AT48685B - Process for the preparation of vat dyes. - Google Patents
Process for the preparation of vat dyes.Info
- Publication number
- AT48685B AT48685B AT48685DA AT48685B AT 48685 B AT48685 B AT 48685B AT 48685D A AT48685D A AT 48685DA AT 48685 B AT48685 B AT 48685B
- Authority
- AT
- Austria
- Prior art keywords
- preparation
- vat dyes
- isatin
- carboxylic acid
- acetaminophenyl
- Prior art date
Links
- 239000000984 vat dye Substances 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title claims description 3
- JXDYKVIHCLTXOP-UHFFFAOYSA-N isatin Chemical compound C1=CC=C2C(=O)C(=O)NC2=C1 JXDYKVIHCLTXOP-UHFFFAOYSA-N 0.000 claims description 10
- 239000007859 condensation product Substances 0.000 claims description 8
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 239000000047 product Substances 0.000 claims description 3
- 229940051881 anilide analgesics and antipyretics Drugs 0.000 claims description 2
- 150000003931 anilides Chemical class 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000006467 substitution reaction Methods 0.000 claims description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 10
- 239000000975 dye Substances 0.000 description 6
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 5
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 5
- 229910052794 bromium Inorganic materials 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 210000002268 wool Anatomy 0.000 description 5
- 238000009835 boiling Methods 0.000 description 2
- 230000031709 bromination Effects 0.000 description 2
- 238000005893 bromination reaction Methods 0.000 description 2
- WSTRYEOEMXCRSG-UHFFFAOYSA-N 1,4-dibromoindole-2,3-dione Chemical compound C1=CC=C(Br)C2=C1N(Br)C(=O)C2=O WSTRYEOEMXCRSG-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring (AREA)
Description
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Verfahren zur Darstellung von Küpenfarbstoffen. lAs wurde gefunden, dass man zu wertvollen Küpenfarbstoffen gelangt, wenn man die Kondensationsprodukte aus 6-bezw. 5-Amino-3-oxy-l-thionapliten mit Isatin (D. R. P. Nr. 201837) oder dessen Substitutionsprodukten, Analogen oder den in alpha-Stellung substituierten Aniliden des Isatins bezw. die Azidylverbindungen dieser Kondensations- produkte mit Halogenen bezw. Halogen abspaltenden Mitteln behandelt.
Die neuen Produkte färben Baumwolle und Wolle in der alkalischen Küpe in Tönen an, welche eine noch wesentlich gesteigerte Echtheit im Vergleich zu den Färbungen der
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Beispiel I : 10 9 des Kondensationsproduktes aus 4-Azetaminophenyl-2-thioglykol.
-1-karbonsäure mit Isatin werden mit 150 g Nitrobenzol und 30 y Brom zwei Stunden auf 1600 erhitzt. Nach dem Erhalten wird abgesaugt und der Farbstoff durch Auskochen mit Sprit gereinigt. Er bildet ein rotbraunes Pulver, ist in den meisten Lösungsmitteln schwer löslich und färbt Wolle und Baumwolle in der alkalischen Küpe in gelbbraunen Tönen an. Man kann die Bromierung auch z. B. in konzentrierter Schwefelsäure ausführen, wobei eine niedrigere Bromierungstemperatur zur Anwendung kommt.
Dei s pie I II : 10 g des Kondensationsproduktes aus 4-Azetaminophenyl-2-thioglykol- -1-karbonsäure und Dibromisatin werden mit 150 9 Nitrobenzol und 30 9 Brom zwei Stunden auf 1600 erhitzt. Der wie in Beispiel I isolierte Farbstoff bildet ein braunes Pulver, ist in allen Lösungsmitteln sehr schwer löslich : Wolle und Baumwolle werden in der alka-
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-1-karbonsäure mit alpha-Isatinanilid werden mit 150 g Nitrobenzol und 30 9 Brom zwei Stunden auf 160 erhitzt. Die Aufarbeitung geschieht wie nach Beispiel I. Man erhält ein braunes Pulver, welches in allen Lösungsmitteln sehr schwer löslich ist und in der alkalischen Küpe Wolle und Baumwolle in braunen Tönen anfärbt.
