CH157559A - Process for the preparation of a vat dye of the anthraquinone series. - Google Patents

Process for the preparation of a vat dye of the anthraquinone series.

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Publication number
CH157559A
CH157559A CH157559DA CH157559A CH 157559 A CH157559 A CH 157559A CH 157559D A CH157559D A CH 157559DA CH 157559 A CH157559 A CH 157559A
Authority
CH
Switzerland
Prior art keywords
preparation
vat dye
anthraquinone
anthraquinone series
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie 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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH157559A publication Critical patent/CH157559A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Darstellung eines     Iilüpenfarbstoffes    der     Antliraehinonreilie.       Im Hauptpatent ist ein Verfahren zur  Darstellung eines     güpenfarbstoffes    beschrie  ben, bei dem     2.1-(N)-Anthrachinonakridon-          6-karbonsäurechlorid    mit     1-Amino-4-methoxy-          anthrachinon    durch Erhitzen in einem Lö  sungsmittel umgesetzt wird.  



  Es wurde nun gefunden, dass man in ganz  analoger Weise einen     Küpenfarbstoff    von ähn  lichen wertvollen Eigenschaften erhalten kann,  wenn man 2 .     1-(N)-1'.2'-Anthrachinonnapht-          al@ridon-6'-karbonsäurechlorid    von der Formel  
EMI0001.0011     
    mit     1-Amino-4-methoxyanthrachinon    durch  Erhitzen in einem Lösungsmittel kondensiert.

      <I>Beispiel:</I>  3,8 Teile 2 . 1- (N) - 1' .     2'-Anthrachi on-          naphtakridon-6'-karbonsäurechlorid    der oben  angegebenen Formel, erhalten durch Kon  densation von     1-Chloranthrachinon-2-karbon-          säure    mit     2-Aminonaphtalin-6-karbonsäure     unter gleichzeitigem     Akridonringschluss    und  Überführung in das Säurechlorid durch Er  hitzen mit     Thionylchlorid    in     Nitrobenzol-          lösung,    werden in 120 Teilen     Nitrobenzol     mit 2,

  2 Teilen     1-Amino-4-methoxyantlira-          chinon   <B>15</B> Minuten lang zum Sieden erhitzt.  Der dabei gebildete, sehr schwer lösliche       Farbstoff    scheidet sich bereits in der Hitze  ab und wird heiss abgesaugt. Gegebenenfalls  kann er durch Auskochen mit verdünnter  Natronlauge gereinigt und aus     Trichlorbenzol     umkristallisiert werden. Er färbt Baumwolle  aus blaustichig roter     Küpe    rotbraun.



  Process for the preparation of an anti-lirae dye. In the main patent, a process for the preparation of a quality dye is described in which 2.1- (N) -anthraquinone acridone-6-carboxylic acid chloride is reacted with 1-amino-4-methoxy-anthraquinone by heating in a solvent.



  It has now been found that a vat dye with similar valuable properties can be obtained in a completely analogous manner if one 2. 1- (N) -1'.2'-anthraquinone naphthalene @ ridon-6'-carboxylic acid chloride of the formula
EMI0001.0011
    condensed with 1-amino-4-methoxyanthraquinone by heating in a solvent.

      <I> Example: </I> 3.8 parts 2. 1- (N) - 1 '. 2'-Anthrachi on-naphtakridone-6'-carboxylic acid chloride of the formula given above, obtained by condensation of 1-chloroanthraquinone-2-carbonic acid with 2-aminonaphthalene-6-carboxylic acid with simultaneous acridone ring closure and conversion into the acid chloride by heating with thionyl chloride in nitrobenzene solution, in 120 parts of nitrobenzene with 2,

  Heat 2 parts of 1-amino-4-methoxyantlirquinone to the boil for 15 minutes. The very sparingly soluble dye formed in the process separates out in the heat and is suctioned off while hot. If necessary, it can be cleaned by boiling it with dilute sodium hydroxide solution and recrystallized from trichlorobenzene. It dyes cotton from a bluish red vat red-brown.

Claims (1)

PATENTANSPRUCH Verfahren zur Darstellung eines Küpen- farbstoffes der Anthrachinonreihe, dadurch ge- kennzeichnet, dass man 2.1-(N)-1' . 2'-Anthra- chinonnaphtakridon-U'-karbonsäurechlorid von der Formel EMI0002.0003 mit 1-Amino-4-methoxyanthrachinon durch Erhitzen in einem Lösungsmittel kondensiert. Der Farbstoff färbt aus blaustichig roter Küpe Baumwolle rotbraun. PATENT CLAIM Process for the preparation of a vat dye of the anthraquinone series, characterized in that 2.1- (N) -1 '. 2'-anthraquinone naphtakridone-U'-carboxylic acid chloride of the formula EMI0002.0003 condensed with 1-amino-4-methoxyanthraquinone by heating in a solvent. The dye turns red-brown cotton from a bluish red vat.
CH157559D 1930-01-18 1930-12-19 Process for the preparation of a vat dye of the anthraquinone series. CH157559A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE157559X 1930-01-18
CH153488T 1930-12-19

Publications (1)

Publication Number Publication Date
CH157559A true CH157559A (en) 1932-09-30

Family

ID=25716207

Family Applications (1)

Application Number Title Priority Date Filing Date
CH157559D CH157559A (en) 1930-01-18 1930-12-19 Process for the preparation of a vat dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH157559A (en)

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