CH191428A - Process for the preparation of an azo dye. - Google Patents
Process for the preparation of an azo dye.Info
- Publication number
- CH191428A CH191428A CH191428DA CH191428A CH 191428 A CH191428 A CH 191428A CH 191428D A CH191428D A CH 191428DA CH 191428 A CH191428 A CH 191428A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- azo dye
- dye
- nitro
- chloro
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- 239000000987 azo dye Substances 0.000 title claims description 3
- 239000000975 dye Substances 0.000 claims description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- AKCRQHGQIJBRMN-UHFFFAOYSA-N 2-chloroaniline Chemical compound NC1=CC=CC=C1Cl AKCRQHGQIJBRMN-UHFFFAOYSA-N 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 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
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Darstellung eines Azofarbstoffes. Gemäss dem im Hauptpatent beschrie benen Verfahren erhält man einen Acetat seide in sehr lichtechten, klaren Scharlach tönen anfärbenden Farbstoff; wenn man di- azotiertes 4-Nitro-l-amiriobenzol mit. 3-Chlor- 1-dioxyäthylamirrober)zol kuppelt.
Wie nun weiter gefunden wurde, erhält man einen Farbstoff von ganz ähnlichen Echt heitseigenschaften, wenn man diazotiertes 4-Nitro-2-chlor--1-amirrobenzol mit 3-Brom-1- dioxyäthylanrinobenzol kuppelt.
<I>Beispiel:</I> Eine aus 17,3 Teilen 4-Nitro=2-chlor-l- aminobenzol auf dem üblicben Wege darge stellte Diazolösung lässt man in eine kalte Lösung von 26 Teilen 3-Brom-l-dioxyäthyl- aminobenzol in 25 Teilen Salzsäure 23 Bö und 800 Teilen Wasser einfliessen und stumpft zur Beendigung der Kupplung mit Natrium acetat ab. Der anfallende Farbstoff färbt Acetatseide in echten Rottönen an.
Process for the preparation of an azo dye. According to the process described in the main patent, an acetate silk is obtained in a very lightfast, clear scarlet tones dye; if you diazotized 4-nitro-l-amiriobenzene with. 3-chloro-1-dioxyäthylamirrober) zol couples.
As has now been found further, a dye of very similar authenticity properties is obtained if one couples diazotized 4-nitro-2-chloro - 1-amirrobenzene with 3-bromo-1-dioxyäthylanrinobenzene.
<I> Example: </I> A diazo solution prepared from 17.3 parts of 4-nitro = 2-chloro-l-aminobenzene in the usual way is allowed to pour into a cold solution of 26 parts of 3-bromo-l-dioxyethyl Aminobenzene pour in 25 parts of hydrochloric acid 23 Bö and 800 parts of water and blunt with sodium acetate to complete the coupling. The resulting dye stains acetate silk in real shades of red.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE191428X | 1935-03-13 | ||
| CH188887T | 1936-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH191428A true CH191428A (en) | 1937-06-15 |
Family
ID=25721696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH191428D CH191428A (en) | 1935-03-13 | 1936-02-06 | Process for the preparation of an azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH191428A (en) |
-
1936
- 1936-02-06 CH CH191428D patent/CH191428A/en unknown
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