CH249024A - 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
- CH249024A CH249024A CH249024DA CH249024A CH 249024 A CH249024 A CH 249024A CH 249024D A CH249024D A CH 249024DA CH 249024 A CH249024 A CH 249024A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- azo dye
- dye
- ester type
- dye derivative
- 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 6
- 239000000975 dye Substances 0.000 claims description 6
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid group Chemical group C(C1=CC=CC=C1)(=O)O WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 239000004552 water soluble powder Substances 0.000 claims description 2
- XJCVRTZCHMZPBD-UHFFFAOYSA-N 3-nitroaniline Chemical compound NC1=CC=CC([N+]([O-])=O)=C1 XJCVRTZCHMZPBD-UHFFFAOYSA-N 0.000 claims 1
- 210000002268 wool Anatomy 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Substances [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 239000005711 Benzoic acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- -1 azo carbate derivative Chemical class 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 238000006243 chemical reaction 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
- 238000001556 precipitation Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Herstellung eines esterartigen Azofarbatoffderivates. Gegenstand des vorliegenden Zusatz patentes ist ein Verfahren zur Herstellung eines esterartigen Derivates eines<B>0,0</B> -Dioxy- azofa-rbstoffes, dadurch gekennzeichnet, dass der Azofarbstoff aus diazotiertem 1-Oxy-2- a.mino-5-nitrobenzol und 1-Oxy-5,
8-dichlor- naphtaIin in Gegenwart von Pyridin mit Benzoesäure-3-sulfochlorid verestert wird.
Das neue Farbstoffderivat bildet nach dem Aufarbeiten und Trocknen ein gelb braunes, wasserlösliches Pulver. Es färbt -rolle nach dem Einbadverfahren in Gegen wart chromabgebender Mittel in blaugrünen Tönen.
<I>Beispiel:</I> 62 Teile Benzoesäure-3-sulfochlorid wer den in 300 Teilen Pyridin bei 50-60 ge löst. Bei 40-50 werden 38 Teile des Azo- farbstoffes aus diazotiertem 1-Oxy-2-amino- 5-nitrobenzol und 1-Oxy-5,8-dichlornaphtalin unter gutem Rühren zugegeben. Durch Probeentnahme kann die Veresterung ver folgt werden. Dieselbe ist beendet, wenn eine Probe beim Versetzen mit Wasser keine Fällung mehr gibt.
Dann wird das Reak tionsgemisch in 800 Teilen Wasser aufge nommen, mit 200 Teilen Salzsäure bis zur schwach kongosauren Reaktion versetzt und der Farbstoffester abgenutscht. Der Press- kuchen wird nochmals in etwa 500 Teilen Wasser verrührt, nach Zusatz von 50 Teilen Natriumchlorid das Farbstoffderivat abfil- triert und im Vakuum getrocknet.
Process for the preparation of an ester-like azo carbate derivative. The subject of the present additional patent is a process for the production of an ester-like derivative of a <B> 0,0 </B> -Dioxy- azo dye, characterized in that the azo dye is made from diazotized 1-oxy-2-a.mino-5 -nitrobenzene and 1-oxy-5,
8-dichloronaphthalene is esterified with benzoic acid-3-sulfochloride in the presence of pyridine.
The new dye derivative forms a yellow-brown, water-soluble powder after working up and drying. It colors-Rolle in blue-green tones using the single-bath process in the presence of chromium-releasing agents.
<I> Example: </I> 62 parts of benzoic acid 3-sulfochloride are dissolved in 300 parts of pyridine at 50-60 ge. At 40-50, 38 parts of the azo dye from diazotized 1-oxy-2-amino-5-nitrobenzene and 1-oxy-5,8-dichloronaphthalene are added with thorough stirring. The esterification can be followed by taking a sample. This is over when a sample no longer gives any precipitation when it is mixed with water.
Then the reaction mixture is taken up in 800 parts of water, treated with 200 parts of hydrochloric acid until the reaction is weakly Congo acidic and the dye ester is suction filtered. The press cake is again stirred in about 500 parts of water, and after the addition of 50 parts of sodium chloride, the dye derivative is filtered off and dried in vacuo.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH249024T | 1944-10-06 | ||
| CH244049T | 1945-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH249024A true CH249024A (en) | 1947-05-31 |
Family
ID=25728878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH249024D CH249024A (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) | CH249024A (en) |
-
1944
- 1944-10-06 CH CH249024D patent/CH249024A/en unknown
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