CH220121A - Process for the production of a new azo dye. - Google Patents
Process for the production of a new azo dye.Info
- Publication number
- CH220121A CH220121A CH220121DA CH220121A CH 220121 A CH220121 A CH 220121A CH 220121D A CH220121D A CH 220121DA CH 220121 A CH220121 A CH 220121A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- ester
- carboxylic acid
- production
- dye
- Prior art date
Links
- 239000000987 azo dye Substances 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 238000000034 method Methods 0.000 title claims description 3
- 239000000975 dye Substances 0.000 claims description 8
- 150000002148 esters Chemical class 0.000 claims description 6
- QELUYTUMUWHWMC-UHFFFAOYSA-N edaravone Chemical compound O=C1CC(C)=NN1C1=CC=CC=C1 QELUYTUMUWHWMC-UHFFFAOYSA-N 0.000 claims description 5
- ALYNCZNDIQEVRV-UHFFFAOYSA-N 4-aminobenzoic acid Chemical compound NC1=CC=C(C(O)=O)C=C1 ALYNCZNDIQEVRV-UHFFFAOYSA-N 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- 229920002955 Art silk Polymers 0.000 claims description 2
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 2
- 150000008049 diazo compounds Chemical class 0.000 claims description 2
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 claims description 2
- 150000008065 acid anhydrides Chemical class 0.000 claims 1
- 150000008064 anhydrides Chemical group 0.000 claims 1
- 239000011976 maleic acid Substances 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 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
- 239000007864 aqueous solution Substances 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical group O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- -1 B. sodium chloride Chemical class 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 125000000664 diazo group Chemical class [N-]=[N+]=[*] 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Herstellung eines neuen Azofarbstoifes. Es wurde gefunden, dass man einen neuen Azofarbstoff erhält, wenn man die Diazover- bindung des 1-Aminobenzol-4-carbonsäure-ss- oxäthylesters, 1-Phenyl-3-methyl-5-pyrazolon und 3Ialeinsäureanhydrid derart aufeinander einwirken lässt,
dass der Azofarbstoff aus dianotiertem 1-Aminobenzol-4-carbonsäure-p- oxäthylester und 1-Phenyl-3-methyl-5-pyra- zolon entsteht und das Maleinsäureanhydrid mit der Oxygruppe des Carbonsäureoxyamids den sauren Maleinsäureester bildet.
Der so erhaltene Farbstoff bildet ein gel bes Pulver, das sich in Wasser löst und Acetatkunstseide in gelben Tönen färbt.
Beispiel: 181 Teile 1-Aminobenzol-4-carbonsäure-,p- oxäthylester werden durch Zugabe von 250 Teilen Salzsäure vom spezifischen Gewicht 1,15 und 69 Teilen Natriumnitrit in eiskalter wässriger Lösung dianotiert. Diese Diazolösung gibt man unter Rühren zu einer mit einem säurebindenden Mittel wie Natriumacetat oder Natriumcarbonat versetzten wässrigen Lösung von 174 Teilen 1-Phenyl-3-methyl-5-pyrazolon und 40 Teilen Natriumhydroxyd zu. Der Farb stoff bildet sich innert kurzer Zeit.
Nachdem die Umsetzung beendet ist, wird er filtriert und gewaschen und getrocknet.
5 Teile dieses Farbstoffes werden in 5 Teile geschmolzenes Maleinsäureanhydrid ein getragen. Man lässt während etwa 2 Stunden bei 90-100 C rühren, wobei die Masse langsam fester wird. Sie wird nun im Wasser unter Zusatz von Alkali, z. B. Ammoniak, gelöst und mit einem Salz, z. B. Natrium- chlorid, der Farbstoff ausgefällt. Er bildet in trockenem Zustand ein gelbes Pulver, das sich in Wasser mit gelber Farbe löst und das Acetatkunstseide in denselben Tönen färbt.
Process for the production of a new azo dye. It has been found that a new azo dye is obtained if the diazo compound of the 1-aminobenzene-4-carboxylic acid ss-oxethyl ester, 1-phenyl-3-methyl-5-pyrazolone and 3-maleic anhydride are allowed to act on one another in such a way that
that the azo dye is formed from dianotated 1-aminobenzene-4-carboxylic acid p-oxethyl ester and 1-phenyl-3-methyl-5-pyrazolone and the maleic anhydride forms the acidic maleic ester with the oxy group of the carboxylic acid oxyamide.
The resulting dye forms a yellow powder that dissolves in water and dyes acetate rayon in yellow tones.
Example: 181 parts of 1-aminobenzene-4-carboxylic acid, p-oxethyl ester are dianotized in an ice-cold aqueous solution by adding 250 parts of hydrochloric acid with a specific gravity of 1.15 and 69 parts of sodium nitrite. This diazo solution is added with stirring to an aqueous solution of 174 parts of 1-phenyl-3-methyl-5-pyrazolone and 40 parts of sodium hydroxide to which an acid-binding agent such as sodium acetate or sodium carbonate has been added. The dye forms within a short time.
After the reaction is over, it is filtered and washed and dried.
5 parts of this dye are incorporated into 5 parts of molten maleic anhydride. The mixture is stirred for about 2 hours at 90-100 ° C., the mass slowly solidifying. It is now in the water with the addition of alkali such. B. ammonia, dissolved and treated with a salt, e.g. B. sodium chloride, the dye is precipitated. When dry, it forms a yellow powder that dissolves in water with a yellow color and dyes the acetate artificial silk in the same shades.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH220121T | 1939-10-26 | ||
| CH216416T | 1939-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH220121A true CH220121A (en) | 1942-03-15 |
Family
ID=25725843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH220121D CH220121A (en) | 1939-10-26 | 1939-10-26 | Process for the production of a new azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH220121A (en) |
-
1939
- 1939-10-26 CH CH220121D patent/CH220121A/en unknown
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