CH246580A - Process for the preparation of a new anthraquinone dye. - Google Patents

Process for the preparation of a new anthraquinone dye.

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Publication number
CH246580A
CH246580A CH246580DA CH246580A CH 246580 A CH246580 A CH 246580A CH 246580D A CH246580D A CH 246580DA CH 246580 A CH246580 A CH 246580A
Authority
CH
Switzerland
Prior art keywords
benzoylamino
anthraquinone
preparation
butylsulfonyl
methylsulfonyl
Prior art date
Application number
Other languages
German (de)
Inventor
Limited Imperial Ch Industries
Original Assignee
Ici Ltd
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 Ici Ltd filed Critical Ici Ltd
Publication of CH246580A publication Critical patent/CH246580A/en

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Description

  

      Verfahren    zur Herstellung eines neuen     Anthrachinon-Farbstoffes.       Gegenstand vorliegender Erfindung ist  ein Verfahren, gemäss welchem ein neuer       Anthrachinon-Küpenfarbstoff,    nämlich     1-p-          n    -     Butylsulf        onyl        -benzoylamino    - 4 -     p-metliyl-          sulfonyl-benzoylamino-anthrachinon,    erhalten  wird;

   dieser neue Farbstoff wird dadurch  erhalten, dass man     1-Amino-4-p-n-butylsul-          f        onyl-benzoylamino-anthraehinon    mit     p-Me-          thylsulfonyl-benzoyl-chlorid    umsetzt.  



  Der so erhaltene Farbstoff färbt Baum  wolle aus einer     bläulichgrauen,    alkalischen       Hydrosulfitküpe    in hellen scharlachroten  Farbtönen von sehr guten Echtheitseigen  schaften, wobei     die    so erzielten Farbtöne  insbesondere in bezug auf ihre Echtheit       beim    Kochen in der     Küpe    denjenigen Fär  bungen überlegen sind, welche bei der Ver  wendung von     1,4-Di-(p-methylsulfonyl-ben-          zoylamino)-anthra.chinon    oder von     1,4-Di-          (p    - n -     butylsulfonyl    -     benzoylamino)

      -     anthra-          chinon    erhalten werden.  



  Die Erfindung sei durch das nach  stehende Beispiel erläutert. Die Teile     be-          deuterx    Gewichtsteile.  



       Beispiel:     9 Teile     p-Methylsulfonyl-benzoesäure,    84  Teile Nitrobenzol und 5 Teile     Thionylchlorid     werden unter Rühren am     Rückflusskühler    so  lange bei 100 C gekocht, bis eine homogene  Lösung entstanden ist. Hierauf wird     das     überschüssige     Thionylchlorid    unter schwach         vermindertem    Druck bei 120  C destilliert  und das verbleibende     Säurechlorid    bei 120  C  mit 10 Teilen     1-Amino-4-p-n-butylsulfonyl-          benzoylamino-anthrachinon    versetzt.

   Das Ge  misch wird nun während     21,i        Stunden    bei  120 C gerührt. Alsdann wird das Gemisch  gekühlt und der Festkörper, der sich hier  bei ausscheidet,     abfiltriert    und so lange  durch Einleiten eines     Wasserdampfstromes     erhitzt, bis alles Nitrobenzol entwichen ist.

    ,Der so erhaltene Farbstoff färbt Baumwolle  aus einer     bläulichgrauen,    alkalischen     Hydro-          sulfitküpe    in hellen scharlachroten Farb  tönen von sehr guten Echtheitseigenschaf  ten, wobei die so erzielten Farbtöne insbe  sondere in bezug auf ihre Echtheit beim  Kochen in der     Küpe    denjenigen Färbungen  überlegen sind, welche bei der Verwendung  von     1,4-Di-(p-methylsulfonyl-benzoylamino)-          a,nthraehinon    oder von     1,4-Di-(p-n-butylsul-          fonyl-benzoylamino)-anthrachinon    erhalten  werden.



