CH259727A - Process for the preparation of a disazo dye. - Google Patents
Process for the preparation of a disazo dye.Info
- Publication number
- CH259727A CH259727A CH259727DA CH259727A CH 259727 A CH259727 A CH 259727A CH 259727D A CH259727D A CH 259727DA CH 259727 A CH259727 A CH 259727A
- Authority
- CH
- Switzerland
- Prior art keywords
- yellow
- oxy
- disazo dye
- sulfonic acid
- preparation
- Prior art date
Links
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 title claims description 4
- 238000000034 method Methods 0.000 title description 5
- 238000002360 preparation method Methods 0.000 title description 2
- 239000000975 dye Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- 229920000742 Cotton Polymers 0.000 claims 1
- JBPWDTQELHPIPV-UHFFFAOYSA-N n-(3,6-dihydro-2h-pyridin-1-yl)pyridine-4-carboxamide Chemical compound C=1C=NC=CC=1C(=O)NN1CCC=CC1 JBPWDTQELHPIPV-UHFFFAOYSA-N 0.000 claims 1
- 239000012188 paraffin wax Substances 0.000 claims 1
- 229920001469 poly(aryloxy)thionylphosphazene Polymers 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- -1 aminoazo Chemical class 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- SKDHHIUENRGTHK-UHFFFAOYSA-N 4-nitrobenzoyl chloride Chemical compound [O-][N+](=O)C1=CC=C(C(Cl)=O)C=C1 SKDHHIUENRGTHK-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 241000237852 Mollusca Species 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000000751 azo group Chemical group [*]N=N[*] 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
- 150000008049 diazo compounds Chemical class 0.000 description 1
- 238000006193 diazotization reaction Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 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
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 150000003568 thioethers Chemical class 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
- C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
- C09B35/02—Disazo dyes
- C09B35/039—Disazo dyes characterised by the tetrazo component
- C09B35/28—Disazo dyes characterised by the tetrazo component the tetrazo component containing two aryl nuclei linked by at least one of the groups —CON<, —SO2N<, —SO2—, or —SO2—O—
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 254807. Verfahren zur Herstellung eines Disazofarbstoffes. durch, dass man eine Lösung, die ein Alkali salz .dieses Aminoazofarbstoffes sowie die er forderliehen Menge Nitrit enthält, mit einer einen Überschuss Tiber die theoretisch benö tigte Menge Säure, insbesondere Salzsäure, endhaltenden, verdünnten Säurelösung ver mischt.
Die Vereinigung der Diazoverbindung mit dem 1-(.4'-Oxy-3'-carboxy)-phenyl-3!-methyl- 5-pyrazolon geschieht z. B. in alkalischem.. vorzugsweise alkalicarbonatalkalisehem Me dium.
Beispiel: 50 Teile des Natriumsalzes der 4-,(4" Aminobenzoylamino) -4'-oxy-3@-carboxy-l,l'- azobenzol-5'-sulfonsäure, welche in üblicher -Weise durch Kondensation von 4-Amino-4'- oxy-3''-ea.rhoxy - 1,1'-azoben@z,o'1-5'-sulfonsäure mit 4-Nitroben:zoylehlori@d und Reduktion der Nitrogruppe zur Aminoverbindung erhalten wurde, werden in 5000 Teilen warmem. Was ser gelöst, mit 7 Teilen Natriumnitrit ver setzt und durch Zugabe von Eis, auf etwa 8 gekühlt.
Alsdann gibt. man unter gutem Rühren 58 Teile Salzsäure, welche mit 300 Teilen Wasser verdünnt wur den, hinzu und lässt einige Zeit bei etwa 10 rühren. Hierauf vereinigt man bei 01 bis 3 mit einer natriumcarbonatalkalisehen Lösung von 24 Teilen 1-(4'-Oxy-3'-ca.rboxy)-phenyl- 3-methyl-5-pyrazolon. Nach beendeter Kupp lung gibt. man etwas Na.triumehlorid hinzu und filtriert den Farbstoff ab und trocknet ihn.
Es wurde gefunden, dass man zu einem wertvollen Disazofarbstoff gelangt, wenn man diazotierte 4 - (4" - Aminobenzoylamino) - 4'- oxy - 3'-carboxy=l,l'=a.zobenzol-#5'-sulfonsäure mit 1-(4'-Oxy-3,'-carboxy)-phenyl - 3-methyl- 5-pyrazolon vereinigt.
Der neue Farbstoff stellt in trockenem Zustand ein gelbbraunes Pulver dar, dae sich in Wasser und in konzentrierter Sch wefel- säure mit gelber Farbe löst und Baummolle in gelben Tönen färbt, welche sich durch sehr gute neutrale und alkalische Ätzbarkeit aus zeichnen.
