CH128468A - Process for the preparation of a tetrakisazo dye. - Google Patents
Process for the preparation of a tetrakisazo dye.Info
- Publication number
- CH128468A CH128468A CH128468DA CH128468A CH 128468 A CH128468 A CH 128468A CH 128468D A CH128468D A CH 128468DA CH 128468 A CH128468 A CH 128468A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- parts
- brown
- added
- toluidine
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 3
- JJYPMNFTHPTTDI-UHFFFAOYSA-N 3-methylaniline Chemical compound CC1=CC=CC(N)=C1 JJYPMNFTHPTTDI-UHFFFAOYSA-N 0.000 claims description 14
- 239000000975 dye Substances 0.000 claims description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- 159000000000 sodium salts Chemical class 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 150000008049 diazo compounds Chemical class 0.000 claims description 4
- BTOJMXMXEABHKF-UHFFFAOYSA-N (aminodiazenyl)-phenylmethanedisulfonic acid Chemical compound NN=NC(C1=CC=CC=C1)(S(=O)(=O)O)S(=O)(=O)O BTOJMXMXEABHKF-UHFFFAOYSA-N 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 3
- QELUYTUMUWHWMC-UHFFFAOYSA-N edaravone Chemical compound O=C1CC(C)=NN1C1=CC=CC=C1 QELUYTUMUWHWMC-UHFFFAOYSA-N 0.000 claims description 3
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000006193 diazotization reaction Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims 1
- 239000001049 brown dye Substances 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 12
- 239000000243 solution Substances 0.000 description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 235000010288 sodium nitrite Nutrition 0.000 description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 description 3
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 239000001632 sodium acetate Substances 0.000 description 2
- 235000017281 sodium acetate Nutrition 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
Landscapes
- Coloring (AREA)
- Paper (AREA)
Description
Verfahren zur Herstellung eines Tetrakisazofarbstoffes. Die Erfindung betrifft ein Verfahren zur Herstellung eines Tetrakisazofarbstoffes, welcher ungeheizte Baumwolle orangefarbig bis braun färbt und ausserordentlich licht echt ist.
Er baut, sich auf aus dem Natrium salz der Aminoazotoluoldisulfosäure, zwei Molekülen m-Toluidin und einem Molekül hhetiylmethylpyrazolonsulfosaurem Natrium, indem die Diazoverbindung der ersteren mit einem Molekül m-Toluidin kombiniert, der so entstandene Disazofarbstoff diazotiert und mit einem zweiten Molekül m-Toluidin ge kuppelt und der nunmehrige Trisazofarbstoff r,
acli Diazotieren noch mit dem Natriumsalz der Phenylmethylpyrazolonsulfosäure kom biniert wird.
<I>Beispiel:</I> Man löst 48 Teile des Natriumsalzes der Aminoazotoluoldisulfosäure in 300 Teilen \Wasser und diazotiert die Lösung bei 0 bis < > C durch Zusatz von sechs bis neun Teilen Natriumnitrit und alsdann von 40 Teilen Chlc)rwasserstoffsäure von 20' B6 unter umrühren, wonach der Nitritüberschuss -be seitigt wird.
Zu der so erhaltenen Diazo- verbindung fügt man eine Lösung von 11,2 \Peilen m-Toluidin, gelöst in 150 Teilen Wasser und 14 Teilen Chlorwasserstoffsäure von 20 B6 hinzu. Unter Umrührei wird langsam eine Lösung von 31 Teilen Natrium acetat hinzugefügt und es wird umgerührt, bis die Kupplung vollendet ist.
Alsdann wer den 20 Teile gelösten Natriumkarbonates nebst 7,3 Teilen Natriumnitrit hinzugefügt und das ganze Gemisch in eine Lösung von 81 Teilen Chlorwasserstoffsäure von 20 B6 in 150 Teilen Wasser einfliessen gelassen. Nach dem Umrühren und Beseitigen der überschüs sigen salpetrigen Säure wird eine Lösung von 11,2 Teilen m-Toluidin in 13,9 Teilen Chlorwasserstoffsäure von 20 B6 und 150 .Peilen Wasser hinzugesetzt.
Nach dem Um rühren werden langsam 16,5 Teile gelösten Natriumacetates hinzugeführt und das Um rühren wird fortgesetzt, bis die Kupplung erfolgt ist. Nunmehr werden 38 Teile Na triumkarbonat hinzugesetzt und gerührt, bis eine vollständige Lösung eingetreten ist, wonach 191 Teile Chlorwasserstoffsäure von 20' B6 hinzugefügt werden und der Nieder schlag abfiltriert wird. Der Filterkuchen wird nunmehr mit 1000 Teilen Wasser -auf gerührt und mit vier Teilen Ätznatron ver setzt, wonach bis zur vollständigen Lösung gerührt wird.
