CH116082A - Process for the production of an indigoid dye of the anthracene series. - Google Patents
Process for the production of an indigoid dye of the anthracene series.Info
- Publication number
- CH116082A CH116082A CH116082DA CH116082A CH 116082 A CH116082 A CH 116082A CH 116082D A CH116082D A CH 116082DA CH 116082 A CH116082 A CH 116082A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- indigoid dye
- anthracene
- anthracene series
- 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
- C09B7/12—Other thionaphthene indigos
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 103649. Verfahren zur Herstellung eines indigoiden Farbstoffes der Anthracenreihe. Es wurde - gefunden, dass man einen in- digoiden Farbstoff der Anthracenreihe erhält, wenn man ein Anil des 2,3-Anthrachinon- thioisatins mit 1-Oxyanthrmen kondensiert. Der Farbstoff bildet ein schwarzviolettes Pulver, das sich in Schwefelsäure mit grüner Farbe löst und eine olivenbraune Küpe gibt,
aus welcher Baumwolle grau gefärbt wird. Beispiel 20,5 Teile des p-Dimetliylaminoanils des 2,3-Antlirachinonthioisatins werden - mit 10 Teilen 1-Oxyanthracen und 500 Teilen Pyridin oder Trichlorbenzol zwei Stunden unter R.ückfluss gekocht. Der ausgeschiedene Farbstoff wird abgesaugt, gewaschen und getrocknet.
Die Reaktion verläuft. nach folgender Gleichung
EMI0001.0021
Additional patent to main patent no. 103649. Process for the production of an indigoid dye of the anthracene series. It has been found that an indigo dye of the anthracene series is obtained if an anil of 2,3-anthraquinone thioisatin is condensed with 1-oxyanthrm. The dye forms a black-violet powder that dissolves in sulfuric acid with a green color and gives an olive-brown vat,
which cotton is dyed gray. EXAMPLE 20.5 parts of the p-dimethylaminoanil of 2,3-antlirachinonthioisatins are refluxed for two hours with 10 parts of 1-oxyanthracene and 500 parts of pyridine or trichlorobenzene. The precipitated dye is filtered off, washed and dried.
The reaction proceeds. according to the following equation
EMI0001.0021
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH103649T | 1923-01-24 | ||
CH116082T | 1924-06-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH116082A true CH116082A (en) | 1926-08-02 |
Family
ID=25706537
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH116082D CH116082A (en) | 1923-01-24 | 1924-06-21 | Process for the production of an indigoid dye of the anthracene series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH116082A (en) |
-
1924
- 1924-06-21 CH CH116082D patent/CH116082A/en unknown
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