CH317764A - Process for the preparation of a new disazo dye - Google Patents
Process for the preparation of a new disazo dyeInfo
- Publication number
- CH317764A CH317764A CH317764DA CH317764A CH 317764 A CH317764 A CH 317764A CH 317764D A CH317764D A CH 317764DA CH 317764 A CH317764 A CH 317764A
- Authority
- CH
- Switzerland
- Prior art keywords
- disazo dye
- parts
- preparation
- coupling
- carried out
- Prior art date
Links
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 5
- 238000002360 preparation method Methods 0.000 title description 2
- 239000002270 dispersing agent Substances 0.000 claims description 6
- WQOWBWVMZPPPGX-UHFFFAOYSA-N 2,6-diaminoanthracene-9,10-dione Chemical compound NC1=CC=C2C(=O)C3=CC(N)=CC=C3C(=O)C2=C1 WQOWBWVMZPPPGX-UHFFFAOYSA-N 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- KYYRTDXOHQYZPO-UHFFFAOYSA-N n-(2-methoxyphenyl)-3-oxobutanamide Chemical compound COC1=CC=CC=C1NC(=O)CC(C)=O KYYRTDXOHQYZPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000000080 wetting agent Substances 0.000 claims description 3
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 230000005012 migration Effects 0.000 claims description 2
- 238000013508 migration Methods 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000009736 wetting Methods 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- -1 disazo carbate Chemical compound 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
- C09B35/02—Disazo dyes
- C09B35/021—Disazo dyes characterised by two coupling components of the same type
- C09B35/033—Disazo dyes characterised by two coupling components of the same type in which the coupling component is an arylamide of an o-hydroxy-carboxylic acid or of a beta-keto-carboxylic acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines neuen Disazofarbstoffes Es wurde gefunden, dass man zu einem wertvollen, wasserunlöslichen Disazofarbstoff gelangen kann, wenn man tetrazotiertes 2,6- Diaminoanthrachinon beidseitig mit 1-Aceto- acetylamino-2-methoxybenzol kuppelt.
Der neue Disazofarbatoff ist in trockenem Zustande ein oranges Pulver, das sieh in kon zentrierter Schwefelsäure mit rotstichig gel ber Farbe löst und das, in Polyvinylchlorid eingewalzt, reingelbe Färbungen von sehr guter Migrations- und Lichtechtheit ergibt.
2,6-Diaminoanthrachinon kann man in an sich bekannter Weise, zweckmässig in konzen trierter Schwefelsäure, mittels Alkalinitrit tetramtieren. Es empfiehlt sich in der Regel, die Tetrazoverbindung abzuscheiden und zu isolieren.
Die Kupplung der so erhältlichen Tetrazo- verbindung mit der angegebenen Azokompo- nente wird vorteilhaft in schwach saurem, z.13. essigsaurem, Medium durchgeführt, wo bei es sich im allgemeinen als zweckmässig erweist, dem Kupplungsgemisch ein Netz- oder Dispergiermittel zuzusetzen. Hierbei kommen Netz- und Dispergiermittel ionogener und nichtionogener Art in Betracht.
Als Disper- giermittel ionogener Art kann beispielsweise Türkischrotöl verwendet werden, und als Dispergiermittel nichtionogener Art seien Polyglykoläther von höhermolekularen Fett alkoholen erwähnt.
Im nachfolgenden Beispiel bedeuten, wo nichts anderes vermerkt wird, die Teile Ge- wichtsteile, die Prozente Gewichtsprozente, und die Temperaturen sind in Celsiusgraden angegeben.
<I>Beispiel</I> 400 Teile 98o/oige Schwefelsäure werden auf 0 gekühlt und unter Rühren 28 Teile 100 /oiges Natriumnitrit eingetragen. Man er wärmt dann auf 55 bis 60 , bis klare Lösung eintritt, kühlt dann auf 30 ab und trägt bei 30 bis 40o- 47,6 Teile 2,6-Diaminoanthrachinon ein. Nach beendetem Eintragen erwärmt man die dicke, gelbe Suspension langsam auf<B>-50</B> bis 60 , bis wieder klare Lösung eintritt. Man hält 30 Minuten auf dieser Temperatur, lässt dann auf 30 erkalten und trägt die Lösung auf 600 Teile Eis urid 100 Teile Wasser aus.
Die Tetrazoverbindung scheidet sich als Sul fat in gelblichweissen Kristallen ab. Man rührt 30 Minuten bei 0 bis 5 , filtriert und presst gut ab.
