AT72940B - Process for the preparation of yellow chromating dyes. - Google Patents
Process for the preparation of yellow chromating dyes.Info
- Publication number
- AT72940B AT72940B AT72940DA AT72940B AT 72940 B AT72940 B AT 72940B AT 72940D A AT72940D A AT 72940DA AT 72940 B AT72940 B AT 72940B
- Authority
- AT
- Austria
- Prior art keywords
- dyes
- preparation
- yellow chromating
- chromating
- yellow
- Prior art date
Links
- 239000000975 dye Substances 0.000 title claims description 7
- 238000004532 chromating Methods 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title claims description 3
- -1 pyrazolone sulfonic acids Chemical class 0.000 claims description 2
- 238000006467 substitution reaction Methods 0.000 claims description 2
- RWZYAGGXGHYGMB-UHFFFAOYSA-N anthranilic acid Chemical compound NC1=CC=CC=C1C(O)=O RWZYAGGXGHYGMB-UHFFFAOYSA-N 0.000 claims 2
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 claims 1
- 239000002253 acid Substances 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- IFXKXCLVKQVVDI-UHFFFAOYSA-N 2-amino-5-chlorobenzoic acid Chemical compound NC1=CC=C(Cl)C=C1C(O)=O IFXKXCLVKQVVDI-UHFFFAOYSA-N 0.000 description 1
- VFMNIJOKAXPZLE-UHFFFAOYSA-N 4-(5-methyl-3-oxo-1h-pyrazol-2-yl)benzenesulfonic acid Chemical compound N1C(C)=CC(=O)N1C1=CC=C(S(O)(=O)=O)C=C1 VFMNIJOKAXPZLE-UHFFFAOYSA-N 0.000 description 1
- UTGBXNLQMAKNAD-UHFFFAOYSA-N 4-chloro-3-(3-methyl-5-oxopyrazol-4-yl)benzenesulfonic acid Chemical compound O=C1N=NC(C)=C1C1=CC(S(O)(=O)=O)=CC=C1Cl UTGBXNLQMAKNAD-UHFFFAOYSA-N 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Coloring (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Darstellung gelber Chromierfarbstoffe.
Es wurde gefunden, dass man zu gelben Chromierfarbstoffen gelangt, wenn man Anthrauilsäure oder deren Substitutionsprodukte mit Pyrazolonsulfosäuren oder deren Derivaten kuppelt.
Die Farbstoffe zeichnen sich durch hervorragende Karbonisierechtheit und durch sehr gute Walkechtheit aus.
Beispiele :
1. 171'5 Teile 5-Chlor-2-aminobenzoesäure werden in der üblichen Weise diazotiert.
Man lässt die Uiazolösung in eine sodaalkalische Auflösung von 288#5 Teilen 1 (2-Chlor- -5-sulfophenyl)-3-methyl-5-pyrazolon fliessen und fällt nach beendigter Kupplung den Farbstoff mit Salz.
EMI1.1
säure mit einer sodaalkalischen Lösung von 254 Teile 1 (p-Sulfophenyl)-3-methyl-5-pyrazolon.
Der Farbstoff wird ausgesalzen und wie üblich aufgearbeitet.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the preparation of yellow chromating dyes.
It has been found that yellow chromating dyes are obtained when anthrauilic acid or its substitution products are coupled with pyrazolone sulfonic acids or their derivatives.
The dyes are characterized by excellent carbonization fastness and very good milled fastness.
Examples:
1. 171'5 parts of 5-chloro-2-aminobenzoic acid are diazotized in the usual way.
The uiazo solution is allowed to flow into a soda-alkaline solution of 288 # 5 parts of 1 (2-chloro--5-sulfophenyl) -3-methyl-5-pyrazolone and, after coupling is complete, the dye is precipitated with salt.
EMI1.1
acid with a soda-alkaline solution of 254 parts of 1 (p-sulfophenyl) -3-methyl-5-pyrazolone.
The dye is salted out and worked up as usual.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE72940X | 1913-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT72940B true AT72940B (en) | 1917-01-10 |
Family
ID=5636305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT72940D AT72940B (en) | 1913-11-05 | 1914-07-13 | Process for the preparation of yellow chromating dyes. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT72940B (en) |
-
1914
- 1914-07-13 AT AT72940D patent/AT72940B/en active
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