AT48681B - Process for the production of sulphurous vat dyes. - Google Patents
Process for the production of sulphurous vat dyes.Info
- Publication number
- AT48681B AT48681B AT48681DA AT48681B AT 48681 B AT48681 B AT 48681B AT 48681D A AT48681D A AT 48681DA AT 48681 B AT48681 B AT 48681B
- Authority
- AT
- Austria
- Prior art keywords
- sulphurous
- production
- vat dyes
- dyes
- vat
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 3
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000000984 vat dye Substances 0.000 title description 2
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- FCEHBMOGCRZNNI-UHFFFAOYSA-N 1-benzothiophene Chemical compound C1=CC=C2SC=CC2=C1 FCEHBMOGCRZNNI-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Indole Compounds (AREA)
Description
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Verfahren zur Herstellung von schwefelhaltigen Küpenfarbstoffen.
In der französischen Patentschrift 372627 ist ein Verfahren zur Darstellung vot) Farbstoffen beschrieben, welches darin besteht, dass man die Kondensation von 3-Oxy- (1) thionaphten oder seinen Substitutionsprodukten mit Isatinaryliden oder deren Halogensubstitutionsprodukten durch Kochen der genannten Verbindungen in Gegenwart von Essigsäureanhydrid oder Nitrokohlonwassorstoffen ausführt.
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von Wasser.
Es wurde nun gefunden, dass man auch, ausgchend von den Isatinaryliden oder
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kohlenwasserstoffen zur Kondensation Vorteile durch grössere Billigkeit und durch die Vermeidung von Nebenreaktionen.
Beispiel l :
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<Desc / Clms Page number 1>
Process for the production of sulphurous vat dyes.
In French patent 372627 a process for the preparation of dyes is described, which consists in the condensation of 3-oxy- (1) thionaphthene or its substitution products with isatinarylides or their halogen substitution products by boiling the compounds mentioned in the presence of acetic anhydride or Carbons nitrocarbons.
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of water.
It has now been found that, starting from the Isatinarylids or
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hydrocarbons for condensation Advantages through greater cheapness and through the avoidance of side reactions.
Example l:
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Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1907225242D DE225242C (en) | 1907-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT48681B true AT48681B (en) | 1911-06-26 |
Family
ID=5860062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT48681D AT48681B (en) | 1907-04-24 | 1908-09-20 | Process for the production of sulphurous vat dyes. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT48681B (en) |
-
1908
- 1908-09-20 AT AT48681D patent/AT48681B/en active
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