41,4 Teile 1-Acetoacetylamino-2-methoxy- benzol werden mit 30 Teilen 30o/oiger Na triumhydroxydlösung in 300 Teilen Wasser bei 30 gelöst. Man fügt ein Dispergiermittel wie Türkischrotöl hinzu und stellt die Lösung durch Zugabe von Eis und Wasser auf ein ' Volumen von 800 Teilen und einer Tempera tur von 5 ein.
Dann säuert man mit verdünnter Essig säure bis zur lackmussauren Reaktion an, gibt 60 Teile kristallisiertes Natriumacetat hinzu und lässt unter gutem Rühren in etwa 30 Mi nuten eine Lösung der Tetrazoverbindung aus 23,8. Teilen 2,6-Diaminoanthrachinon in 1000 Teilen Wasser hinzufliessen. Man rührt zwei Stunden bei 5 bis 8 und erwärmt dann in einer Stunde auf 35 bis 40 und rührt bei dieser Temperatur vier Stunden weiter. Dann filtriert man, wäscht den Farbstoff salzfrei und trocknet ihn im Vakuum bei 50 bis 60 .
Process for the preparation of a new disazo dye It has been found that a valuable, water-insoluble disazo dye can be obtained if tetrazotized 2,6-diaminoanthraquinone is coupled on both sides with 1-acetoacetylamino-2-methoxybenzene.
The new disazo carbate is an orange powder when dry, which dissolves in concentrated sulfuric acid with a reddish-tinged yellow color and which, when rolled into polyvinyl chloride, gives pure yellow colorations of very good migration and lightfastness.
2,6-Diaminoanthraquinone can be tetramized in a manner known per se, expediently in concentrated sulfuric acid, using alkali metal nitrite. As a rule, it is advisable to separate and isolate the tetrazo compound.
The coupling of the tetrazo compound thus obtainable with the specified azo component is advantageously carried out in a weakly acidic, e.g. acetic acid, carried out medium, where it proves to be useful in general to add a wetting agent or dispersant to the coupling mixture. Wetting agents and dispersants of the ionic and non-ionic type come into consideration here.
Turkish red oil, for example, can be used as the dispersant of the ionic type, and polyglycol ethers of higher molecular weight fatty alcohols may be mentioned as the dispersant of the nonionic type.
In the following example, unless otherwise stated, the parts are parts by weight, the percentages are percentages by weight and the temperatures are given in degrees Celsius.
<I> Example </I> 400 parts of 98% sulfuric acid are cooled to 0 and 28 parts of 100% sodium nitrite are introduced with stirring. It is then warmed to 55 to 60 until a clear solution occurs, then cooled to 30 and at 30 to 40o-47.6 parts of 2,6-diaminoanthraquinone. After the end of the introduction, the thick, yellow suspension is slowly warmed to <B> -50 </B> to 60 until the solution is clear again. It is kept at this temperature for 30 minutes, then allowed to cool to 30 and the solution is poured onto 600 parts of ice and 100 parts of water.
The tetrazo compound separates out as sulphate in yellowish-white crystals. The mixture is stirred for 30 minutes at 0 to 5, filtered and pressed well.
41.4 parts of 1-acetoacetylamino-2-methoxybenzene are dissolved at 30 parts with 30 parts of 30% sodium hydroxide solution in 300 parts of water. A dispersant such as Turkish red oil is added and the solution is adjusted to a volume of 800 parts and a temperature of 5 by adding ice and water.
Then acidified with dilute acetic acid until the lacquer acid reaction occurs, 60 parts of crystallized sodium acetate are added and a solution of the tetrazo compound from 23.8 is left with thorough stirring in about 30 minutes. Parts of 2,6-diaminoanthraquinone in 1000 parts of water are added. The mixture is stirred for two hours at 5 to 8 and then heated to 35 to 40 in one hour and stirred at this temperature for a further four hours. It is then filtered, the dye is washed free of salt and dried in vacuo at 50 to 60.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH309180T | 1952-09-12 | ||
| CH317764T | 1952-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH317764A true CH317764A (en) | 1956-11-30 |
Family
ID=25735582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH317764D CH317764A (en) | 1952-09-12 | 1952-09-12 | Process for the preparation of a new disazo dye |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH317764A (en) |
-
1952
- 1952-09-12 CH CH317764D patent/CH317764A/en unknown
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