostichig-blau 12 -CN -CH3 CH3SO2- -CH2CH2COOC2H5 -CH2CH2CN -CH3 H violett       <RTI  

    ID=3.1> Tabelle 1 (Fortsetzung) Nuance auf Beispiel No. R1 R2 R3 R4 R5 R6 R7 Polyesterfasermaterial 13 -CN -CH3 C6H5SO2- -CH2CH2COOC2H5 -C2H5 CH3OCH2CH2CONH- H blau 14 -COOCH3 -CH3 CH3SO2- -CH2CH2COOC2H5 -C2H5 CH3SO2NH- H violett 15 -COOC2H5 -CH3 (CH3)2NSO2 -CH2CH2COOC2H5 -C2H5 H H rot 16 -CN -CH3 Br -CH2CH2OCOCH3 -CH2CH2OCOCH3 ClCH2CH2CONH- -OC2H5 blaustichig-rot 17 4-NO2-C6H4 -CH3 -NO2 -C2H5 -C2H5 -NHCOOCH2CH2OC2H5 H blau 18 4-NO2-C6H4 -CH3 Br -CH2CH2OCH2 H CH3OCONH- H rotstichig-blau CH3OCO-CH CH2Cl 19 C6H5CO- -CH3 -NO2 -C2H5 -C2H5 CH3CONH- OC2H5 blau 20 -COOCH3 -CH3 -NO2 -C2H5 -C2H40-C6H5 H H blaustichig-rot 21 -COOCH3 -NO2- C6H5 H -CH2CH-CH2OCH3 CH3CH2CONH- H rotstichig-blau OH 22 -CN -NO2 -CH3 H -CH2CH2COCH3 H H rot 23 -CN -C6H5 -CH3 -CH2CH2CN -CH2CH2SO2CH3 H H rot 24 -CN -CH3 -COOC2H5 -CH2CH2OCOOC2H5 -CH2CH2OCOOC2H5 H H rot 25 -COOC2H5 -CH3 -COOC2H5 -C2H5 -CH2CH2COOC2H5 H H rot 

   26 -COOC2H5 -CH3 -COCH3 -C2H5 -CH2CH2COOC2H5 H H rot 27 -CN -CH3 -COCH3 -CH2CH2OCOOC2H5 -CH2CH2OCOOC2H5 H H rot Auch die Farbstoffe der folgenden Tabelle 2 können analog zur Arbeitsweise des Beispiels 1 hergestellt werden; in ihnen entsprechen die Symbole denen der Formel (VI).     



     Tabelle 2 Beispiel No. R1 R2 R3 Kupplungskomponente Nuance auf Polyesterfa sermaterial 28 -CN -CH3 -NO2 1-[ss-(n-Butoxycarbonyl)-äthylamino]-naphthalin blau 29 -COOCH3 -CH3 -NO2 1-[ss-(n-Butoxycarbonyl)-äthylamino]-naphthalin rotstichig-blau 30 -CN -C6H5 -CN 1-Phenyl-3-äthoxycarbonyl-pyrazolon rot 31 4-NO2-C6H4- -CH3 -NO2 para-Cresol rot 32 4-NO2-C6H4 -CH3 -SO2CH3 2-ss(-Äthoxycarbonyl)-äthylamino-anisol blaustichig-rot   
EMI4.1     


<tb>  <SEP> cD
<tb>  <SEP> 5
<tb>  <SEP> CHi
<tb> 33 <SEP> -CN <SEP> -CH3 <SEP> -NO2 <SEP> H3C- <SEP> CO- <SEP> blaustichig-rot
<tb>  <SEP> CH3
<tb>  <SEP> UZ-V
<tb>  <SEP> X
<tb>  <SEP> z
<tb>  <SEP> 8
<tb>  <SEP> v
<tb>  <SEP> oz
<tb>  <SEP> v
<tb>  <SEP> I
<tb>  <SEP> v
<tb>  <SEP> I
<tb>    34 -CN -CH3 -NO2 3-ss(-Ätoxycarbonyl)-äthylamino-chlorbenzol blaustichig-rot Beispiel No.

