CH188518A - Process for the preparation of an azo dye. - Google Patents
Process for the preparation of an azo dye.Info
- Publication number
- CH188518A CH188518A CH188518DA CH188518A CH 188518 A CH188518 A CH 188518A CH 188518D A CH188518D A CH 188518DA CH 188518 A CH188518 A CH 188518A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- preparation
- methyl
- dye
- pyrazolone
- Prior art date
Links
- 239000000987 azo dye Substances 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 4
- 239000000975 dye Substances 0.000 claims description 5
- 150000008049 diazo compounds Chemical class 0.000 claims description 3
- 239000013535 sea water Substances 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- -1 2-chloro-6 methyl-4-sulfophenyl Chemical group 0.000 description 1
- NZFRIOGEBLHAST-UHFFFAOYSA-N 2-ethyl-4h-pyrazol-3-one Chemical compound CCN1N=CCC1=O NZFRIOGEBLHAST-UHFFFAOYSA-N 0.000 description 1
- 239000012670 alkaline solution Substances 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
- 238000009963 fulling Methods 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
- C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
- C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
- C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
- C09B29/3647—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms
- C09B29/3652—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles
- C09B29/366—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles containing hydroxy-1,2-diazoles, e.g. pyrazolone
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. <B>183468.</B> Verfahren zur Herstellung eines Azofarbstoffes. Das Hauptpatent betrifft ein Verfahren zur Herstellung eines neuen Azofarbstoffes, bei welchem man die Diazoverbindung des 1-Amino-4-rliodanbenzols mit 1-(2,-Oxy-3- earboxy-5-sulfophenyl) -3-metliyl-ä-pyrazolon vereinigt.
<B>Ei</B> s wurde nun gefunden, dass man eben falls einen neuen Azofarbstoff von vorzüg lichen Echtheitseigenschaften erhält, wenn man die Diazoverbindung,des 1-Amino-4-rho- danbenzols mit 1-(2-Chlor-6-methyl-4-sulio- phenyl)-3-m,ethyl-5-pyrazolon vereinigt.
Der so erhältliche Farbstoff färbt Wolle in klaren gelben Tönen und zeichnet sieh ins besondere durch gute Wasch-, Walk- und Seewassereclitheit aus. Auch seine übrigen Eigenschaften, wie Lichteelitheit und Gleich mässigkeit, sind vorzüglich.
<I>Beispiel:</I> Man diazotiert eine wässrige, salzsaure Lösung von<B>15</B> Teilen 1-Amino-4-rliodanben- zol bei<B>0 ' C</B> und lässt nach wenigen Minuten -die Diazolösung in eine abgekühlte sodaalka- lische Lösung von<B>32</B> Teilen 1-(2-Clilor-6- methyl-4-sulfophenyl)-3-mp,tliyl-ä-pyrazolon einlaufen. Die Kupplung ist nach kurzer Zeit beendet. Der Farbstoff wird ausgesalzen, ab- gepresst und bei etwa<B>50' C</B> getrocknet.
Additional patent to main patent no. <B> 183468. </B> Process for the production of an azo dye. The main patent relates to a process for the production of a new azo dye in which the diazo compound of 1-amino-4-rliodanobenzene is combined with 1- (2, -oxy-3-earboxy-5-sulfophenyl) -3-methyl-a-pyrazolone .
It has now been found that a new azo dye with excellent fastness properties is also obtained if the diazo compound, 1-amino-4-rhodanbenzene, is mixed with 1- (2-chloro-6 methyl-4-sulfophenyl) -3-m, ethyl-5-pyrazolone combined.
The dye obtainable in this way dyes wool in clear yellow tones and is particularly characterized by its good washability, fulling and seawater clarity. Its other properties, such as lightness and evenness, are also excellent.
<I> Example: </I> An aqueous, hydrochloric acid solution of <B> 15 </B> parts of 1-amino-4-rliodanobenzene is diazotized at <B> 0 'C </B> and left after a few Minutes - run the diazo solution into a cooled soda-alkaline solution of 32 parts 1- (2-Clilor-6-methyl-4-sulfophenyl) -3-mp, tliyl-a-pyrazolone. The coupling ends after a short time. The dye is salted out, pressed out and dried at about <B> 50 ° C </B>.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH188518T | 1936-02-18 | ||
| CH183458T | 1936-02-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH188518A true CH188518A (en) | 1936-12-31 |
Family
ID=25720870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH188518D CH188518A (en) | 1936-02-18 | 1936-02-18 | Process for the preparation of an azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH188518A (en) |
-
1936
- 1936-02-18 CH CH188518D patent/CH188518A/en unknown
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