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CH269054A - Process for the production of a new dye of the anthraquinone series. - Google Patents

Process for the production of a new dye of the anthraquinone series.

Info

Publication number
CH269054A
CH269054A CH269054DA CH269054A CH 269054 A CH269054 A CH 269054A CH 269054D A CH269054D A CH 269054DA CH 269054 A CH269054 A CH 269054A
Authority
CH
Switzerland
Prior art keywords
production
dye
anthraquinone series
dichloroquinizarin
new dye
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Sandoz
Original Assignee
Ag Sandoz
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 Ag Sandoz filed Critical Ag Sandoz
Publication of CH269054A publication Critical patent/CH269054A/en

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
    • C09B1/28—Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups
    • C09B1/30—Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups sulfonated
    • C09B1/306—Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups sulfonated only sulfonated in a substituent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 266373.    Verfahren zur Herstellung eines neuen Farbstoffes der     Anthrachinonreihe.       Das vorliegende Patent betrifft ein Ver  fahren zur     Darstellung    eines neuen     wässerlös-          lichen    Farbstoffes der     Anthrachinonreihe    und  ist dadurch gekennzeichnet, dass man eine  Mischung von     Leuko-6,7-dichlorchinizarin    und       6,7-Dichlorchinizarin    mit     2-Amino-1,2,3,4-          Tetrahydronaphthalin    kondensiert und die er  haltene Base     sulfoniert.     



       Beispiel:     10 Teile     Leuko-6,7-diehlorchinizarin,    10  Teile     6,7-Dichlorchinizarin,    50 Teile     2-Amino-          1,2,3,4-tetrahydronaphthalin    und 70 Teile     Me-          thylhexalin    werden so lange bei 120-1500 ge  rührt, bis die     Kondensation    beendet ist. Nach    Oxydation mit einem Luftstrom wird das Kon  densationsprodukt durch Verdünnen mit 150  Teilen Alkohol gefällt und durch Filtration  isoliert.. Man erhält     broncierende    Kristalle, die  sich in organischen Lösungsmitteln blau lösen.

    Durch Behandeln des Kondensationsproduk  tes mit der     4-8fachen    Menge Schwefelsäure  monohydrat bei 0-200 erhält man einen Farb  stoff; der Wolle in sehr lebhaften blauen  Tönen anfärbt.    Der Farbstoff ist ein dunkelblaues Pulver,  das sich in Wasser mit blauer, in Schwefel  säure mit     blassgelber    Farbe löst. Er besitzt  die Formel  
EMI0001.0023     




      Additional patent to main patent No. 266373. Process for the production of a new dye of the anthraquinone series. The present patent relates to a process for the preparation of a new water-soluble dye of the anthraquinone series and is characterized in that a mixture of leuco-6,7-dichloroquinizarin and 6,7-dichloroquinizarin with 2-amino-1,2,3 , 4-tetrahydronaphthalene condensed and sulfonated the base he obtained.



       Example: 10 parts of leuco-6,7-diehlorchinizarin, 10 parts of 6,7-dichloroquinizarin, 50 parts of 2-amino-1,2,3,4-tetrahydronaphthalene and 70 parts of methylhexalin are stirred at 120-1500 for so long until condensation has ended. After oxidation with a stream of air, the condensation product is precipitated by dilution with 150 parts of alcohol and isolated by filtration. Bronzing crystals are obtained which dissolve blue in organic solvents.

    By treating the condensation product with 4-8 times the amount of sulfuric acid monohydrate at 0-200, a dye is obtained; which dyes wool in very vivid blue tones. The dye is a dark blue powder that dissolves blue in water and pale yellow in sulfuric acid. He owns the formula
EMI0001.0023

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen wasserlöslichen Farbstoffes der Anthrachinön- reihe, dadurch gekennzeichnet, dass man eine Mischung von Leuko-6,7-dichlorchinizarin und 6,7-Dichlorchinizarin mit 2-Amino-1,2,3,4-Te- trahydronaphthalin kondensiert und die er haltene Base sulfoniert. Der neue Farbstoff ist ein dunkelblaues Pulver, das sich in Wasser mit blauer, in Schwefelsäure mit, blassgelber Farbe löst und Wolle in sehr lebhaften blauen Tönen anfärbt. Der Farbstoff besitzt die Formel EMI0002.0003 PATENT CLAIM: Process for the production of a new water-soluble dye of the anthraquinone series, characterized in that a mixture of leuco-6,7-dichloroquinizarin and 6,7-dichloroquinizarin with 2-amino-1,2,3,4-Te- condensed trahydronaphthalene and sulfonated the base he obtained. The new dye is a dark blue powder that dissolves in water with a blue color, in sulfuric acid with a pale yellow color and dyes wool in very vivid blue tones. The dye has the formula EMI0002.0003
CH269054D 1943-09-30 1943-09-30 Process for the production of a new dye of the anthraquinone series. CH269054A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH269054T 1943-09-30
CH266373T 1951-11-21

Publications (1)

Publication Number Publication Date
CH269054A true CH269054A (en) 1950-06-15

Family

ID=25730881

Family Applications (1)

Application Number Title Priority Date Filing Date
CH269054D CH269054A (en) 1943-09-30 1943-09-30 Process for the production of a new dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH269054A (en)

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