  R1 R2 R3 R4 R5 R6 R7 Nuance auf Polyesterfaser @ material 35 -CN -CH=CH-CH=CH- -C2H5 -C2H5 -NHCOCH3 -OC2H5 blau 36 -CN -CH=CH-CH=CH- -CH2CH2OCOCH3 -CH2CH2CN -NHCOCH3 H blaustichig-rot 37 -COOCH3 -CH=CH-CH=CH- -C3H5 -C2H5 -NHSO2CH3 H blaustichig-rot 38 -CN -CH=CH-CH=CH- C2H5 -C2H5 -NHCOOCH2- H violett CH2OCOC2H5 Diazokomponente   
EMI4.2     


<tb>  <SEP> 1
<tb>  <SEP> g <SEP> a <SEP> 9
<tb>  <SEP> x <SEP> x
<tb>  <SEP> U <SEP> cS
<tb>  <SEP> o <SEP> o
<tb>  <SEP> I
<tb>  <SEP> N <SEP> cS:
<tb>  <SEP> CN
<tb> 39 <SEP> O2N <SEP> -C2115 <SEP> -C2H5 <SEP> -NHSO2C2R5 <SEP> H <SEP> blau
<tb>  <SEP> CO- <SEP> v <SEP> Nv
<tb> 40 <SEP> O2N
<tb>  <SEP> l <SEP> l <SEP> I
<tb>  <SEP> CN
<tb> 41 <SEP> Br
<tb>  <SEP> m
<tb>  <SEP> vl
<tb>  <SEP> vZ82
<tb>  <SEP> ZtS <SEP> Z°S <SEP> m
<tb>  <SEP> o <SEP> o
<tb>  <SEP> O <SEP> H
<tb>      Tabelle 2 (Fortsetzung) Beispiel No. 

  Diazokomponente R4 R5 R6 R7 Nuance auf Polyesterfasermaterial   
EMI5.1     


<tb>  <SEP> 1 <SEP> 1
<tb>  <SEP> 42 <SEP> Cl%·L <SEP> - <SEP> C2H5 <SEP> - <SEP> C2H5 <SEP> - <SEP> NHCOCH2CH2OC2H5 <SEP> H <SEP> rotstichig-blau
<tb>  <SEP> M
<tb>  <SEP> OH
<tb>  <SEP> o
<tb> 43 <SEP> Clff <SEP> rot
<tb>  <SEP> 5
<tb>  <SEP> xS <SEP> Ï
<tb>  



  
 



  It has been found that azo compounds of the formula
EMI1.1
 which are free from water-solubilizing groups, especially sulfonic acid groups, are excellent as disperse dyes, suitable for dyeing fibers or threads or materials made from them made from fully or semi-synthetic, hydrophobic, high molecular weight organic substances.



   In formula (I), R, a cyano group or an alkyl, phenyl, alkylcarbonyl, benzoyl, alkoxycarbonyl or phenoxycarbonyl radical which may carry substituents,
R2 is hydrogen, chlorine, bromine, a cyano, rhodium, nitro or an optionally substituent-bearing alkyl, phenyl, alkoxy, phenoxy, alkylcarbonyl or benzoyl group,
R3 is hydrogen, chlorine, bromine, a cyano, rhodium, nitro, acyl, acyloxy, acylamino or an optionally substituted alkyl, phenyl, alkoxy or phenoxy group or
R2 and R3 together represent the atomic group which may be required to complete a ring of aromatic character and which may carry substituents and
K mean the remainder of a coupling component.



   Preferred acyl groups correspond to the formula R-Y- or R -Z-, in which R is a hydrocarbon radical which can carry the substituents listed above and / or contain heteroatoms, preferably an optionally substituted alkyl or phenyl radical,
Y is a radical -O-CO-, -SO2- or -O-SO2-,
R is a hydrogen atom or R,
Z is a radical -CO-, -NR "CO- or -NR" SO2- and
R is a hydrogen atom or R.



