AT46864B - Process for the representation of leuco bodies of sulfur-containing dyes. - Google Patents
Process for the representation of leuco bodies of sulfur-containing dyes.Info
- Publication number
- AT46864B AT46864B AT46864DA AT46864B AT 46864 B AT46864 B AT 46864B AT 46864D A AT46864D A AT 46864DA AT 46864 B AT46864 B AT 46864B
- Authority
- AT
- Austria
- Prior art keywords
- sulfur
- representation
- containing dyes
- leuco bodies
- leuco
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title description 3
- 229910052717 sulfur Inorganic materials 0.000 title description 3
- 239000011593 sulfur Substances 0.000 title description 3
- 239000000975 dye Substances 0.000 title description 2
- 230000004048 modification Effects 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- SGZFJWQQBHYNNF-UHFFFAOYSA-N 3-hydroxyindolin-2-one Chemical compound C1=CC=C2C(O)C(=O)NC2=C1 SGZFJWQQBHYNNF-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001043 yellow dye Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Indole Compounds (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Darstellung von Leukokörpern schwefelhaltiger Farbstoffe.
In dem Stammpatente Nr. 44874 wurde gezeigt, dass Dioxindol sich mit 3-Oxythionaphtenen, bezw. deren Carbonsäuren zu schwefelhaltigen Leukokörpern kondensiert.
Es wurde nun gefunden, dass man zu den Leukoverbindungen von sehr wertvollen braunen bis gelben Farbstoffen gelangt, wenn man die alkoylierten Dioxindole der all-
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(worin"A"gleich"Alkyl", z. B. CBg, C/fg usw., zu setzen ist) mit S-Oxythionaphtenen, bezw. deren Carbonsäuren kondensiert.
Die alkoxylierten Dioxindole lassen sich in analoger Weise wie Dioxindol darstellen ; es ist jedoch nicht erforderlich, die sehr schwer rein zu erhaltenden Dioxindole zu
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der entsprechenden Isatine mit Zink und Salzsäure (Ber. 12, 1309) erhalten wird.
Beispiel : Das beispielsweise durch Oxydation des Dimethoxyindigo (Ber. 22, Seite 2351) erhältliche 4-Methoxysatin
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<Desc / Clms Page number 1>
Process for the representation of leuco bodies of sulfur-containing dyes.
In the parent patent no. 44874 it was shown that dioxindole with 3-Oxythionaphtenen, respectively. whose carboxylic acids condensed to form sulfur-containing leuco bodies.
It has now been found that the leuco compounds of very valuable brown to yellow dyes can be obtained if the alkoylated dioxindoles of the all-
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(where "A" is equal to "alkyl", e.g. CBg, C / fg, etc., to be set) with S-oxythionaphthene, respectively. their carboxylic acids condensed.
The alkoxylated dioxindoles can be prepared in a manner analogous to dioxindole; however, it is not necessary to add the dioxindoles, which are very difficult to obtain in pure form
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the corresponding isatins with zinc and hydrochloric acid (Ber. 12, 1309) is obtained.
Example: 4-methoxysatin, obtainable, for example, by oxidation of dimethoxyindigo (Ber. 22, page 2351)
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Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE44874X | 1908-03-28 | ||
| DE46864X | 1908-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT46864B true AT46864B (en) | 1911-03-10 |
Family
ID=25749006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT46864D AT46864B (en) | 1908-03-28 | 1909-03-10 | Process for the representation of leuco bodies of sulfur-containing dyes. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT46864B (en) |
-
1909
- 1909-03-10 AT AT46864D patent/AT46864B/en active
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