AT55381B - Process for the preparation of monoazo dyes. - Google Patents
Process for the preparation of monoazo dyes.Info
- Publication number
- AT55381B AT55381B AT55381DA AT55381B AT 55381 B AT55381 B AT 55381B AT 55381D A AT55381D A AT 55381DA AT 55381 B AT55381 B AT 55381B
- Authority
- AT
- Austria
- Prior art keywords
- preparation
- dyes
- monoazo dyes
- naphthol
- sulfonic acids
- Prior art date
Links
- 239000000975 dye Substances 0.000 title claims description 10
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 title claims description 3
- 238000000034 method Methods 0.000 title description 3
- 150000008049 diazo compounds Chemical class 0.000 claims description 3
- 150000003460 sulfonic acids Chemical class 0.000 claims description 3
- -1 naphthol sulfonic acids Chemical class 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- RZXMPPFPUUCRFN-UHFFFAOYSA-N p-toluidine Chemical compound CC1=CC=C(N)C=C1 RZXMPPFPUUCRFN-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Coloring (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Darstellung von Monoazofarbstoffen.
In der Stammpatentschrift Nr. 49572 sind Farbstoffe beschrieben, die bei gutem Egalisierungsvermögpn sehr gut wasch-und walkochte Färbungen liefern. Diese Farbstoffe werden erhalten, indem man die Diazoverbindungen von Aminoarylsulfonamiden und deren Derivaten mit den Sulfosäuren des a-und-Naphtols vereinigt.
Es wurde nun gefunden, dass man zu Farbstoffen von gleich guten Echtheiteigenschaften gelangt, wenn man die im Verfahren des Stammpatentes benutzten Naphtolsulfosäuren durch azidylierte Aminonaphtolsulfosäuren ersetzt.
Beispiel.
29'2 Teile 2-Toluidin-4-sulfo-o-anisidid werden in die Diazoverbindung übergeführt und die erhaltene Diazolösung einer mit überschüssiger Soda versetzten Auflösung von si Teilen 2-azetylamino-5-naphtol-7-sulfosaurem Natrium zugefügt. Der Farbstoff wird in üblicher Weise isoliert und getrocknet. Er färbt Wolle in lebhaften orangen Tönen ar und ist durch gutes Egalisierungsvormögen und gute Walkechtueit ausgezeichnet. Durch Ersatz des 2-Toluidin-4-sulfo-o-anisidids durch andere Aminoarylsolfonamide ode- tier 2-Azetylamino-5-naphtol-7-sulfosäure durch andere Azidylaminonaphtolsulfosäuren werden Farbstoffe erhalten, die sich von dem Farbstoff des Beispiels durch ihre Nuancen unterscheiden, in den sonstigen Eigenschaften aber damit übereinstimmen. So gibt z.
B. 4-Toluidin-
EMI1.1
4-Toluidin-2-sulfanilid + 1-Benzoylamino-8-naphtol-3,6-disulfosäure ein blaustichiges Rot.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the preparation of monoazo dyes.
The parent patent specification No. 49572 describes dyes which, with good leveling capacity, give washable and water-boiled dyeings very well. These dyes are obtained by combining the diazo compounds of aminoarylsulfonamides and their derivatives with the sulfonic acids of α-and-naphthol.
It has now been found that dyes with equally good fastness properties are obtained if the naphthol sulfonic acids used in the process of the parent patent are replaced by acidylated aminonaphthol sulfonic acids.
Example.
29'2 parts of 2-toluidine-4-sulfo-o-anisidide are converted into the diazo compound and the diazo solution obtained is added to a solution of two parts of 2-acetylamino-5-naphthol-7-sulfonic acid sodium to which an excess of soda is added. The dye is isolated and dried in the usual way. It dyes wool in lively orange tones and is characterized by good leveling properties and good flexfastness. By replacing 2-toluidine-4-sulfo-o-anisidide with other aminoarylsulfonamides or 2-acetylamino-5-naphthol-7-sulfonic acid with other azidylaminonaphthol sulfonic acids, dyes are obtained which differ from the dye of the example in their nuances, but agree with it in the other properties. So there are
B. 4-toluidine
EMI1.1
4-toluidine-2-sulfanilide + 1-benzoylamino-8-naphthol-3,6-disulfonic acid a bluish red.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE49572X | 1909-12-30 | ||
| DE55381X | 1910-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT55381B true AT55381B (en) | 1912-09-10 |
Family
ID=25749082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT55381D AT55381B (en) | 1909-12-30 | 1911-05-15 | Process for the preparation of monoazo dyes. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT55381B (en) |
-
1911
- 1911-05-15 AT AT55381D patent/AT55381B/en active
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