   Unless cyclic radicals are meant, all alkyl radicals on the molecule preferably contain 1, 2, 3 or 4 carbon atoms, but alkyl radicals also include cycloalkyl radicals, in particular the cyclohexyl or methylcyclohexyl radical. All these radicals can be used as substituents, for. B.



  Carry chlorine or bromine atoms, cyano, alkoxy, amino, acyl, acyloxy, acylamino, phenyl or phenoxy groups
As substituents on the carbon atoms of a ring of aromatic character, which are preferably to be understood here as phenyl rings, in addition to the above-mentioned substituents, there are also e.g. B. nitro or alkyl groups.



   R2 and R3 together mean the atom necessary to complete a ring of aromatic character.



  group, then in particular a group of the formula -CH = CH-CH = CH- is intended which, as stated above, can carry substituents.



   Suitable coupling components are all coupling components customary in the chemistry of azo disperse dyes, e.g. B. those of the formula
EMI1.2
 or the formula
EMI1.3
 wherein
R4 is hydrogen or an alkyl radical optionally bearing substituents as specified above,
Rs an alkyl radical optionally bearing substituents,
R6 is hydrogen, chlorine or bromine or an alkyl or acylamino radical,
R7 is hydrogen, chlorine or bromine or an alkyl or alkoxy radical optionally bearing substituents as stated above,
Rs denotes hydrogen, amino, alkylamino, dialkylamino, phenylamino or N-alkyl-N-phenylamino or an optionally substituted alkyl radical, Rs denotes hydrogen, chlorine, bromine, cyano or acyl and Rlo denotes hydrogen, alkyl, phenyl, alkylcarbonyl, alkoxycarbonyl or phenoxycarbonyl.



   Coupling components derived from naphthalene or heterocyclic coupling components are also suitable.



   The process for the preparation of the new azo compounds is characterized in that one uses an amine of the formula
EMI1.4
 diazotized and the diazonium compound obtained with a compound of the formula
H-K (V) couples.



   Diazotization and coupling are carried out according to general methods, some of which have been known for over 100 years.



  In general, the coupling is carried out in an acidic, optionally buffered medium, e.g. B. in the pH range below 5, and with cooling, z. B. carried out at temperatures below 200C, preferably between -5 and + 5C. The buffer substances used are preferably alkali metal salts of low molecular weight alkanoic acids, e.g. B. acetic acid or propionic acid, especially sodium acetate, into consideration.



   The processing of the new compounds of the formula (I) to dye preparations is carried out in a generally known manner, e.g. B. by grinding in the presence of dispersants and / or fillers. The preparations, optionally dried in vacuo or by atomization, can, after the addition of more or less water, be used for dyeing, padding or printing in what is known as a long or short liquor.



   The dyes are extremely well absorbed from aqueous suspension on textile material made of fully synthetic or semi-synthetic, hydrophobic, high molecular weight organic substances. They are particularly suitable for dyeing or printing textile material made of linear, aromatic polyesters, and of cellulose-2¸-acetate, cellulose triacetate and synthetic polyamides. Particularly noteworthy is the brilliance of the colorations that can be achieved with the new dyes.



   One dyes or prints according to known, z. B. the method described in French Patent No. 1,445,371.



   The dyeings obtained have good all-round fastness properties; The light fastness, the heat-setting, sublimation and pleating fastness are to be emphasized. They are excellent wetfast, e.g. B. water, sea water, washing and sweat-proof, solvent-proof, especially dry-cleaning-proof, lubricant, rubbing, over-dyeing, ozone, smoke gas and chlorine law; they are extremely resistant to the effects of the various permanent pressing processes and the so-called soil release equipment. Etchability, resistance to reduction (when dyeing with wool) and the reserve of wool and cotton are good.



   The parts mentioned in the following example are parts by weight, the temperatures are given in degrees Celsius.



   example 1
A nitrosylsulfuric acid solution is prepared by slowly adding 8 parts of sodium nitrite to 150 parts of concentrated sulfuric acid.