Nach dem Hinzufügen von sieben Teilen Natriumnitrit wird das Ge misch in eine Lösung von 35 Teilen Chlor wasserstoffsäure von 20' Be "-in 400 Teilen Wasser einfliessen gelassen, ,wonach unter Umrühren, nachdem die überschüssige sal petrige Säure entfernt worden ist, die so er haltene Diazoverbindung zu einer Lösung ,an 26,2 Teilen des Natriumsälzes der Phenylmethylpyrazolonsulfosäure hinzuge setzt wird, welches Salz vorher in<B>31,8</B> Tei len Natriumkarbonat und 200 Teilen Wasser aufgelöst wurde. Nach dem Umrühren wird ausgesalzen, gefiltert und der Filterkuchen getrocknet.
Der so erhaltene Farbstoff entspricht folgender Formel:
EMI0002.0013
Der Farbstoff stellt ein dunkles Pulver dar, das in Wasser mit brauner Farbe lös lich, in Äther unlöslich und in Alkohol und Benzol wenig löslich ist. Die braune wäs serige Lösung färbt urigebeizte Baumwolle gelblich braun und wird auf Zusatz von Ätznatron rötlich braun verändert.
Starke Reduktionsmittel spalten die dar gestellte Tetrakisazoverbindung gemäss den angegebenen punktierten Linien und liefern folgende Reduktionsprodukte:
EMI0002.0016
EMI0002.0017
Process for the preparation of a tetrakisazo dye. The invention relates to a process for the production of a tetrakisazo dye which dyes unheated cotton orange to brown and is extremely lightfast.
It is built up from the sodium salt of aminoazotoluene disulphonic acid, two molecules of m-toluidine and one molecule of hhetiylmethylpyrazolone sulphonic acid by combining the diazo compound of the former with a molecule of m-toluidine, diazotizing the resulting disazo dye and adding a second molecule of m-toluidine couples and the now trisazo dye r,
acli diazotization is combined with the sodium salt of phenylmethylpyrazolone sulfonic acid.
<I> Example: </I> 48 parts of the sodium salt of aminoazotoluene disulphonic acid are dissolved in 300 parts of water and the solution is diazotized at 0 to <> C by adding six to nine parts of sodium nitrite and then 40 parts of hydrochloric acid of 20 Stir B6, after which the excess nitrite is removed.
A solution of 11.2 parts of m-toluidine, dissolved in 150 parts of water and 14 parts of hydrochloric acid of 20 B6, is added to the diazo compound thus obtained. A solution of 31 parts of sodium acetate is slowly added while stirring eggs and the mixture is stirred until the coupling is complete.
Then the 20 parts of dissolved sodium carbonate and 7.3 parts of sodium nitrite were added and the whole mixture was allowed to flow into a solution of 81 parts of hydrochloric acid of 20 B6 in 150 parts of water. After stirring and removal of the excess nitrous acid, a solution of 11.2 parts of m-toluidine in 13.9 parts of hydrochloric acid of 20 B6 and 150 parts of water is added.
After stirring, 16.5 parts of dissolved sodium acetate are slowly added and stirring is continued until the coupling has taken place. 38 parts of sodium carbonate are now added and the mixture is stirred until complete dissolution has occurred, after which 191 parts of hydrochloric acid of 20 'B6 are added and the precipitate is filtered off. The filter cake is then stirred with 1000 parts of water and four parts of caustic soda are added, after which the mixture is stirred until it is completely dissolved.
After adding seven parts of sodium nitrite, the mixture is poured into a solution of 35 parts of hydrochloric acid of 20 'Be "in 400 parts of water, after which, with stirring, after the excess saline acid has been removed Holding diazo compound is added to a solution of 26.2 parts of the sodium salt of phenylmethylpyrazolone sulfonic acid, which salt was previously dissolved in 31.8 parts of sodium carbonate and 200 parts of water and the filter cake dried.
The dye thus obtained corresponds to the following formula:
EMI0002.0013
The dye is a dark powder that is soluble in water with a brown color, insoluble in ether and sparingly soluble in alcohol and benzene. The brown aqueous solution gives the rustic stained cotton a yellowish brown color and changes to reddish brown when caustic soda is added.
Strong reducing agents split the tetrakisazo compound shown according to the indicated dotted lines and provide the following reduction products:
EMI0002.0016
EMI0002.0017
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US128468XA | 1926-02-06 | 1926-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH128468A true CH128468A (en) | 1928-11-01 |
Family
ID=21757006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH128468D CH128468A (en) | 1926-02-06 | 1926-12-21 | Process for the preparation of a tetrakisazo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH128468A (en) |
-
1926
- 1926-12-21 CH CH128468D patent/CH128468A/en unknown
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