CH290584A - Process for the preparation of an azo dye. - Google Patents
Process for the preparation of an azo dye.Info
- Publication number
- CH290584A CH290584A CH290584DA CH290584A CH 290584 A CH290584 A CH 290584A CH 290584D A CH290584D A CH 290584DA CH 290584 A CH290584 A CH 290584A
- Authority
- CH
- Switzerland
- Prior art keywords
- parts
- formula
- dye
- azo dye
- preparation
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 7
- 239000000987 azo dye Substances 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title description 2
- 239000000975 dye Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- UONVFNLDGRWLKF-UHFFFAOYSA-N 2,5-diaminobenzoic acid Chemical compound NC1=CC=C(N)C(C(O)=O)=C1 UONVFNLDGRWLKF-UHFFFAOYSA-N 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 150000008049 diazo compounds Chemical class 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 2
- 238000007747 plating Methods 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 150000002828 nitro derivatives Chemical class 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- -1 nitromonoazo Chemical group 0.000 description 3
- 239000011780 sodium chloride 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
- 239000003513 alkali Substances 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- GZUXJHMPEANEGY-UHFFFAOYSA-N bromomethane Chemical compound BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 description 2
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- KKTUQAYCCLMNOA-UHFFFAOYSA-N 2,3-diaminobenzoic acid Chemical compound NC1=CC=CC(C(O)=O)=C1N KKTUQAYCCLMNOA-UHFFFAOYSA-N 0.000 description 1
- GHBWBMDGBCKAQU-OWOJBTEDSA-N 5-amino-2-[(e)-2-(4-nitro-2-sulfophenyl)ethenyl]benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC(N)=CC=C1\C=C\C1=CC=C([N+]([O-])=O)C=C1S(O)(=O)=O GHBWBMDGBCKAQU-OWOJBTEDSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241000159606 Netrium Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 238000006193 diazotization reaction Methods 0.000 description 1
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229940102396 methyl bromide Drugs 0.000 description 1
- 229940050176 methyl chloride Drugs 0.000 description 1
- JEXVQSWXXUJEMA-UHFFFAOYSA-N pyrazol-3-one Chemical compound O=C1C=CN=N1 JEXVQSWXXUJEMA-UHFFFAOYSA-N 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 1
- 238000010792 warming 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
- C09B56/00—Azo dyes containing other chromophoric systems
- C09B56/04—Stilbene-azo dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Description
Verfahren zur Herstellung eines Azofarbstoffes. Es wurde gefunden, dass man zu einem wertvollen- Azofarbstoff gelangt, weih man eine Diazoverbindung eines Amins der Formel
EMI0001.0011
worin Z die bei der Kondensation der Verbindung der Formel
EMI0001.0012
mit 2,5-:
Diaminobenzol-l-carbonsäure entste hende, stickstoffhaltige Atomgruppierung be deutet, mit 1-[1'-1"-Diphenyl-(4') ]-3-methyl- 5-pyrazolon kuppelt.
Der neue Farbstoff stellt ein braunrotes Pulver dar, das sich in konzentrierter Schwe felsäure mit blauer, in Wasser mit oranger Farbe löst und Baumwolle nach dem ein- oder zweibadigen Nachkupferungsverfahren in licht- und waschechten, orangen Tönen färbt.
Die beim vorliegenden Verfahren als Aus gangsstoff dienende Verbindung der ersten obenstehenden Formel lässt sich auf folgende Art herstellen: Diazotierte 4-Nitro-4'-aminostüben-2,2'-di- sulfonsäure wird mit Oxybenzol gekuppelt, hierauf die Oxygruppe methyliert (z.
B. mit Methylbromid oder -chlorid oder Dimethyl- sulfat) und der so erhaltene Nitromonoazo- farbstoff mit 2,5-Diaminobenzol-l-carbonsäure kondensiert.
Die für die Herstellung dieses Ausgangs stoffes erforderlichen- Umsetzungen können alle -in an sieh bekannter Weise erfolgen. Die Kupplung mit dem Oxybenzol wird zweck mässig in: alkalischem, z. B. alkalicarbonatalka- lischem Mittel, durchgeführt. Die Kondensa tion des Nitromonoazofarbstoffes mit der 2,5 Diaminobenzol-l-carbonsäure nimmt man zum Beispiel durch Erwärmen dieser Stoffe in ver dünnter Alkalihydroxydlösung vor.
Die Diazotierung des Amins der eingangs erwähnten Formel erfolgt mit Vorteil nach der sogenannten indirekten Methode, das heisst indem man eine einen geringen Alkaliüber- schuss aufweisende Lösung eines Alkalisalzes der zu diazotierenden Verbindung mit einem Überschuss an verdünnter Salzsäure vereinigt. Die Kupplung der Diazoverbindung mit dem
Pyrazolon wird zweckmässig in alkalischem Mittel ausgeführt.
<I>Beispiel:</I> s 51,9 Teile des durch Diazotieren von 4-Ni- tro-4'-aminostilben-2,2'-disulfonsäure und Kup- peln. mit Oxybenzol erhaltenen und nachträg lich an der Oxygruppe des Benzolkernes me- thylierten Farbstoffes werden als Netriumsalz o iri 750 Teilen Wasser gelöst.
