CH297843A - Process for the preparation of a monoazo dye. - Google Patents
Process for the preparation of a monoazo dye.Info
- Publication number
- CH297843A CH297843A CH297843DA CH297843A CH 297843 A CH297843 A CH 297843A CH 297843D A CH297843D A CH 297843DA CH 297843 A CH297843 A CH 297843A
- Authority
- CH
- Switzerland
- Prior art keywords
- monoazo dye
- preparation
- parts
- mol
- diazotized
- Prior art date
Links
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 4
- 239000000975 dye Substances 0.000 claims description 9
- 239000004952 Polyamide Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 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
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VLMRGLCBIFWPGL-UHFFFAOYSA-N 2-chloro-4-methylsulfonylaniline Chemical compound CS(=O)(=O)C1=CC=C(N)C(Cl)=C1 VLMRGLCBIFWPGL-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
- C09B29/08—Amino benzenes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines Monoazofarbstoffes. (egenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines Monoazo- farbst.offes, das dadurch gekennzeichnet. ist, dass man 1. Mol diazotiertes 1-Amino-2-chlor-4- tiiet.hy1sttlfonylbenzol mit 1 Mol N-Oxäthyl- N-cyanä.thyl-ami!nobenzol kuppelt.
Der so erhaltene Monoazofarbst.off ist neu und eignet sich zum Färben von Lacken, Aeetatkunstseide und synthetisehenPolyamid- und Polyesterfasern.
Im nachfolgenden Beispiel bedeuten die Teile Gewichtsteile.
<I>Beispiel:</I> 10,3 Teile 1-Amino-2-chlor-4-methylsulfo- nylbenzol werden bei 60 in 65 Teilen konzen trierter Schwefelsäure gelöst und durch Ein tragen von 3,5 Teilen Natriumnitrit in die Lösung diazotiert. Die Masse wird alsdann auf 3,10 Teile Eis und 75 Teile Wasser ausgeladen.
Nun wird eine Lösung von 10 Teilen N- ()xätliyl-N-eyan5thyl-aminobenzol in 7.0 Teilen konzentrierter Salzsäure und 25 Teilen Wasser hinzugetropft. Wenn die Kupplung beendet ist., wird der gebildete Monoazofarbstoff ab filtriert, säurefrei gewaschen und getrocknet.
Der neue Monoazofarbstoff färbt, in übli cher Weise dispergiert, Acetatkunstseide gelb stichig orange mit sehr guten Echtheitseigen schaften. Synthetische Polyamidfasern werden im gleichen Farbton angefärbt.
Process for the preparation of a monoazo dye. (The subject of the present patent is a process for the preparation of a monoazo dye, which is characterized in that 1. mol of diazotized 1-amino-2-chloro-4-thiiet.hy1sttlfonylbenzol is mixed with 1 mol of N-oxethyl-N -cyanä.thyl-ami! nobenzol coupling.
The monoazo dye obtained in this way is new and is suitable for dyeing lacquers, acetate rayon and synthetic polyamide and polyester fibers.
In the following example, the parts are parts by weight.
<I> Example: </I> 10.3 parts of 1-amino-2-chloro-4-methylsulfonylbenzene are dissolved at 60 in 65 parts of concentrated sulfuric acid and diazotized by adding 3.5 parts of sodium nitrite to the solution . The mass is then unloaded onto 3.10 parts of ice and 75 parts of water.
A solution of 10 parts of N- () xätliyl-N-eyan5thyl-aminobenzene in 7.0 parts of concentrated hydrochloric acid and 25 parts of water is then added dropwise. When the coupling has ended, the monoazo dye formed is filtered off, washed free of acid and dried.
The new monoazo dye, when dispersed in the usual way, dyes acetate artificial silk yellow with a pale orange with very good fastness properties. Synthetic polyamide fibers are dyed in the same shade.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH297843T | 1951-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH297843A true CH297843A (en) | 1954-04-15 |
Family
ID=4489742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH297843D CH297843A (en) | 1951-09-07 | 1951-09-07 | Process for the preparation of a monoazo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH297843A (en) |
-
1951
- 1951-09-07 CH CH297843D patent/CH297843A/en unknown
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