   Concentrated to a solution of 150 parts of sulfuric acid. and 30 parts of glacial acetic acid are added at 0 and with stirring, 18 parts of 2-amino-3-cyano-4-methyl-5-nitrothiophene and then a further 30 parts of glacial acetic acid. The nitrosylsulfuric acid solution is allowed to slowly flow in to the mixture prepared in this way, always with stirring and at 00, and stirring is continued at the specified temperature for about 31/2 hours. Then a small amount of urea is added to destroy the excess nitrosylsulfuric acid. The diazonium salt solution is then combined at about 0 with a solution of 17.5 parts of 1-N, N-diethylamino-3-methylsulfonylaminobenzene in 150 parts of glacial acetic acid and stirred for about two hours.



  The resulting dye is filtered off, washed with water and dried. It dyes polyester fiber material in bright blue tones with excellent fastness properties.

 

   The table below shows further dyes of the formula
EMI2.1
 indicated, which can be prepared according to Example 1 Table 1 Nuance on Example No. R1 R2 R3 R4 R5 R6 R7 polyester fiber material 2 -CN -CH3 -NO2 -C2H5 -C2H5 CH3CONH- C2H5O- green-blue 3 -CN -CH3 -NO2 -CH2CH2CN -CH2CH2OCOCH3 CH3CONH- H reddish-blue 4 -CN -CH3 Br -C2H5 C2H5 CH3CONH- H purple 5 -CN -CH3 Cl -CH2CH2OCOCH3 -CH2CH2OCOCH3 CH3CONH H bluish-red 6 -CN -CH3 Cl H -CH2CH2COOCH3 CH3CONH H bluish-red 7 -CN -CH3 Cl -C2H5 -CH2CH5-C2HOC2H5-CH2CH2HOC2H5-red 8 -COOCH3 -CH3 -CN -CH3 -CH2CH2CN HH bluish red 9 -COOC2H5 -CH3 -NO2 -CH3 -CH3 CH3SO2NH- H reddish blue 10 -CN -C6H5 -NO2 -C2H5 -CH2CH2OCOCH3 HH violet 11 -CN 4- NO2-C6H4- -NO2 -CH2CH2CN -CH2CH2COOC2H5 -CH3 H rusty-blue 12 -CN -CH3 CH3SO2- -CH2CH2COOC2H5 -CH2CH2CN -CH3 H violet <RTI

    ID = 3.1> Table 1 (continued) Nuance on Example No. R1 R2 R3 R4 R5 R6 R7 polyester fiber material 13 -CN -CH3 C6H5SO2- -CH2CH2COOC2H5 -C2H5 CH3OCH2CH2CONH- H blue 14 -COOCH3 -CH3 CH3SO2- -CH2CH2COOC2H5 -C2H5 CH3SO2 -CH2NH2) violet C2H5 HH red 16 -CN -CH3 Br -CH2CH2OCOCH3 -CH2CH2OCOCH3 ClCH2CH2CONH- -OC2H5 bluish red 17 4-NO2-C6H4 -CH3 -NO2 -C2H5 -C2H5 -NHCOOCH2CH2OC2H5 H blue 18-4-NO2- CH3OCONH- H red-tinged blue CH3OCO-CH CH2Cl 19 C6H5CO- -CH3 -NO2 -C2H5 -C2H5 CH3CONH- OC2H5 blue 20 -COOCH3 -CH3 -NO2 -C2H5 -C2H40-C6H5 HH blue-tinged-red 21 -CO2- -CH2CH-CH2OCH3 CH3CH2CONH- H reddish blue OH 22 -CN -NO2 -CH3 H -CH2CH2COCH3 HH red 23 -CN -C6H5 -CH3 -CH2CH2CN -CH2CH2SO2CH3 HH red 24 -CN -CH3 -COOC2H5 -CH2HO-OOC2H5 -CH2HO-OOC2 -COOC2H5 -CH3 -COOC2H5 -C2H5 -CH2CH2COOC2H5 HH red

   26 -COOC2H5 -CH3 -COCH3 -C2H5 -CH2CH2COOC2H5 H H red 27 -CN -CH3 -COCH3 -CH2CH2OCOOC2H5 -CH2CH2OCOOC2H5 H H red The dyes in Table 2 below can also be prepared analogously to the procedure of Example 1; in them the symbols correspond to those of the formula (VI).



