DE1081584B - Process for the production of Kuepen dyes - Google Patents

Process for the production of Kuepen dyes

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Publication number
DE1081584B
DE1081584B DEC17289A DEC0017289A DE1081584B DE 1081584 B DE1081584 B DE 1081584B DE C17289 A DEC17289 A DE C17289A DE C0017289 A DEC0017289 A DE C0017289A DE 1081584 B DE1081584 B DE 1081584B
Authority
DE
Germany
Prior art keywords
production
dyes
anthraquinone
bromophenyl
amino
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DEC17289A
Other languages
German (de)
Inventor
Dr Werner Zerweck
Dr Ernst Heinrich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cassella Farbwerke Mainkur AG
Original Assignee
Cassella Farbwerke Mainkur AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cassella Farbwerke Mainkur AG filed Critical Cassella Farbwerke Mainkur AG
Priority to DEC17289A priority Critical patent/DE1081584B/en
Publication of DE1081584B publication Critical patent/DE1081584B/en
Pending legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/22General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using vat dyestuffs including indigo

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Description

Verfahren zur Herstellung von Küpenfarbstoffen Es wurde gefunden, daß man wertvolle Küpenfarbstoffe erhält, wenn man 4-Amino-anthrachinon-2,1(N)-benzacridone mit 2-(Halogenphenyl)-benzoxazolen, wobei diese Reaktionskomponenten in den - Bz-Kernen einwertige, bei Küpenfarbstoffen übliche Substituenten enthalten können, in der für die Anthrimidbildung üblichen Weise kondensiert. -Die erfindungsgemäß herstellbaren Farbstoffe -entsprechen der allgemeinen Formel worin die Bz-Kerne einwertige, bei Küpenfarbstoffen übliche Substituenten enthalten können.Process for the preparation of vat dyes It has been found that valuable vat dyes are obtained if 4-amino-anthraquinone-2,1 (N) -benzacridones with 2- (halophenyl) -benzoxazoles, these reaction components being monovalent in the Bz nuclei , can contain substituents customary in vat dyes, condensed in the manner customary for anthrimide formation. The dyes which can be prepared according to the invention correspond to the general formula in which the Bz nuclei may contain monovalent substituents customary in vat dyes.

Die so erhältlichen-Farbstoffe ergeben auf nativer oder regenerierter Cellulose grüne Farbtöne von sehr guten Echtheitseigenschaften, insbesondere hervorragender Lichtechtheit.The dyes obtainable in this way result in native or regenerated Cellulose green shades with very good fastness properties, especially excellent Lightfastness.

Der gemäß nachfolgendem Beispiel, Absatz 1, herstellbare Farbstoff besitzt bessere färberische Eigenschaften, insbesondere bessere Licht- und Wetterechtheit, als der gemäß der französischen Patentschrift 1148 336 Beispiel 1, Absatz 2, herstellbare Farbstoff ähnlicher Konstitution, der an Stelle des Benzoxazolrestes einen 5,6-Phthalyl-benzoxazolrest enthält.The dye which can be prepared according to the following example, paragraph 1, has better dyeing properties, in particular better light and weather fastness, than the dye of a similar constitution which can be prepared according to French patent specification 1 148 336 Example 1, paragraph 2, which instead of the benzoxazole residue has a 5, Contains 6-phthalylbenzoxazole radical.

Beispiel Ein Gemisch aus 400 Teilen Nitrobenzol, 10,2 Teilen 4-Amino-anthrachinon-2,1(N)-benzacridon, 11,0 Teilen 2-(p-Bromphenyl)-benzoxazol, 5,0 Teilen Natriumacetat, 0,5 Teilen Kupferacetat und 0,5 Teilen Kupferpulver wird 24 Stunden auf 210° C erhitzt. Dann wird mäßig warm abgesaugt und der Rückstand zunächst mit Nitrobenzol, dann mit Methanol und schließlich mit heißem Wasser gut ausgewaschen. Das getrocknete, grüne Farbstoffpulver löst sich in konzentrierter Schwefelsäure mit oranger Farbe. Natürliche oder regenerierte Cellulose wird aus roter Küpe gelbstichiggrün gefärbt; die Färbungen sowie die entsprechenden Drucke weisen sehr gute Echtheitseigenschaften auf, insbesondere hervorragende Lichtechtheit.Example A mixture of 400 parts of nitrobenzene, 10.2 parts of 4-amino-anthraquinone-2,1 (N) -benzacridone, 11.0 parts of 2- (p-bromophenyl) benzoxazole, 5.0 parts of sodium acetate, 0.5 parts of copper acetate and 0.5 part of copper powder is heated to 210 ° C for 24 hours. Then becomes moderate Sucked off warm and the residue first with nitrobenzene, then with methanol and finally washed out well with hot water. The dried, green dye powder dissolves in concentrated sulfuric acid with an orange color. Natural or regenerated Cellulose is colored yellowish green from a red vat; the colorations as well as the corresponding Prints have very good fastness properties, in particular excellent light fastness.

