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CH150619A - Process for the production of a new chlorine-containing dye of the dibenzanthrone series. - Google Patents

Process for the production of a new chlorine-containing dye of the dibenzanthrone series.

Info

Publication number
CH150619A
CH150619A CH150619DA CH150619A CH 150619 A CH150619 A CH 150619A CH 150619D A CH150619D A CH 150619DA CH 150619 A CH150619 A CH 150619A
Authority
CH
Switzerland
Prior art keywords
production
containing dye
chlorine
new
dibenzanthrone series
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH150619A publication Critical patent/CH150619A/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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/22—Dibenzanthrones; Isodibenzanthrones
    • C09B3/30—Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines neuen chlorhaltigen Farbstoffes  der     Dibenzanthronreihe.       Es wurde gefunden, dass man einen neuen  chlorhaltigen Farbstoff der     Dibenzanthron-          reihe    erhält, welcher sowohl als Farbstoff  selbst, - als auch als Zwischenprodukt Be  deutung beansprucht, wenn man auf das       Bz2,Bz2'-Diogydibenzantbron    Formaldehyd       in    Gegenwart von     Chlorsulfonsäure    ein  wirken lässt.  



  Der neue zirka<B>10%</B> Chlor enthaltende  Farbstoff stellt ein blaues Pulver dar, löst  sieh in konzentrierter Schwefelsäure rot  violett auf,     verküpt    mit rotblauer Farbe und  färbt Baumwolle in echten blauen Tönen.  



  <I>Beispiel:</I>  In 270 Teile     Chlorsulfosäure    werden  bei 70 bis<B>80'</B> allmählich 50 Teile     p-Form-          aldehyd    eingetragen, der sich unter Ent  wicklung von Chlorwasserstoff löst. In diese  Lösung     gibt    man bei gleicher Temperatur 30  Teile     Bz2,Bz2'-Diogydibenzanthron    (wie es    zum Beispiel nach dem D. R. P. Nr. 259370  hergestellt werden kann) und rührt bei 70  bis<B>80'</B> noch zirka 3 Stunden weiter. Nach  dem Abkühlen wird die Lösung in Eiswasser  gegossen, der violette Niederschlag ab  gesaugt, neutral gewaschen und getrocknet.



  Process for the production of a new chlorine-containing dye of the dibenzanthrone series. It has been found that a new chlorine-containing dye of the dibenzanthrone series is obtained, which claims importance both as a dye itself and as an intermediate product if formaldehyde is allowed to act on the Bz2, Bz2'-diogydibenzantbron formaldehyde in the presence of chlorosulfonic acid.



  The new dye, which contains about 10% chlorine, is a blue powder, dissolves red-violet in concentrated sulfuric acid, vents with a red-blue color and dyes cotton in real blue tones.



  <I> Example: </I> 50 parts of p-formaldehyde are gradually introduced into 270 parts of chlorosulfonic acid at 70 to <B> 80 '</B>, which dissolves with the development of hydrogen chloride. 30 parts of Bz2, Bz2'-diogydibenzanthrone (as it can be prepared, for example, according to DRP No. 259370) are added to this solution at the same temperature and stirring is continued at 70 to 80 'for about 3 hours . After cooling, the solution is poured into ice water, the purple precipitate is sucked off, washed neutral and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen chlorhaltigen Farbstoffes der Dibenzanthron- reihe, dadurch gekennzeichnet, dass man auf das Bz2,Bz2'-Diogydibenzanthron Formalde hyd in Gegenwart von Chlorsulfonsäure ein wirken lässt. Der neue, zirka 10 % Chlor enthaltende Farbstoff stellt ein blaues Pulver dar, löst sich in konzentrierter Schwefelsäure rot violett auf, verküpt mit rotblauer Farbe und färbt Baumwolle in echten blauen Tönen. PATENT CLAIM: Process for the production of a new chlorine-containing dye of the dibenzanthrone series, characterized in that formaldehyde is allowed to act on the Bz2, Bz2'-diogydibenzanthrone in the presence of chlorosulfonic acid. The new dye, which contains around 10% chlorine, is a blue powder, dissolves in concentrated sulfuric acid in a red-violet color, blends with a red-blue color and dyes cotton in real blue tones.
CH150619D 1930-10-18 1930-10-18 Process for the production of a new chlorine-containing dye of the dibenzanthrone series. CH150619A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH150619T 1930-10-18

Publications (1)

Publication Number Publication Date
CH150619A true CH150619A (en) 1931-11-15

Family

ID=4406013

Family Applications (1)

Application Number Title Priority Date Filing Date
CH150619D CH150619A (en) 1930-10-18 1930-10-18 Process for the production of a new chlorine-containing dye of the dibenzanthrone series.

Country Status (1)

Country Link
CH (1) CH150619A (en)

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