CH287873A - Process for the preparation of an anthraquinone dye. - Google Patents
Process for the preparation of an anthraquinone dye.Info
- Publication number
- CH287873A CH287873A CH287873DA CH287873A CH 287873 A CH287873 A CH 287873A CH 287873D A CH287873D A CH 287873DA CH 287873 A CH287873 A CH 287873A
- Authority
- CH
- Switzerland
- Prior art keywords
- amino
- preparation
- dye
- anthraquinone dye
- anthraquinone
- 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
- C09B1/26—Dyes with amino groups substituted by hydrocarbon radicals
- C09B1/32—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups
- C09B1/34—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines Anthraehinonfarbstoffes. Die aus Amino-halogenanthrachinon-sulfon- säuren und Aminoacetaniliden hergestellten Farbstoffe sind als wertvolle saure Wollfarb- stoffe bekannt und zeichnen sich durch gute Löslichkeit und gutes Egalisierungsvermögen aus.
Es wurde nun gefunden, dass man einen neuen sauren Wollfarbstoff von noch besseren Eigenschaften erhält, wenn man 1-Amino- 4-halogenanthraehinon-2-sulfonsätire mit l. Amino-4-glykolylaminobenzol umsetzt.
Das verwendete Crlykolsäurederivat kann man z. B. erhalten, wenn man co-Cliloracet- anilid mit basischen Mitteln behandelt, wobei ein Austausch des Cl-Atoms gegen die Hydro- xylgruppe stattfindet, dann das erhaltene (rlykolsäureanilid nitriert und reduziert, oder wenn man, unmittelbar von 4-Nitro-W-Chlor- acetyl-anilid ausgehend,
das durch Behandeln mit alkalischen Mitteln erhaltene Glykolsäure- nitroanilid durch Reduktion in die Aminover- bindung überführt. Ein weiterer Weg zur Herstellung des Aniinoglykolsäureanilids be steht darin, dass man Glykolid oder Polygly- kolid an Anilin oder 4-Niti-oanilin anlagert, wobei man das entsprechende Glykolsä.ure- anilid bzw.
Glykolsäure - nitro - anilid er hält, aus dein man, wie oben beschrieben, zum gewünschten Aminoglykolsäureanilid gelangt. Der neue Farbstoff zeichnet sich vor den be kannten durch wesentlich bessere Löslichkeit und noch besseres Egalisierungsvermögen aus.
<I>Beispiel:</I> 20 Gewichtsteile 1-Amino-4-bromanthrachi- non-2-sulfonsaures Natrium, 15 Gewichtsteile Natriumbicarbonat, 15 Gewichtsteile 1-Amino-4-glykolylamino- benzol und 0,5 Gewichtsteile Kupferehlorür werden in 200 Gewichtsteilen Wasser mehrere Stunden bei 60 gehalten.
Der entstandene Farbstoff, der sich im Laufe der Reaktion in Form von blauen Nädelchen abscheidet, wird abgesaugt und mit 5 1/aiger Kochsalzlösung gewaschen. In trockenem Zustande stellt er ein blaues Pulver dar, das sich in konzentrierter Schwefelsäure mit blaugrüner Farbe löst. Der Farbstoff ist in Wasser, auch in angesäuertem, äusserst leicht. löslich und färbt Wolle aus saurem Bade in klaren grünstichig blauen Tönen. Die Färbung ist durch eine hervorragende Egali tät ausgezeichnet.
Process for the preparation of an anthraquinone dye. The dyes produced from amino-halogenanthraquinone-sulfonic acids and aminoacetanilides are known as valuable acidic wool dyes and are characterized by good solubility and good leveling power.
It has now been found that a new acidic wool dye of even better properties is obtained if 1-amino-4-halogenanthraehinone-2-sulfonsätire with l. Amino-4-glycolylaminobenzene converts.
The glycolic acid derivative used can be, for. B. obtained if one treats co-Cliloracet- anilid with basic agents, whereby an exchange of the Cl atom for the hydroxyl group takes place, then nitrated the obtained (rlykolsäureanilid and reduced, or if you, directly from 4-Nitro-W -Chlor- acetyl-anilide starting,
the glycolic acid nitroanilide obtained by treatment with alkaline agents is converted into the amino compound by reduction. Another way of producing the Aniinoglykolsäureanilids consists in that glycolide or polyglycolide is added to aniline or 4-nitroaniline, the corresponding Glykolsä.ure- anilid or
Glycolic acid - nitro - anilide he holds, from which, as described above, the desired aminoglycolic acid anilide is obtained. The new dye is distinguished from the known ones by significantly better solubility and even better leveling capacity.
<I> Example: </I> 20 parts by weight of 1-amino-4-bromoanthraquinone-2-sulfonic acid sodium, 15 parts by weight of sodium bicarbonate, 15 parts by weight of 1-amino-4-glycolylamino-benzene and 0.5 parts by weight of copper chlorine are used in 200 Parts by weight of water kept at 60 for several hours.
The resulting dye, which is deposited in the form of blue needles in the course of the reaction, is filtered off with suction and washed with 5 liters of saline. When dry, it is a blue powder which dissolves in concentrated sulfuric acid with a blue-green color. The dye is extremely light in water, even in acidified water. soluble and dyes wool from acid baths in clear greenish blue tones. The coloring is distinguished by its excellent levelness.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB287873X | 1949-09-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH287873A true CH287873A (en) | 1952-12-31 |
Family
ID=10281150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH287873D CH287873A (en) | 1949-09-02 | 1950-08-28 | Process for the preparation of an anthraquinone dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH287873A (en) |
-
1950
- 1950-08-28 CH CH287873D patent/CH287873A/en unknown
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