Dazu gibt man eine Lösung von 18 Teilen 2,5-Diaminobenzol- 1-carbonsäure in 200 Teilen heissem Wasser und 16 Teilen 30%iger Natriumhydroxyd- lösung und alsdann zu der Mischung 80 Teile s 30%ige Natriumhydroxydlösung. Man lässt 4 Stunden kochen, gibt 150 Teile Natrium chlorid hinzu,
filtriert nach dem Erkalten ab und wäscht auf dem Filter mit 150/aiger Na triumchloridlösung, die mit etwas Natrium- o hydroxyd alkalisch gestellt wurde.
35 Teile des so erhaltenen Trinatriumsalzes des Disazo- farbstoffes werden in der Wärme in 500 Tei len Wasser gelöst, nach Zugabe von 3,5 Teilen Natriumnitrit als 20 0%ige Lösung unter gutem Rühren auf Eis, und 27,5 Teile 30%ige Salzsäure ausgetragen und einige Stunden bei 0 bis 5 gerührt.
Hierauf vereinigt man mit einer natriumcarbonatalkalischen Lösung von 12,8 Teilen 1-[1',1"-Diphenyl-(4') ]-3-methyl- 5-pyrazolon der Formel
EMI0002.0057
Nach beendigter Kupplung gibt man pro 100 Raumteile Reaktionsgemisch 10 Teile Na triumchlorid hinzu, erwärmt, bis der Farb stoff eine gut filtrierbare Form angenommen hat, und filtriert ab.
Process for the preparation of an azo dye. It has been found that a valuable azo dye is obtained by dedicating a diazo compound of an amine of the formula
EMI0001.0011
wherein Z is in the condensation of the compound of formula
EMI0001.0012
with 2.5-:
Diaminobenzene-1-carboxylic acid arising, nitrogen-containing atomic grouping means, with 1- [1'-1 "-diphenyl- (4 ')] -3-methyl-5-pyrazolone couples.
The new dye is a brownish-red powder that dissolves in concentrated sulfuric acid with a blue color, in water with an orange color and colors cotton in light- and washfast, orange tones using the one- or two-bath post-copper plating process.
The compound of the first formula above, which is used as the starting material in the present process, can be prepared in the following manner: Diazotized 4-nitro-4'-aminostüb-2,2'-disulfonic acid is coupled with oxybenzene, then the oxy group is methylated (e.g.
B. with methyl bromide or chloride or dimethyl sulfate) and the nitromonoazo dye thus obtained is condensed with 2,5-diaminobenzene-1-carboxylic acid.
The reactions required for the production of this starting material can all be carried out in a manner known per se. The coupling with the oxybenzene is convenient in: alkaline, z. B. alkali carbonate alkaline agent performed. The condensation of the nitromonoazo dye with the 2,5 diaminobenzene-1-carboxylic acid is carried out, for example, by heating these substances in dilute alkali metal hydroxide solution.
The diazotization of the amine of the formula mentioned at the outset is advantageously carried out by the so-called indirect method, that is to say by combining a solution of an alkali metal salt of the compound to be diazotized with an excess of dilute hydrochloric acid which has a slight excess of alkali. The coupling of the diazo compound with the
Pyrazolone is best carried out in an alkaline medium.
<I> Example: </I> s 51.9 parts of that obtained by diazotizing 4-nitro-4'-aminostilbene-2,2'-disulfonic acid and coupling. The dye obtained with oxybenzene and subsequently methylated on the oxy group of the benzene nucleus is dissolved as the netrium salt in 750 parts of water.
A solution of 18 parts of 2,5-diaminobenzene-1-carboxylic acid in 200 parts of hot water and 16 parts of 30% strength sodium hydroxide solution is added, and then 80 parts of 30% strength sodium hydroxide solution are added to the mixture. The mixture is boiled for 4 hours, 150 parts of sodium chloride are added,
filtered off after cooling and washed on the filter with 150 / aiger sodium chloride solution, which was made alkaline with a little sodium hydroxide.
35 parts of the trisodium salt of the disazo dye thus obtained are dissolved in 500 parts of water while warming, after adding 3.5 parts of sodium nitrite as a 20% solution with thorough stirring on ice, and 27.5 parts of 30% hydrochloric acid discharged and stirred for a few hours at 0 to 5.
It is then combined with an alkaline sodium carbonate solution of 12.8 parts of 1- [1 ', 1 "-diphenyl- (4')] -3-methyl-5-pyrazolone of the formula
EMI0002.0057
After coupling is complete, 10 parts of sodium chloride are added per 100 parts by volume of reaction mixture, the mixture is heated until the dye has assumed a readily filterable form, and the mixture is filtered off.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH290584T | 1950-07-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH290584A true CH290584A (en) | 1953-05-15 |
Family
ID=4487139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH290584D CH290584A (en) | 1950-07-21 | 1950-07-21 | Process for the preparation of an azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH290584A (en) |
-
1950
- 1950-07-21 CH CH290584D patent/CH290584A/en unknown
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