Die beim vorliegenden Verfahren als Aus gangstoff zu verwendende 4-(4"-Aminoben- zoylamino) - 4'-oxy-3'-carboxyl-1,1'-azobenzol 5',sulfonsäure lässt sich z.
B. durch Konden sation der 4 - Amino - 4'-oxy-3'-carboxy-l,l'- azobenzol-5'-sulfonsäure mit einem Nitroben- zol-p-carbonsäurehalogeni.d wie p-Nitroben- zoylchlorid und nachfolgende Reduktion der Nitrogruppe zur Aminogruppe unter Bedin gungen, bei denen die Azogruppe nicht ange griffen wird., wie z.
B. mit Hilfe von Al- kalisulfiden, herstellen. Für die Herstellung der4-Amino-4'-oxy-3'-carboxy-l,1'-azobenzol- 5'-sulfonsäure ist in der schweizerischen Pa tentschrift Nr. 2'13i6'02 ein Verfahren be schrieben.
Die Diazotierung der 4-(4"-Aminobenzoyl- amino) - 4' - oxy -3-'-ca.rboxy-.1,1'-azobenzol-5'- sulfonsäure kann z. B. nach der sogenannten indirekten Methode erfolgen, das 'heisst da-
Additional patent to main patent No. 254807. Process for the production of a disazo dye. by mixing a solution containing an alkali salt of this aminoazo dye and the required amount of nitrite with a dilute acid solution containing an excess of the theoretically required amount of acid, in particular hydrochloric acid.
The union of the diazo compound with the 1 - (4'-Oxy-3'-carboxy) -phenyl-3! -Methyl-5-pyrazolone happens, for. B. in alkaline .. preferably alkali carbonate alkali metal.
Example: 50 parts of the sodium salt of 4 -, (4 "aminobenzoylamino) -4'-oxy-3 @ -carboxy-l, l'-azobenzene-5'-sulfonic acid, which is obtained in the usual way by condensation of 4-amino- 4'- oxy-3 '' - ea.rhoxy - 1,1'-azoben @ z, o'1-5'-sulfonic acid with 4-nitrobene: zoylehlori @ d and reduction of the nitro group to the amino compound are obtained in 5000 Parts of warm water dissolved, mixed with 7 parts of sodium nitrite and cooled to about 8 by adding ice.
Then there. 58 parts of hydrochloric acid, which were diluted with 300 parts of water, are added with thorough stirring and the mixture is left to stir at about 10 for some time. It is then combined at 01 to 3 with a sodium carbonate alkali solution of 24 parts of 1- (4'-oxy-3'-ca rboxy) -phenyl-3-methyl-5-pyrazolone. After the coupling is completed there is. a little sodium chloride is added and the dye is filtered off and dried.
It has been found that a valuable disazo dye is obtained if diazotized 4 - (4 "- aminobenzoylamino) - 4'-oxy - 3'-carboxy = l, l '= a.zobenzene- # 5'-sulfonic acid with 1 - (4'-Oxy-3, '- carboxy) -phenyl - 3-methyl-5-pyrazolone combined.
When dry, the new dye is a yellow-brown powder, as it dissolves in water and in concentrated sulfuric acid with a yellow color and dyes tree molluscs in yellow tones, which are characterized by very good neutral and alkaline etchability.
The in the present process as starting material to be used 4- (4 "-Aminoben- zoylamino) - 4'-oxy-3'-carboxyl-1,1'-azobenzene 5 ', sulfonic acid can be z.
B. by condensation of the 4 - amino - 4'-oxy-3'-carboxy-l, l'-azobenzene-5'-sulfonic acid with a nitrobenzene-p-carboxylic acid halide such as p-nitrobenzoyl chloride and subsequent Reduction of the nitro group to the amino group under conditions in which the azo group is not attacked.
B. with the help of alkali sulfides. For the preparation of 4-amino-4'-oxy-3'-carboxy-l, 1'-azobenzene-5'-sulfonic acid, a process is described in Swiss patent no. 2'13i6'02.
The diazotization of 4- (4 "-aminobenzoylamino) -4'-oxy -3 -'-carboxy-.1,1'-azobenzene-5'-sulfonic acid can take place, for example, by the so-called indirect method 'that means'
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH259727T | 1946-09-27 | ||
| CH254807T | 1946-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH259727A true CH259727A (en) | 1949-01-31 |
Family
ID=25729863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH259727D CH259727A (en) | 1946-09-27 | 1946-09-27 | Process for the preparation of a disazo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH259727A (en) |
-
1946
- 1946-09-27 CH CH259727D patent/CH259727A/en unknown
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