     Table 2 Example No. R1 R2 R3 Coupling component shade on polyester fiber material 28 -CN -CH3 -NO2 1- [ss- (n-butoxycarbonyl) -äthylamino] -naphthalene blue 29 -COOCH3 -CH3 -NO2 1- [ss- (n-butoxycarbonyl) -äthylamino ] -naphthalene reddish blue 30 -CN -C6H5 -CN 1-phenyl-3-ethoxycarbonyl-pyrazolone red 31 4-NO2-C6H4- -CH3 -NO2 para-cresol red 32 4-NO2-C6H4 -CH3 -SO2CH3 2- ss (ethoxycarbonyl) ethylamino anisole bluish red
EMI4.1


<tb> <SEP> cD
<tb> <SEP> 5
<tb> <SEP> CHi
<tb> 33 <SEP> -CN <SEP> -CH3 <SEP> -NO2 <SEP> H3C- <SEP> CO- <SEP> bluish-red
<tb> <SEP> CH3
<tb> <SEP> UZ-V
<tb> <SEP> X
<tb> <SEP> e.g.
<tb> <SEP> 8
<tb> <SEP> v
<tb> <SEP> oz
<tb> <SEP> v
<tb> <SEP> I
<tb> <SEP> v
<tb> <SEP> I
<tb> 34 -CN -CH3 -NO2 3-ss (-Atoxycarbonyl) -äthylamino-chlorobenzene bluish-red Example No.

  R1 R2 R3 R4 R5 R6 R7 shade on polyester fiber @ material 35 -CN -CH = CH-CH = CH- -C2H5 -C2H5 -NHCOCH3 -OC2H5 blue 36 -CN -CH = CH-CH = CH- -CH2CH2OCOCH3 -CH2CH2CN - NHCOCH3 H bluish red 37 -COOCH3 -CH = CH-CH = CH- -C3H5 -C2H5 -NHSO2CH3 H bluish-red 38 -CN -CH = CH-CH = CH- C2H5 -C2H5 -NHCOOCH2- H violet CH2OCOC2H5 diazo component
EMI4.2


<tb> <SEP> 1
<tb> <SEP> g <SEP> a <SEP> 9
<tb> <SEP> x <SEP> x
<tb> <SEP> U <SEP> cS
<tb> <SEP> o <SEP> o
<tb> <SEP> I
<tb> <SEP> N <SEP> cS:
<tb> <SEP> CN
<tb> 39 <SEP> O2N <SEP> -C2115 <SEP> -C2H5 <SEP> -NHSO2C2R5 <SEP> H <SEP> blue
<tb> <SEP> CO- <SEP> v <SEP> Nv
<tb> 40 <SEP> O2N
<tb> <SEP> l <SEP> l <SEP> I
<tb> <SEP> CN
<tb> 41 <SEP> Br
<tb> <SEP> m
<tb> <SEP> from left
<tb> <SEP> vZ82
<tb> <SEP> ZtS <SEP> Z ° S <SEP> m
<tb> <SEP> o <SEP> o
<tb> <SEP> O <SEP> H
<tb> Table 2 (continued) Example No.

  Diazo component R4 R5 R6 R7 shade on polyester fiber material
EMI5.1


<tb> <SEP> 1 <SEP> 1
<tb> <SEP> 42 <SEP> Cl% L <SEP> - <SEP> C2H5 <SEP> - <SEP> C2H5 <SEP> - <SEP> NHCOCH2CH2OC2H5 <SEP> H <SEP> reddish-blue
<tb> <SEP> M
<tb> <SEP> OH
<tb> <SEP> o
<tb> 43 <SEP> Clff <SEP> red
<tb> <SEP> 5
<tb> <SEP> xS <SEP> Ï
<tb>

 

