CH292309A - Process for the preparation of an anthraquinone dye. - Google Patents
Process for the preparation of an anthraquinone dye.Info
- Publication number
- CH292309A CH292309A CH292309DA CH292309A CH 292309 A CH292309 A CH 292309A CH 292309D A CH292309D A CH 292309DA CH 292309 A CH292309 A CH 292309A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- amino
- 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
Zusatzpatent zum Hauptpatent Nr. 287873. Verfahren zur Herstellung eines Anthrachinonfarbstoffes. Die aus Aniino-halogenanthrachinon-sul- fonsäuren und Aminöacetaniliden hergestell ten Farbstoffe sind als wertvolle saure Woll- farbstoffe bekannt und zeichnen sich durch gute Löslichkeit und gutes Egalisierungsver- mögen aus.
Es wurde nun gefunden, dass man einen neuen sauren Wollfarbstoff von noch besseren Eigenschaften erhält, wenn man 1-Amino-4- liiilogenanthraehinon - 2 - sulfonsäure mit 1- :\mino-3-glykolylaminobenzol umsetzt.
Das verwendete Glykolsäurederivat kann man zum Beispiel erhalten, wenn man Cliloi-aeetanilid mit basischen Mitteln behan delt, wobei ein Austausch des Cl-Atoms gegen die 1Iydroxylgruppe stattfindet, dann das er haltene Glykolsäureanilid nitriert und redu ziert, oder wenn man, unmittelbar von 3-Nitro- (i)-eliloraeetylanilid ausgehend, das durch Be handeln mit alkalischen Mitteln erhaltene Gly- kolsänre-nitroanilid durch Reduktion in die Aminoverbindung überführt.
Ein weiterer Weg zur Herstellung des Aminoglykol.säitre- anilids besteht darin, dass man Glykolid oder 1'olvglykolid an Anilin oder 3-Nitroanilin an lagert, wobei man das entsprechende Glykol- sänreanilid bzw. Glykolsäure-nitroanilid er hält, ans denen man, wie oben beschrieben, zum gewünschten Aminoglykolsäureanilid ge langt.
Der neue Farbstoff zeichnet sich vor den bekannten durch wesentlich bessere Lös- lielikeit und noch besseres Egalisierungsver- mögen aus. <I>Beispiel:</I> 20 Gewichtsteile 1-Amino-4-bromanthrachi- non-2-sulfonsaures Natrium, 15 Gewichtsteile Natriumbicarbonat, 15 Gewichtsteile 1- Amino - 3 - glykolamino- benzol und 0,5 Gewichtsteile Kupferchlorür werden in 200 Gewichtsteilen Wasser mehrere Stun den bei 60 gehalten.
Der entstandene Farbstoff, der sich im Laufe der Reaktion in Form von blauen Nä- delchen abscheidet, wird abgesaugt und mit 5 % iger Kochsalzlösung gewaschen. In trocke- nem Zustande stellt er ein blaues Pulver dar, das sich in konzentrierter Schwefelsäure mit Blaugrün der Farbe löst. Der Farbstoff ist in Wasser, auch in angesäuertem, äusserst leicht löslich und färbt Wolle aus saurem Bade in klaren rotstickig blauen Tönen. Die Färbung ist durch eine hervorragende Egalität ausge zeichnet.
Additional patent to main patent No. 287873. Process for the production of an anthraquinone dye. The dyes produced from aniino-halogenanthraquinone-sulphonic 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 with even better properties is obtained if 1-amino-4-liiilogenanthraehinone-2-sulfonic acid is reacted with 1-: \ mino-3-glycolylaminobenzene.
The glycolic acid derivative used can be obtained, for example, if one treats Cliloi-aeetanilid with basic agents, whereby the Cl atom is exchanged for the hydroxyl group, then the glycolic acid anilide obtained is nitrated and reduced, or if one, directly from 3- Nitro- (i) -eliloraeetylanilid starting, the glycolsanre nitroanilide obtained by treatment with alkaline agents is converted into the amino compound by reduction.
Another way of producing the aminoglykol.säitre- anilids is that one stores glycolide or 1'olvglykolid on aniline or 3-nitroaniline, the corresponding Glykol- sänreanilid or glycolic acid nitroanilide he receives, on which one, as described above, reached the desired aminoglycolic anilide.
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-3-glycolamino-benzene and 0.5 part by weight of copper chloride are used in 200 Parts by weight of water kept at 60 for several hours.
The resulting dye, which is deposited in the course of the reaction in the form of blue needles, is filtered off with suction and washed with 5% sodium chloride solution. When dry it is a blue powder which dissolves in concentrated sulfuric acid with a blue-green color. The dye is extremely easily soluble in water, even in acidified water, and dyes wool from an acid bath in clear, red-embroidered blue tones. The coloring is distinguished by an excellent levelness.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB292309X | 1949-09-02 | ||
CH287873T | 1950-08-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH292309A true CH292309A (en) | 1953-07-31 |
Family
ID=25732775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH292309D CH292309A (en) | 1949-09-02 | 1950-08-28 | Process for the preparation of an anthraquinone dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH292309A (en) |
-
1950
- 1950-08-28 CH CH292309D patent/CH292309A/en unknown
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