Farbstoffe von ähnlichen Eigenschaften werden erhalten, wenn das 2-(p-Bromphenyl)-benzoxazol ersetzt wird durch 2-(p-Bromphenyl)-5-chlor-benzoxazol, 2-(p-Bromphenyl)-7-chlor-benzoxazol oder 2-(p-Bromphenyl)-5,7-dichlor-benzoxazol, oder wenn an Stelle des 4-Aminoanthrachinon-2,1(N)-benzacridons zur Kondensation 4-Amino-4'-chlor-anthrachinon-2,1(N)-benzacridon, 4-Amino-5'-fluor-anthrachinon-2,1(N)-benzacridon, 4-Amin.o-5'-chlor-anthrachinon-2,1(N)-benzacridon oder 4-Amino-4'-trifluormethyl-anthrachinon-2,1(N)-benzacridon verwendet wird.Dyes of similar properties are obtained when the 2- (p-bromophenyl) -benzoxazole is replaced by 2- (p-bromophenyl) -5-chlorobenzoxazole, 2- (p-bromophenyl) -7-chlorobenzoxazole or 2- (p-bromophenyl) -5,7-dichlorobenzoxazole, or if in place of the 4-aminoanthraquinone-2,1 (N) -benzacridone for condensation 4-amino-4'-chloro-anthraquinone-2,1 (N) -benzacridone, 4-amino-5'-fluoro-anthraquinone-2,1 (N) -benzacridone, 4-amin.o-5'-chloro-anthraquinone-2,1 (N) -benzacridone or 4-amino-4'-trifluoromethyl-anthraquinone-2,1 (N) -benzacridone is used.

Wird das 2-(p-Bromphenyl)-benzoxazol durch das 2-(m-Bromphenyl)-benzoxazol ersetzt, so wird ein Farbstoff erhalten, der sich in konzentrierter Schwefelsäure mit braunoranger Farbe löst und aus roter Küpe auf Cellulosefasern blaustichiggrüne Töne von ebenfalls sehr guten Echtheitseigenschaften ergibt.If 2- (p-bromophenyl) -benzoxazole is replaced by 2- (m-bromophenyl) -benzoxazole replaced, a dye is obtained which is dissolved in concentrated sulfuric acid dissolves with brown-orange color and from red vat on cellulose fibers bluish green Also gives tones of very good fastness properties.

Das zur Kondensation benötigte 2-(p-Bromphenyl)-benzoxazol wird erhalten durch Kondensation von o-Aminophenol mit p-Brombenzoylchlorid. Es bildet, aus o-Dichlorbenzol umkristallisiert, farblose Kristallnadeln, die bei 152 bis 154° C schmelzen. Die entsprechende m-Brom-benzoyl-verbindung schmilzt, aus Monochlorbenzol umkristallisiert, bei 136 bis 138° C.The 2- (p-bromophenyl) -benzoxazole required for the condensation is obtained by condensation of o-aminophenol with p-bromobenzoyl chloride. It forms from o-dichlorobenzene recrystallized, colorless crystal needles that melt at 152 to 154 ° C. the corresponding m-bromo-benzoyl compound melts, recrystallized from monochlorobenzene, at 136 to 138 ° C.

Claims (1)

PATENTANSPRUCH': Verfahren zur Herstellung von Küpenfarbstoffen der Formel die in den Bz-Kernen einwertige, bei Küpenfarbstoffeii übliche Substituenten enthalten können, dadurch gekennzeichnet, daß man 4-Amino-anthrachinon-2,1(N)-benzacridone und 2-(Halogenphenyl)-benzoxazole, die in den Bz-Kernen gegebenenfalls entsprechend substituiert sind, in der für die Anthrirnidbüdung üblichen Weise kondensiert. In Betracht gezogene Druckschriften: Französische Patentschriften -r. 835 268, 1148-336. PATENT CLAIM ': Process for the production of vat dyes of the formula which may contain monovalent substituents in the Bz nuclei, customary in vat dye, characterized in that 4-amino-anthraquinone-2,1 (N) -benzacridones and 2- (halophenyl) -benzoxazoles, which may be present in the Bz nuclei are substituted accordingly, condensed in the usual way for the Anthrirnidbüdung. Documents considered: French patents -r. 835 268, 1148-336.
DEC17289A 1958-08-01 1958-08-01 Process for the production of Kuepen dyes Pending DE1081584B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC17289A DE1081584B (en) 1958-08-01 1958-08-01 Process for the production of Kuepen dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC17289A DE1081584B (en) 1958-08-01 1958-08-01 Process for the production of Kuepen dyes

Publications (1)

Publication Number Publication Date
DE1081584B true DE1081584B (en) 1960-05-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEC17289A Pending DE1081584B (en) 1958-08-01 1958-08-01 Process for the production of Kuepen dyes

Country Status (1)

Country Link
DE (1) DE1081584B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR835268A (en) * 1937-03-17 1938-12-16 Ig Farbenindustrie Ag Anthraquinone derivatives and their production process
FR1148336A (en) * 1955-05-04 1957-12-06 Cassella Farbwerke Mainkur Ag Vat dyes and their preparation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR835268A (en) * 1937-03-17 1938-12-16 Ig Farbenindustrie Ag Anthraquinone derivatives and their production process
FR1148336A (en) * 1955-05-04 1957-12-06 Cassella Farbwerke Mainkur Ag Vat dyes and their preparation

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