CH257295A - Process for the production of an indigoid vat dye. - Google Patents
Process for the production of an indigoid vat dye.Info
- Publication number
- CH257295A CH257295A CH257295DA CH257295A CH 257295 A CH257295 A CH 257295A CH 257295D A CH257295D A CH 257295DA CH 257295 A CH257295 A CH 257295A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- vat dye
- formula
- indigoid vat
- dye
- Prior art date
Links
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
- C09B7/00—Indigoid dyes
- C09B7/06—Indone-thionapthene indigos
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 251880. Verfahren zur Herstellung eines indigoiden Küpenfarbstoffes. Es wurde gefunden, dass ein indigoider Küpenfarbst off hergestellt werden kann, wenn rnan ein den Rest der Formel
EMI0001.0010
i -il)
el -ebendes Mittel mit einem den Rest der Formel
EMI0001.0021
abgebenden Mittel kondensiert.
Der neue Farbstoff ist ein violettstichig blaues Pulver, das sich in konzentrierter 5cliwefelsä.urc@ mit blauer Farbe löst und Baumwolle aus gelber Küpe in rötlichblauen Nuaneen färbt.
Als Verbindungen, die den erstgenannten Rest: abzugeben imstande sind, kommen bei- spielsiveise das 5,8 - Dichlor -1,2 - naphth- thioindoxyl, als Verbindungen, die den zweit- genannten Rest abzugeben imstande sind, kommen beispielsweise reaktionsfähige a-De- rivate desi 5,7 - Dibromisatins, z. B. das a-Cliloi-id, in. Betracht.
Die Kondensation der beiden Komponen- len kann vorteilhaft m einem indifferenten Medium, so z. B. in Lösungsmitteln wie Chlorbenzol, durchgeführt werden.
Das dem vorliegenden Verfahren z. B. als Ausgangsstoff dienende 5,8 - Dichlor - 1,2 - naphththioindoxyl kann nach den Angaben des Hauptpatentes erhalten werden.
Beispiel; 226 Teile 5-Bromisatin werden durch ein stündiges Erwärmen mit 260 Teilen Phos- phorpentachlorid und 6000 Teilen Chlor benzol auf 110-120 in das a-Chlorid über geführt. Die Lösung des Chlorids wird mit der Lösung von 269 Teilen 5,8-Dichlor-1,2- riaphththiöindoxyl in 10 000 Teilen Chlor benzol bei 70 vereinigt. Nach dem Erkalten wird der Farbstoff abgesaugt, mit Alkohol gewaschen und getrocknet.
<B> Additional patent </B> to main patent no. 251880. Process for the production of an indigoid vat dye. It has been found that an indigoid vat color can be made using the remainder of the formula
EMI0001.0010
i -il)
el -living agent with one the rest of the formula
EMI0001.0021
condensing agent.
The new dye is a violet-tinged blue powder, which dissolves in concentrated 5-cli-sulfuric acid with a blue color and dyes cotton from a yellow vat in reddish-blue shades.
Compounds that are capable of releasing the first-mentioned group include, for example, 5,8-dichloro-1,2-naphth-thioindoxyl, and compounds capable of releasing the second-mentioned group are, for example, reactive a-De - derivatives desi 5,7 - dibromoisatin, e.g. B. the a-Cliloi-id, into consideration.
The condensation of the two components can advantageously be carried out in an inert medium, e.g. B. in solvents such as chlorobenzene.
The present process z. B. 5,8 - dichloro - 1,2 - naphthioindoxyl used as starting material can be obtained according to the information in the main patent.
Example; 226 parts of 5-bromoisatin are converted into the α-chloride by heating with 260 parts of phosphorus pentachloride and 6000 parts of chlorobenzene to 110-120 for hours. The solution of the chloride is combined with the solution of 269 parts of 5,8-dichloro-1,2-riaphththioindoxyl in 10,000 parts of chlorobenzene at 70. After cooling, the dye is filtered off with suction, washed with alcohol and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH251880T | 1944-10-13 | ||
CH257295T | 1944-10-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH257295A true CH257295A (en) | 1948-09-30 |
Family
ID=25729579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH257295D CH257295A (en) | 1944-10-13 | 1944-10-13 | Process for the production of an indigoid vat dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH257295A (en) |
-
1944
- 1944-10-13 CH CH257295D patent/CH257295A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH257295A (en) | Process for the production of an indigoid vat dye. | |
CH257294A (en) | Process for the production of an indigoid vat dye. | |
AT55039B (en) | Process for the preparation of vat dyes. | |
CH257293A (en) | Process for the production of an indigoid vat dye. | |
CH257296A (en) | Process for the production of an indigoid vat dye. | |
CH247611A (en) | Process for the production of a vat dye. | |
CH265730A (en) | Process for the preparation of an anthraquinone dye. | |
CH249377A (en) | Process for the production of a vat dye. | |
CH109637A (en) | Process for the production of a new vat dye. | |
CH259729A (en) | Process for the production of a vat dye. | |
CH265735A (en) | Process for the production of a vat dye. | |
CH163280A (en) | Process for the production of a new vat dye. | |
CH210527A (en) | Process for the production of an anthraquinone derivative. | |
CH252953A (en) | Process for the production of a vat dye. | |
CH210203A (en) | Process for the preparation of an anthraquinone vat dye. | |
CH109645A (en) | Process for the production of a new vat dye. | |
CH222467A (en) | Process for the production of a nitrogen-containing condensation product. | |
CH211045A (en) | Process for the production of a fluoranthene derivative. | |
CH211037A (en) | Process for the preparation of a phenanthrene derivative. | |
CH109629A (en) | Process for the production of a new vat dye. | |
CH208544A (en) | Process for the production of a nitrogen-containing condensation product. | |
CH275439A (en) | Process for the production of a vat dye. | |
CH109636A (en) | Process for the production of a new vat dye. | |
CH171365A (en) | Process for the production of a carbazole derivative. | |
CH306896A (en) | Process for the preparation of an anthraquinone vat dye. |