CH267316A - Process for the production of a vat dye. - Google Patents
Process for the production of a vat dye.Info
- Publication number
- CH267316A CH267316A CH267316DA CH267316A CH 267316 A CH267316 A CH 267316A CH 267316D A CH267316D A CH 267316DA CH 267316 A CH267316 A CH 267316A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- vat dye
- bromocinnamoyle
- dye
- red
- 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
- C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
- C09B5/24—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position
- C09B5/34—Anthraquinone acridones or thioxanthrones
- C09B5/36—Amino acridones
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines Küpenfarhstoffes. Es wurde gefunden, dass ein wertvoller Küpenfarbstoff hergestellt werden kann, wenn man 4-Aminoantliraeliinon-2,1-(N)- 1',2'- (N) -benzaeridon mit einem m-brom- einnamoy-lierenden Mittel behandelt.
Der neue Farbstoff löst sieh in konzen trierter Sehwefelsäure mit -elbroter Farbe und färbt Baumwolle aus rotvioletter IIvdro- sulfitküpe in kräftigen blauen Tönen von guter Eelitheit.
Als m-brom-einnamoylierendes Mittel kön nen gemäss vorliegendem Verfahren beispiels- weise ni-Bromzinitsäui-e und insbesondere ihre funktionellen Derivate, vorzugsweise das Säureelilorid, verwendet werden. Die Reak tion wird in an sich bekannter Weise zweelt- niäl3in in einem indifferenten Lösungsmittel, wie Nitrobenzol oder Diehlorbenzol, durch geführt.
<I>Beispiel:</I> Man erhitzt ein (emiseh von 3 Teilen m-Bromzimtsäure, 104 Teilen o-Diehlorbenzul (enthaltend eine geringe Menge Pyridin) und 8 Teilen Thionylehlorid unter Rüekfluss all- mählieh bis zum Sieden.
Sobald die Bildung des ni-Bronizimtsäureelilorids beendet und eine klare Lösun - entstanden ist., destilliert man das überschüssige Thionylehlorid mit etwa 13 Teilen Lösungsmittel ab. Dann gibt man bei 90 3 Teile 4-Aminoanthraehinon-2',1- (N)-1',2'-(N)-benzaeridon zu Lind erhitzt 1/2 Stunde auf 140 bis 150 . Der Farbstoff wird kalt abfiltriert, mit Alkohol gewaschen und getroeknet.
Process for the production of a vat raw material. It has been found that a valuable vat dye can be made by treating 4-aminoantliraeliinone-2,1- (N) -1 ', 2'- (N) -benzaeridone with an m-bromo-inhibiting agent.
The new dye dissolves in concentrated sulfuric acid with an egg-red color and dyes cotton from red-violet IIvdrosulfite vat in strong blue tones of good purity.
According to the present process, ni-bromocinite and in particular its functional derivatives, preferably acid eliloride, can be used as m-bromo-mono-namoylating agent. The reaction is usually carried out in a manner known per se in an inert solvent such as nitrobenzene or diehlobenzene.
<I> Example: </I> One heats a (emiseh of 3 parts of m-bromocinnamic acid, 104 parts of o-Diehlorbenzul (containing a small amount of pyridine) and 8 parts of thionyl chloride with reflux gradually until boiling.
As soon as the formation of the ni-bronizinnamic acid eliloride has ended and a clear solution has arisen, the excess thionyl chloride is distilled off with about 13 parts of solvent. Then at 90 3 parts of 4-aminoanthraehinone-2 ', 1- (N) -1', 2 '- (N) -benzaeridone are added to and heated to 140 to 150 for 1/2 hour. The dye is filtered off cold, washed with alcohol and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH267316T | 1943-12-28 | ||
CH261975T | 1943-12-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH267316A true CH267316A (en) | 1950-03-15 |
Family
ID=25730517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH267316D CH267316A (en) | 1943-12-28 | 1943-12-28 | Process for the production of a vat dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH267316A (en) |
-
1943
- 1943-12-28 CH CH267316D patent/CH267316A/en unknown
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