CH249016A - Process for the preparation of an ester type azo dye derivative. - Google Patents
Process for the preparation of an ester type azo dye derivative.Info
- Publication number
- CH249016A CH249016A CH249016DA CH249016A CH 249016 A CH249016 A CH 249016A CH 249016D A CH249016D A CH 249016DA CH 249016 A CH249016 A CH 249016A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- azo dye
- ester type
- dye derivative
- oxy
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 6
- 239000000987 azo dye Substances 0.000 title claims description 5
- 238000002360 preparation method Methods 0.000 title claims description 3
- 150000002148 esters Chemical class 0.000 title description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 8
- 239000000975 dye Substances 0.000 claims description 6
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 5
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 4
- 239000005711 Benzoic acid Substances 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 235000010233 benzoic acid Nutrition 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 239000004552 water soluble powder Substances 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines esterartigen Azofarbstoffderivates. Gegenstand des vorliegenden Zusatzpaten tes ist ein Verfahren zur Herstellung eines estera.rtigen Derivates eines o,ö -Dioxyazo- farbstoffes, dadurch gekennzeichnet, da.ss der A zofarbstoff aus diazotiertem 1- Oxy - 2 - anrino - 3,4,
6 - trichlorbenzol und 2 - Oxy - 6 - rrrethoxynaphtalin in Gegenwart von Pyridin mit Benzoesäure-3-sulfochlori.d verestert wird.
Das neue Farbstoffderivat bildet nach dem Aufarbeiten und Trocknen ein gelbbrau nes, wasserlösliches Pulver. Es färbt Wolle nach dem Einbadverfa.hren in Gegenwart chromabgebender Mittel in grauen Tönen. Beispiel: 62 Teile Benzoesäure-3-sulfochlorid wer den in 280 Teilen Pyridin bei 50 bis 60 ,gelöst.
Bei 40 bis 50 werden 40 Teile des Azofarbstoffes aus diazotiertem 1-Oxy-2- amino - 3,4,6 - trichlorbenzol und 2 - Oxy - 6 - methoxynaphtalin unter gutem Rühren zu gegeben. Nach 2 Stunden ist die Veresterung beendet. Dann wird das Pyridin im Vakuum abdestilliert, der Destillationsrückstand in etwa 500 Teilen Wasser verrührt und mit 50 Teilen Natriumchlorid versetzt.
Die Masse wird verrührt, bis das Farbstoffderivat gut filtrierbar geworden ist. Hierauf wird ab filtriert und im Vakuum getrocknet.
Process for the preparation of an ester type azo dye derivative. The subject matter of the present additional patent is a process for the production of an ester-type derivative of an o, ö -dioxyazo dye, characterized in that the azo dye is made from diazotized 1- oxy-2-anrino-3,4
6 - trichlorobenzene and 2 - oxy - 6 - rrrethoxynaphtalin in the presence of pyridine with benzoic acid-3-sulfochlori.d is esterified.
After working up and drying, the new dye derivative forms a yellow-brown, water-soluble powder. It dyes wool according to the single bath process in the presence of chromium-releasing agents in gray tones. Example: 62 parts of benzoic acid 3-sulfochloride who in 280 parts of pyridine at 50 to 60, dissolved.
At 40 to 50, 40 parts of the azo dye from diazotized 1-oxy-2-amino-3,4,6-trichlorobenzene and 2-oxy-6-methoxynaphthalene are added with thorough stirring. The esterification has ended after 2 hours. The pyridine is then distilled off in vacuo, the distillation residue is stirred in about 500 parts of water, and 50 parts of sodium chloride are added.
The mass is stirred until the dye derivative has become easily filterable. It is then filtered off and dried in vacuo.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH249016T | 1944-10-06 | ||
| CH244049T | 1945-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH249016A true CH249016A (en) | 1947-05-31 |
Family
ID=25728870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH249016D CH249016A (en) | 1944-10-06 | 1944-10-06 | Process for the preparation of an ester type azo dye derivative. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH249016A (en) |
-
1944
- 1944-10-06 CH CH249016D patent/CH249016A/en unknown
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