Claims (1)

PATENTANSPRÜCHE I. Verfahren zur Herstellung in Wasser schwer löslicher Azoverbindungen der Formel EMI5.2 worin Rl eine Cyangruppe oder einen gegebenenfalls Substituenten tragenden Alkyl-, Phenyl-, Alkylcarbonyl-, Benzoyl-, Alkoxycarbonyl- oder Phenoxycarbonylrest, R2 Wasserstoff, Chlor, Brom, eine Cyan-, Rhodan-, Nitrooder eine gegebenenfalls Substituenten tragende Alkyl-, Phenyl-, Alkoxy-, Phenoxy-, Alkylcarbonyl- oder Benzoylgruppe, R3 Wasserstoff, Chlor, Brom, eine Cyan-, Rhodan-, Nitro-, Acyl-, Acyloxy-, Acylamino- oder eine gegebenenfalls Substituenten tragende Alkyl-, Phenyl-, Alkoxy- oder Phenoxygruppe oder R2 und R3 zusammen die für die Vervollständigung eines Ringes aromatischen Charakters notwendige, PATENT CLAIMS I. Process for the preparation of azo compounds of the formula which are sparingly soluble in water EMI5.2 wherein Rl is a cyano group or an optionally substituent-bearing alkyl, phenyl, alkylcarbonyl, benzoyl, alkoxycarbonyl or phenoxycarbonyl radical, R2 is hydrogen, chlorine, bromine, a cyano, rhodium, nitro or an optionally substituent-bearing alkyl, phenyl, alkoxy, phenoxy, alkylcarbonyl or benzoyl group, R3 is hydrogen, chlorine, bromine, a cyano, rhodium, nitro, acyl, acyloxy, acylamino or an optionally substituted alkyl, phenyl, alkoxy or phenoxy group or R2 and R3 together have the aromatic character necessary to complete a ring, gegebenenfalls Substituenten tragende Atomgruppe und K den Rest einer Kupplungskomponente bedeuten und das Molekül von wasserlöslich machenden Gruppen frei ist, dadurch gekennzeichnet, dass man ein Amin der Formel EMI5.3 diazotiert und die erhaltene Diazoniumverbindung mit einer Verbindung der Formel H-K (V) kuppelt. atomic group optionally bearing substituents and K denotes the remainder of a coupling component and the molecule is free of water-solubilizing groups, characterized in that an amine of the formula EMI5.3 diazotized and the diazonium compound obtained with a compound of the formula H-K (V) couples. II. Die nach dem Verfahren gemäss Patentanspruch I erhaltenen Verbindungen der Formel (I). II. The compounds of the formula (I) obtained by the process according to claim I. UNTERANSPRÜCHE 1. Verfahren gemäss Patentanspruch I, dadurch gekennzeichnet, dass die Kupplung mit einer Verbindung der Formel EMI5.4 worin R4 Wasserstoff oder einen gegebenenfalls Substituenten tragenden Alkylrest, Rs einen gegebenenfalls Substituenten tragenden Alkylrest, R6 Wasserstoff, Chlor, Brom, Alkyl oder Acylamino und R7 Wasserstoff, Chlor oder Brom oder einen gegebenenfalls Substituenten tragenden Alkyl- oder Alkoxyrest bedeuten, durchgeführt wird. SUBCLAIMS 1. The method according to claim I, characterized in that the coupling with a compound of the formula EMI5.4 wherein R4 is hydrogen or an alkyl radical optionally bearing substituents, Rs an alkyl radical optionally bearing substituents, R6 is hydrogen, chlorine, bromine, alkyl or acylamino and R7 is hydrogen, chlorine or bromine or an alkyl or alkoxy radical which may or may not carry substituents. 