CH216122A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH216122A
CH216122A CH216122DA CH216122A CH 216122 A CH216122 A CH 216122A CH 216122D A CH216122D A CH 216122DA CH 216122 A CH216122 A CH 216122A
Authority
CH
Switzerland
Prior art keywords
condensed
acid
production
parts
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 CH216122A publication Critical patent/CH216122A/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
    • C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
    • C09B5/62—Cyclic imides or amidines of peri-dicarboxylic acids of the anthracene, benzanthrene, or perylene series

Landscapes

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

Description

  

  <B>Zusatzpatent</B>     zum        Hauptpatent    Nr. 213257.    Verfahren zur Herstellung eines     güpenfarbstoffes.       Gegenstand des vorliegenden Zusatzpaten  tes ist ein Verfahren zur Herstellung eines       Küpenfarbstoffes,        welches    dadurch gekenn  zeichnet ist, dass man 1     Mol        Dimethoxy-          perylentetracarbonsäure,    die erhältlich ist,  wenn man     3-Methoxynaphthalsäure    mit Ma  lonsäurediäthylester in Gegenwart von Zink  chlorid durch Erhitzen kondensiert,

   das so  erhaltene     3-Methoxyperinaphthindandion    bei  160 bis<B>170'</B> C der     A.lkailischmelze    unter  wirft und das so erhaltene     Dimethoxydiin-          dandion    in     alkalischer    Lösung mit Chlor  lauge oxydiert, mit 2     Mol        1-Chlor-3.4-di-          aminobenzol    kondensiert.  



  <I>Beispiel:</I>  40     Gewichtsteile        Dimethoxyperylentetra-          carbonsäure    werden mit 30 Gewichtsteilen 1  Chlor-3.4-diaminobenzol in einem Gemisch  aus 3000     Volumteilen    Nitrobenzol und 70       Volumteilen    Eisessig 5 bis 6     Stunden    zum    Sieden erhitzt. Der     auskristallisierte    Farb  stoff wird     abgesaugt    und mit     Nitrobenzol     und Eisessig gewaschen.

   Man erhält violette       Nädelchen,    die sich in konzentrierter Schwe  felsäure mit grünblauer Farbe lösen und  Baumwolle aus violetter     Küpe    in     dunkel-          blauen,    sehr echten     \Fönen    färben.



  <B> Additional patent </B> to main patent no. 213257. Process for the production of a high quality dye. The subject of the present additional patent is a process for the production of a vat dye, which is characterized in that 1 mole of dimethoxyperylenetetracarboxylic acid, which is obtainable when 3-methoxynaphthalic acid is condensed with diethyl malonate in the presence of zinc chloride, is condensed by heating,

   the 3-methoxyperinaphthindanedione thus obtained is subjected to the alkali melt at 160 to 170 ° C and the dimethoxydiindanedione thus obtained is oxidized in alkaline solution with chlorine lye, with 2 moles of 1-chloro-3,4-di - aminobenzene condensed.



  <I> Example: </I> 40 parts by weight of dimethoxyperylenetetra- carboxylic acid are heated to boiling for 5 to 6 hours with 30 parts by weight of 1 chloro-3,4-diaminobenzene in a mixture of 3000 parts by volume of nitrobenzene and 70 parts by volume of glacial acetic acid. The color which has crystallized out is filtered off with suction and washed with nitrobenzene and glacial acetic acid.

   Violet needles are obtained which dissolve in concentrated sulfuric acid with a green-blue color and dye cotton from a violet vat in dark-blue, very real hairdryers.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Küpen- farbstoffes,dadurch gekennzeichnet, dass man 1 Mol Dimethoxyperylentetracarbonsäure, die erhältlich ist, wenn man 3-Methoxynaph- thalsäure mit Malonsäurediäthylester in Ge genwart von Zinkohlorid durch Erhitzen kondensiert, PATENT CLAIM: A process for the production of a vat dye, characterized in that 1 mol of dimethoxyperylenetetracarboxylic acid, which is obtainable when 3-methoxynaphthalic acid is condensed with diethyl malonate in the presence of zinc chloride, is condensed by heating, das- so erhaltene 3-Methoxy- perinaphthindandion bei 160 bis 170 C der Adkalischmelze unterwirft und .das so erhal tene Dimethoxydiindandion in alkalischer Lösung mit Chlorlauge oxydiert, mit 2 Mol 1-Chlor-3. 4-diaminobenzol kondensiert. Der so erhaltene Farbstoff färbt Baum wolle aus violetter Küpe in dunkelblauen sehr echten Tönen. the 3-methoxyperinaphthindanedione thus obtained is subjected to adkali melt at 160 to 170 ° C. and the dimethoxydiindanedione thus obtained is oxidized in alkaline solution with sodium chloride solution, with 2 moles of 1-chloro-3. 4-diaminobenzene condensed. The dye obtained in this way dyes cotton from a violet vat in very real dark blue tones. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Kondensation der Reaktionskomponenten durch Sieden in einem Überschuss eines Gemisches aus 3000 Volumteilen Nitrobenzol und 70 Vodumteilen Eisessig während 5 bis 6 Stunden bewirkt.. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that the reaction components are condensed by boiling in an excess of a mixture of 3000 parts by volume of nitrobenzene and 70 parts by volume of glacial acetic acid for 5 to 6 hours.
CH216122D 1938-03-28 1939-03-22 Process for the production of a vat dye. CH216122A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE216122X 1938-03-28
CH213257T 1939-03-22

Publications (1)

Publication Number Publication Date
CH216122A true CH216122A (en) 1941-07-31

Family

ID=25725403

Family Applications (1)

Application Number Title Priority Date Filing Date
CH216122D CH216122A (en) 1938-03-28 1939-03-22 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH216122A (en)

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