CH249032A - 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
- CH249032A CH249032A CH249032DA CH249032A CH 249032 A CH249032 A CH 249032A CH 249032D A CH249032D A CH 249032DA CH 249032 A CH249032 A CH 249032A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- azo dye
- dye derivative
- ester type
- derivative
- Prior art date
Links
- 239000000987 azo dye Substances 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 5
- 238000002360 preparation method Methods 0.000 title claims description 4
- 150000002148 esters Chemical class 0.000 title 1
- 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 7
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid group Chemical group C(C1=CC=CC=C1)(=O)O WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 3
- 229940117389 dichlorobenzene Drugs 0.000 claims description 3
- 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
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000004821 distillation Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 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
- Coloring (AREA)
- Treatment Of Fiber Materials (AREA)
Description
Verfahren zur Herstellung eines osterartigen Azofarbstoffderivates. Gegenstand des vorliegenden Zusatzpaten tes ist ein Verfahren zur Herstellung eines osterartigen Derivates eines o,o'-Dioxyazo- farbstoffes, dadurch gekennzeichnet, dass der A zofarbstoff aus diazotiertem 1- Oxy- 2 - amino-4,6-dichlorbenzol und 2,
4-Dioxychino- lin in Gegenwart von Pyridin mit Benzoe- säure-3,5-disulfochlorid verestert wird.
Das neue Farbstoffderivat bildet nach dem Aufarbeiten und Trocknen ein rotbrau nes, wasserlösliches Pulver. Es färbt Wolle nach dem Einbadverfahren in Gegenwart ehromabgebender Mittel in Bordeaux Tönen.
Beispiel: 70 Teile des Azofarbstoffes aus diazo- tiertem 1-Oxy-2-amino-4,6-dichlorbenzol und 2,4-Dioxychinolin werden in 280 Teilen Pyr- idin bei 50-60 gelöst und hierauf 128 Teile Benzoesäure-3,5-disulfochlorid unter gutem Rühren zugegeben. Durch Probeentnahme kann die Veresterung verfolgt werden. Die selbe ist beendet, wenn eine Probe beim Ver setzen mit Wasser keine Fällung mehr gibt.
Dann wird das Pyridin im Vakuum abdestil- liert und der Destillationsrückstand in etwa 500 Teile einer 10%igen Natriumchlorid- lösung eingetragen. Die Masse wird verrührt, bis das Farbstoff derivat gut filtrierbar ge worden ist. Es wird dann abfiltriert und mit 10%iger Natriumchloridlösung gewaschen. Das neue Derivat wird am besten im Vakuum getrocknet.
Process for the preparation of an Easter-like azo dye derivative. The subject matter of the present additional patent is a process for the preparation of an Easter-like derivative of an o, o'-dioxyazo dye, characterized in that the azo dye is made from diazotized 1- oxy-2-amino-4,6-dichlorobenzene and 2,
4-Dioxyquinoline is esterified with benzoic acid-3,5-disulfochloride in the presence of pyridine.
After processing and drying, the new dye derivative forms a red-brown, water-soluble powder. It dyes wool in shades of Bordeaux using the single-bath method in the presence of an emitting agent.
Example: 70 parts of the azo dye from diazotized 1-oxy-2-amino-4,6-dichlorobenzene and 2,4-dioxyquinoline are dissolved in 280 parts of pyridine at 50-60 and then 128 parts of benzoic acid-3,5 -disulfochloride added with thorough stirring. The esterification can be followed by taking a sample. The same is over when a sample no longer gives any precipitation when mixed with water.
The pyridine is then distilled off in vacuo and the distillation residue is added to about 500 parts of a 10% sodium chloride solution. The mass is stirred until the dye derivative has become easily filterable. It is then filtered off and washed with 10% sodium chloride solution. The new derivative is best dried in a vacuum.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH249032T | 1944-10-06 | ||
| CH244049T | 1945-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH249032A true CH249032A (en) | 1947-05-31 |
Family
ID=25728886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH249032D CH249032A (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) | CH249032A (en) |
-
1944
- 1944-10-06 CH CH249032D patent/CH249032A/en unknown
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