CH108856A - Process for the preparation of a condensation product of the anthraquinone series which can be used as dye and dye intermediate. - Google Patents
Process for the preparation of a condensation product of the anthraquinone series which can be used as dye and dye intermediate.Info
- Publication number
- CH108856A CH108856A CH108856DA CH108856A CH 108856 A CH108856 A CH 108856A CH 108856D A CH108856D A CH 108856DA CH 108856 A CH108856 A CH 108856A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- condensation product
- preparation
- yellow
- anthraquinone series
- 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
- C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
- C09B1/16—Amino-anthraquinones
- C09B1/20—Preparation from starting materials already containing the anthracene nucleus
- C09B1/36—Dyes with acylated amino groups
- C09B1/46—Dyes with acylated amino groups the acyl groups being residues of cyanuric acid or an analogous heterocyclic compound
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 97069. Verfahren zur Darstellung eines als Farbstoff und Farbstoffzwisehenprodukt verwendbaren Kondensationsproduktes der Anthraehinonreihe. Es wurde gefunden, dass man ein als Farbstoff und als Farbstoffzwisehenpro!dukt verwendbares Kondensationsprodukt der An- thrachinonreihe erhalten kann,
wenn man die 3'-Aminobenzoylbenzoesäure mit Cyanurchlo= rid umsetzt und hierauf .die entstandene Ver bindung durch Behandeln mit kondensierend tvirkenden Mitteln, wie zum Beispiel S-chwe- felsäure, in das entsprechende Anthrachinon- derivat umwandelt.
Das so erhaltene Kondensationsprodukt ist ein gelbos, kristallinisches Pulver, unlöslich in Wasser, sehr schwer löslich in kaltem, etwas besser in heissem Nitrobenzol; es löst sich in kalter, konzentrierter Schwefelsäure mit rotgelber Farbe und liefert mit Na.tron- lattge und Hydrosulfit verküpt, eine braun rote Küpenlösung, aus welcher Baumwolle in gelben Tönen angefärbt werden kann.
Beispiel: 241 Teile 3'-Aminobenzoylbenzoesäure werden unter Zugabe von 53 Teilen Natrium- karbonat in Wasser gelöst. Die Lösung wird durch Eintragen von Eis auf 0 abgekühlt und darauf unter Aufrechterhaltung dieser Temperatur während einiger Zeit mit einer Lösung von 62 Teilen Cyanurchlorid in Ace ton verrührt. Darnach steigert man die Tem peratur langsam bis auf<B>70',</B> indem man zugleich allmählich eine Lösung von 35,4 Teilen Natriumkarbonat einträgt.
Nachdem schliesslich noch während etwa 24 Stunden bei 70 bis 75 weitergerührt worden ist, wird erkalten gelassen, mit Salzsäure angesäuert und das ausgeschiedene Produkt abrfiltriert, neutral gewaschen und getrocknet. Das so er haltene, nahezu farblose, kristallinische Pul ver wird bei etwa 20 bis<B>30'</B> in 600 Teilen 95 %ige.r Schwefclsä,nre gelöst und die Tem peratur innert etwa einer halben Stunde auf 90 gesteigert.
Nachdem dann noch etwa eine Stunde bei 90 bis<B>100'</B> verrührt worden ist, wird, die Lösung auf Eis gegossen, wobei sich ein gelber Körper ausscheidet. Dieser wird abfiltriert,, mit verdünnter Natronlauge, darauf mit Wasser gewaschen und zuletzt ge trocknet.
Patent supplement to main patent no. 97069. Process for the preparation of a condensation product of the anthraquinone series which can be used as a dye and dye-toe product. It has been found that a condensation product of the anthraquinone series which can be used as a dye and as a dye pair product can be obtained,
if the 3'-aminobenzoylbenzoic acid is reacted with cyanuric chloride and then the resulting compound is converted into the corresponding anthraquinone derivative by treatment with agents that have a condensing effect, such as sulfuric acid, for example.
The condensation product thus obtained is a yellowish, crystalline powder, insoluble in water, very sparingly soluble in cold, somewhat better in hot nitrobenzene; it dissolves in cold, concentrated sulfuric acid with a red-yellow color and, with Na.tronlattge and hydrosulphite vat, gives a brown-red vat solution from which cotton can be dyed in yellow tones.
Example: 241 parts of 3'-aminobenzoylbenzoic acid are dissolved in water with the addition of 53 parts of sodium carbonate. The solution is cooled to 0 by adding ice and then stirred with a solution of 62 parts of cyanuric chloride in acetone while maintaining this temperature for some time. The temperature is then slowly increased to <B> 70 '</B> by gradually introducing a solution of 35.4 parts of sodium carbonate at the same time.
After the mixture has finally been stirred for a further 24 hours at 70 to 75, the mixture is left to cool, acidified with hydrochloric acid and the precipitated product is filtered off, washed neutral and dried. The almost colorless, crystalline powder obtained in this way is dissolved in 600 parts of 95% sulfuric acid at around 20 to 30 '' and the temperature is increased to 90 within around half an hour.
After stirring at 90 to <B> 100 '</B> for about an hour, the solution is poured onto ice, a yellow body separating out. This is filtered off with dilute sodium hydroxide solution, then washed with water and finally dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH97059T | 1921-05-30 | ||
CH108856T | 1923-10-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH108856A true CH108856A (en) | 1925-02-02 |
Family
ID=25705209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH108856D CH108856A (en) | 1921-05-30 | 1923-10-26 | Process for the preparation of a condensation product of the anthraquinone series which can be used as dye and dye intermediate. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH108856A (en) |
-
1923
- 1923-10-26 CH CH108856D patent/CH108856A/en unknown
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