      Process for the preparation of a new anthraquinone dye. The present invention relates to a process according to which a new anthraquinone vat dye, namely 1-p-n-butylsulfonylbenzoylamino-4-p-methylsulfonylbenzoylamino-anthraquinone, is obtained;

   this new dye is obtained by reacting 1-amino-4-p-n-butylsulphonyl-benzoylamino-anthraquinone with p-methylsulphonyl-benzoyl chloride.



  The dye obtained in this way dyes cotton from a bluish-gray, alkaline hydrosulfite vat in light scarlet shades of very good fastness properties, the shades thus obtained, in particular with regard to their authenticity when boiled in the vat, are superior to those dyes which are used when used of 1,4-di- (p-methylsulfonyl-benzoylamino) -anthraquinone or of 1,4-di- (p - n - butylsulfonyl - benzoylamino)

      - Anthraquinone can be obtained.



  The invention is illustrated by the example below. The parts are x parts by weight.



       Example: 9 parts of p-methylsulfonylbenzoic acid, 84 parts of nitrobenzene and 5 parts of thionyl chloride are boiled at 100 ° C. with stirring on a reflux condenser until a homogeneous solution has formed. The excess thionyl chloride is then distilled under slightly reduced pressure at 120 ° C. and 10 parts of 1-amino-4-p-n-butylsulfonylbenzoylamino-anthraquinone are added to the acid chloride that remains at 120 ° C.

   The mixture is then stirred at 120 ° C. for 21.1 hours. The mixture is then cooled and the solid that separates out here at is filtered off and heated by passing in a stream of steam until all of the nitrobenzene has escaped.

    The dye obtained in this way dyes cotton from a bluish-gray, alkaline hydrosulfite vat in light scarlet shades of very good fastness properties, the shades obtained in this way, in particular with regard to their fastness when boiled in the vat, are superior to those dyeings that are used in the use of 1,4-di- (p-methylsulfonyl-benzoylamino) -a, nthraehinone or 1,4-di- (pn-butylsulfonyl-benzoylamino) -anthraquinone.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von 1-p-n- Butylsulf onyl - benzoylamino - 4 - p-methylsul- fonyl-benzoylamino-anthrachinon, dadurch gekennzeichnet, dass man 1-Amino-4-p-n- butylsulfonyl - benzoylamino - anthrachinon mit p-Methylsulfonyl-benzoyl-chlorid um setzt. PATENT CLAIM: Process for the preparation of 1-pn-butylsulfonyl-benzoylamino-4-p-methylsulfonyl-benzoylamino-anthraquinone, characterized in that 1-amino-4-pn-butylsulfonyl-benzoylamino-anthraquinone is mixed with p-methylsulfonyl benzoyl chloride implements. Der so erhaltene Farbstoff färbt Baum wolle aus einer bläulichgrauen, alkalischen Hydrosulfitküpe in hellen scharlachroten Farbtönen von sehr guten Echtsheitseigen- schaften, wobei die so erzielten Farbtöne insbesondere in bezug auf ihre Echtheit beim Kochen in der Küpe denjenigen Färbungen überlegen sind, welche bei der Verwendung von 1,4-Di-(p-methylsulfonyl-benzoylamino)- anthrachinon oder von 1, The dye obtained in this way dyes cotton from a bluish-gray, alkaline hydrosulfite vat in light, scarlet shades of very good fastness properties, the shades thus obtained being superior to those dyes that are used when cooking in the vat, in particular with regard to their fastness when cooking 1,4-di- (p-methylsulfonyl-benzoylamino) - anthraquinone or of 1, 4-Di-(p-n-butylsulfo- nyl - benzoylamino) - anthrachinon erhalten werden. 4-di- (p-n-butylsulfonyl - benzoylamino) - anthraquinone can be obtained.
CH246580D 1943-08-03 1944-10-31 Process for the preparation of a new anthraquinone dye. CH246580A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB246580X 1943-08-03
CH241209T 1944-10-31

Publications (1)

Publication Number Publication Date
CH246580A true CH246580A (en) 1947-01-15

Family

ID=25728582

Family Applications (1)

Application Number Title Priority Date Filing Date
CH246580D CH246580A (en) 1943-08-03 1944-10-31 Process for the preparation of a new anthraquinone dye.

Country Status (1)

Country Link
CH (1) CH246580A (en)

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