B e i s p i e l IV: 10 g des Kondensationsproduktes aus 5-azetaminophenyl-2-thioglykol- -1-karbonsäure und Isatin werden mit 150 g Nitrobenzol und 30 9 Brom zwei Stunden auf 1600 erhitzt. Nach dem Erkalten wird abgesaugt und der Farbstoff durch Auskochen mit Sprit gereinigt. Er bildet ein schwarzbraunes Pulver, löst sich sehr schwer in allen Lösungsmitteln und färbt Wolle und Baumwolle in der alkalischen Küpe in rötlichbraunen Tönen an.
Beispiel V : 10 9 des Kondensationsproduktes aus 5-Azetaminophenyl-2-thioglykol- -1-karbonsäure mit alpha-Isatinanilid werden mit 150 9 Nitrobenzol und 30 9 Brom zwei Stunden auf 1600 erhitzt. Die Aufarbeitung erfolgt wie bei dem vorhergehenden Beispiel. Der neue Farbstoff bildet ein schwarzviolettes Pulver, ist in allen Lösungsmitteln schwer
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Process for the preparation of vat dyes. It has been found that valuable vat dyes are obtained if the condensation products from 6-respectively. 5-Amino-3-oxy-l-thionaplites with isatin (D. R. P. No. 201837) or its substitution products, analogues or the anilides of isatin or substituted in the alpha position. the azidyl compounds of these condensation products with halogens respectively. Treated halogen releasing agents.
The new products dye cotton and wool in the alkaline vat in shades which have a significantly increased fastness compared to the dyeings of the
EMI1.1
Example I: 10 9 of the condensation product from 4-acetaminophenyl-2-thioglycol.
-1-carboxylic acid with isatin are heated to 1600 for two hours with 150 g of nitrobenzene and 30 y of bromine. After it has been obtained, it is suctioned off and the dye is purified by boiling it with gasoline. It forms a red-brown powder, is sparingly soluble in most solvents and stains wool and cotton in the alkaline vat in yellow-brown shades. You can also use the bromination z. B. run in concentrated sulfuric acid, a lower bromination temperature is used.
Dei s pie I II: 10 g of the condensation product of 4-acetaminophenyl-2-thioglycol-1-carboxylic acid and dibromoisatin are heated to 1600 with 150 g of nitrobenzene and 30 g of bromine for two hours. The dye isolated as in Example I forms a brown powder, is very sparingly soluble in all solvents: wool and cotton are in the alkali
EMI1.2
-1-carboxylic acid with alpha-isatin anilide are heated to 160 for two hours with 150 g of nitrobenzene and 30 9 bromine. Working up is carried out as in Example I. A brown powder is obtained which is very sparingly soluble in all solvents and dyes wool and cotton in brown shades in the alkaline vat.
EXAMPLE IV: 10 g of the condensation product of 5-acetaminophenyl-2-thioglycol-1-carboxylic acid and isatin are heated to 1600 with 150 g of nitrobenzene and 30% of bromine for two hours. After cooling, it is suctioned off and the dye is cleaned by boiling it with fuel. It forms a black-brown powder, is very difficult to dissolve in all solvents and stains wool and cotton in the alkaline vat in reddish-brown tones.
Example V: 10 9 of the condensation product of 5-acetaminophenyl-2-thioglycol-1-carboxylic acid with alpha-isatin anilide are heated to 1,600 for two hours with 150 9 nitrobenzene and 30 9 bromine. The work-up is carried out as in the previous example. The new dye forms a black-violet powder and is heavy in all solvents
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Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT41780T | 1908-07-04 | ||
| AT48685T | 1910-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT48685B true AT48685B (en) | 1911-06-26 |
Family
ID=25600891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT48685D AT48685B (en) | 1908-07-04 | 1910-03-07 | Process for the preparation of vat dyes. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT48685B (en) |
-
1910
- 1910-03-07 AT AT48685D patent/AT48685B/en active
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