CH257294A - Process for the production of an indigoid vat dye. - Google Patents

Process for the production of an indigoid vat dye.

Info

Publication number
CH257294A
CH257294A CH257294DA CH257294A CH 257294 A CH257294 A CH 257294A CH 257294D A CH257294D A CH 257294DA CH 257294 A CH257294 A CH 257294A
Authority
CH
Switzerland
Prior art keywords
production
vat dye
dye
formula
blue
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Ciba
Original Assignee
Ciba Geigy
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 Ciba Geigy filed Critical Ciba Geigy
Publication of CH257294A publication Critical patent/CH257294A/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
    • C09B7/00—Indigoid dyes
    • C09B7/06—Indone-thionapthene indigos

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 251880.    Verfahren zur Herstellung eines     indigoiden        Küpenfarbstoffes.       Es wurde gefunden, dass ein     indigoider          Küpenfarb        toff        hergestellt    werden kann,  wenn man ein den Rest der     Formel     
EMI0001.0008     
    abgebendes Mittel mit einem den Rest der  Formel  
EMI0001.0009     
         abgebenden    Mittel kondensiert.

           Der        neue        Farbstoff    ist ein     violettstichig     blaues Pulver,     dass        sich    in     konzentrierter     Schwefelsäure mit blauer Farbe löst und  Baumwolle aus gelber     Küpe    in     rötlichblauen     Nuancen färbt.  



       Al':,    Verbindungen, die den erstgenannten       Resit    abzugeben imstande sind, kommen bei  spielsweise das 5,8 -     Dichlor    - 1,2 -     naphth-          thioindoxyl,    als Verbindungen, die den zweit  genannten     Rest    abzugeben imstande sind,  kommen beispielsweise reaktionsfähige     a-De-          rivate    des 5,7 -     Dibromisatins,    z. B. das       a-Chlorid,    in Betracht.    Die Kondensation der beiden Komponen  ten kann vorteilhaft in einem indifferenten  Medium, so z.

   B. in     Lösungsmitteln    wie       Chlorbenzol,    durchgeführt werden.  



  Das dem vorliegenden     Verfahren    z. B. als       Ausgangsstoff    dienende 5,8 -     Dichlor    -1,2     -          naphththioindoxyl    kann nach den Angaben  des     Hauptpatentes    erhalten werden.    <I>Beispiel:</I>    <B>305</B> Teile     5,7-Dibromisatin    werden durch       einstündiges    Erwärmen mit 260 Teilen       Phosphorpentachlorid    und 6000 Teilen Chlor  benzol auf 110-120  in das     a-Chlorid    über  geführt.

   Die Lösung     des    Chlorids wird mit  der Lösung von 269 Teilen     5,8-Dichlor-1,2-          naphththioindoxyl    in 10 000     Teilen        Cblor-          benzal    bei 70      vereinigt.    Nach dem Erkalten  wird der Farbstoff abgesaugt, mit Alkohol       gewaschen    und getrocknet.



  <B> Additional patent </B> to main patent no. 251880. Process for the production of an indigoid vat dye. It has been found that an indigoid vat dye can be made using the remainder of the formula
EMI0001.0008
    dispensing agent with a remainder of the formula
EMI0001.0009
         condensing agent.

           The new dye is a violet-tinged blue powder that dissolves in concentrated sulfuric acid with a blue color and dyes cotton from a yellow vat in reddish-blue shades.



       Al ': Compounds that are able to give off the first-mentioned resistance are, for example, 5,8-dichloro-1,2-naphth-thioindoxyl, compounds which are able to give off the second-mentioned radical are, for example, reactive a-De - derivatives of 5,7 - dibromoisatin, z. B. the a-chloride into consideration. The condensation of the two compo th can be advantageous in an indifferent medium, such.

   B. in solvents such as chlorobenzene.



  The present process z. B. 5,8 - dichloro -1,2 - naphthioindoxyl used as starting material can be obtained according to the information in the main patent. <I> Example: </I> <B> 305 </B> parts of 5,7-dibromoisatin are converted into the α-chloride by heating with 260 parts of phosphorus pentachloride and 6000 parts of chlorobenzene to 110-120 for one hour.

   The solution of the chloride is combined at 70 with the solution of 269 parts of 5,8-dichloro-1,2-naphththioindoxyl in 10,000 parts of Cblorbenzal. After cooling, the dye is filtered off with suction, washed with alcohol and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines indi- goiden Küpenfarbstoffes, dadurch gekenn zeichnet, dass man ein den Rest der Formel 55 EMI0001.0054 abgebendes ' Mittel mit einem den Rest der Formel EMI0002.0002 abgebenden Mittel kondensiert. PATENT CLAIM: A process for the production of an indigoid vat dye, characterized in that the remainder of the formula 55 EMI0001.0054 dispensing agent with one of the rest of the formula EMI0002.0002 condensing agent. Der neue Farbstoff ist ein violettstichig blaues Pulver, das (sich in konzentrierter Schwefelsäure mit blauer Farbe löst und Baumwolle aus gelber güpe in rötlichblauen Nuancen färbt. UNTERANSPRUCH: Verfahren gemäss Patentanspruch, ge kennzeichnet durch die Durchführung der Reaktion in einem indifferenten Medium. The new dye is a violet-tinged blue powder which (dissolves in concentrated sulfuric acid with a blue color and dyes cotton from yellow güpe in reddish-blue nuances. SUBCLAIM: Process according to patent claim, characterized by carrying out the reaction in an inert medium.
CH257294D 1944-10-13 1944-10-13 Process for the production of an indigoid vat dye. CH257294A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH257294T 1944-10-13
CH251880T 1944-10-13

Publications (1)

Publication Number Publication Date
CH257294A true CH257294A (en) 1948-09-30

Family

ID=25729578

Family Applications (1)

Application Number Title Priority Date Filing Date
CH257294D CH257294A (en) 1944-10-13 1944-10-13 Process for the production of an indigoid vat dye.

Country Status (1)

Country Link
CH (1) CH257294A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1053046B (en) * 1956-11-21 1959-03-19 Standard Elektrik Lorenz Ag Method for the transmission of a very large number of message channels over a transmission path with a large bandwidth

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1053046B (en) * 1956-11-21 1959-03-19 Standard Elektrik Lorenz Ag Method for the transmission of a very large number of message channels over a transmission path with a large bandwidth

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