2. Verfahren gemäss Patentanspruch I, dadurch gekennzeichnet, dass die Kupplung mit einer Verbindung der Formel EMI6.1 worin Ra Wasserstoff, Amino, Alkylamino, Dialkylamino, Phenylamino oder N-Alkyl-N-phenylamino oder einen gegebenenfalls Substituenten tragenden Alkylrest, Rs Wasserstoff, Chlor, Brom, Cyan oder Acyl und Rlo Wasserstoff, Alkyl, Phenyl, Alkylcarbonyl, Alkoxycarbonyl oder Phenoxycarbonyl bedeuten, durchgeführt wird. 2. The method according to claim I, characterized in that the coupling with a compound of the formula EMI6.1 where Ra is hydrogen, amino, alkylamino, dialkylamino, phenylamino or N-alkyl-N-phenylamino or an optionally substituted alkyl radical, Rs is hydrogen, chlorine, bromine, cyano or acyl and Rlo is hydrogen, alkyl, phenyl, alkylcarbonyl, alkoxycarbonyl or phenoxycarbonyl , is carried out.
CH998672A 1972-07-04 1972-07-04 Azo dyes contg thiophene ring - as disperse dyes for synthetic fibres with good resistance to light CH569762A5 (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
CH998672A CH569762A5 (en) 1972-07-04 1972-07-04 Azo dyes contg thiophene ring - as disperse dyes for synthetic fibres with good resistance to light
NL7309098A NL7309098A (en) 1972-07-04 1973-06-29
DE19732333447 DE2333447A1 (en) 1972-07-04 1973-06-30 Azo compounds difficult to dissolve in water, their production and use
BE133029A BE801805A (en) 1972-07-04 1973-07-02 NEW NITROGEN COLORANTS WITH LOW WATER SOLUBLE AND THEIR PREPARATION
GB3136173A GB1434654A (en) 1972-07-04 1973-07-02 Thiophene azo dyestuffs
ES416503A ES416503A1 (en) 1972-07-04 1973-07-02 Thiophene azo dyestuffs
DD17199273A DD105821A5 (en) 1972-07-04 1973-07-02
JP7445873A JPS4944031A (en) 1972-07-04 1973-07-03
BR4938/73A BR7304938D0 (en) 1972-07-04 1973-07-03 PROCESS FOR THE PREPARATION OF AZOIC COMPOUNDS DIFFICULTLY SOLUBLE IN WATER
PL1973163801A PL90271B1 (en) 1972-07-04 1973-07-03
AR24891673A AR198849A1 (en) 1972-07-04 1973-07-04 AZOIC COLORS POORLY SOLUBLE IN WATER AND PROCEDURE FOR PREPARING THEM
IT5122573A IT989734B (en) 1972-07-04 1973-07-04 AZO COMPOUNDS DIFFICULTLY SOLU BLE IN WATER PREPARATION PROCEDURE AND THEIR USE FOR THE DYEING OF ORGANIC COMPOUNDS
FR7324597A FR2190883B1 (en) 1972-07-04 1973-07-04
AU57728/73A AU5772873A (en) 1972-07-04 1973-07-04 Azo compounds
CS4845A CS166674B2 (en) 1972-07-04 1973-07-04
ZA00734547A ZA734547B (en) 1972-07-04 1973-07-04 Azo compounds of low water-solubility

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH998672A CH569762A5 (en) 1972-07-04 1972-07-04 Azo dyes contg thiophene ring - as disperse dyes for synthetic fibres with good resistance to light

Publications (1)

Publication Number Publication Date
CH569762A5 true CH569762A5 (en) 1975-11-28

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CH998672A CH569762A5 (en) 1972-07-04 1972-07-04 Azo dyes contg thiophene ring - as disperse dyes for synthetic fibres with good resistance to light

Country Status (6)

Country Link
BE (1) BE801805A (en)
BR (1) BR7304938D0 (en)
CH (1) CH569762A5 (en)
CS (1) CS166674B2 (en)
PL (1) PL90271B1 (en)
ZA (1) ZA734547B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH584257A5 (en) * 1973-09-06 1977-01-31 Sandoz Ag

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PL90271B1 (en) 1977-01-31
CS166674B2 (en) 1976-03-29
BR7304938D0 (en) 1974-08-29
ZA734547B (en) 1975-02-26
BE801805A (en) 1974-01-02

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