CH169566A - Process for the production of a new indigoid dye. - Google Patents

Process for the production of a new indigoid dye.

Info

Publication number
CH169566A
CH169566A CH169566DA CH169566A CH 169566 A CH169566 A CH 169566A CH 169566D A CH169566D A CH 169566DA CH 169566 A CH169566 A CH 169566A
Authority
CH
Switzerland
Prior art keywords
production
dye
indigoid dye
color
ethoxy
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 CH169566A publication Critical patent/CH169566A/en

Links

Landscapes

  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     indigoiden    Farbstoffes.    Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines neuen     indi-          goiden    Farbstoffes, dadurch gekennzeichnet,  dass man     4.7-Dimetliyl-6-äthoxy-3-oxythio-          naplitlien    mit einem     2-Anil    des     2.3-Diketo-          diliydi-o-thionaphthens    kondensiert.  



  Man erhält so einen scharlachroten Farb  stoff, der sich in konzentrierter Schwefelsäure  schwarzviolett löst, mit gelber Farbe     verküpt     und auf Baumwolle ein lebhaftes Scharlach  von guten     Echtheiten    färbt. Der Farbstoff  ist für den Zeugdruck sehr geeignet.  



  <I>Beispiel:</I>       a)        Darstellung   <I>des</I>     Oxythionczphtlaens.     Durch Behandlung von     1.4-Dimethyl-          2    -     amino    - 5 -     äthoxy-benzol    mit Chlorschwefel  nach der deutschen Patentschrift Nr.

   360690,       Verseifung    des erhaltenen     Thiazthionium-          chlorids,    Kondensation des     Aminomerkaptans     mit     Monochloressigsäure    und Behandlung der       diazotierten    1.4-Diniethyl-2-amino-5-äthoxy-         benzol-3-thioglykolsäure    mit     Kupfercyanür     nach     Sandmeyer    erhält man die     1.4-Di-          methyl    -2     -cyan-5-äthoxy-benzol-3-thioglykol-          säure.    Diese wird zum Beispiel nach dem Ver  fahren der deutschen Patentschrift Nr.

   190674  mit Natronlauge erhitzt und der entstandene  Niederschlag der     Amino-thionaphthen-carbon-          säure    mit     Schwefelsäure    angesäuert und län  gere Zeit erwärmt. Man erhält so das     4.7-          Dimethyl-6-äthoxy-3-oxythionapthen,    das bei  94-96   schmilzt.  



  <I>b)</I>     Herstellung   <I>des Farbstoffes.</I>  



  45 Teile des wie oben hergestellten     4.7-          Dimethyl-6-äthoxy-3-oxythionaphthens    wer  den mit 55 Teilen     2.3-Diketodihydrothio-          naphthen-2-(p-diinethyl-amino)anil    in 100 Tei  len Eisessig längere Zeit erhitzt.



  Process for the production of a new indigoid dye. The present patent relates to a process for the production of a new indigoid dye, characterized in that 4,7-dimethyl-6-ethoxy-3-oxythio-naplitlien is condensed with a 2-anil of 2,3-diketodiydi-o-thionaphthene .



  The result is a scarlet color which dissolves in concentrated sulfuric acid in a black-violet color, vents a yellow color and dyes a vivid scarlet with good fastness properties on cotton. The dye is very suitable for stuff printing.



  <I> Example: </I> a) Representation of <I> the </I> Oxythionczphtlaens. By treating 1,4-dimethyl-2-amino-5-ethoxy-benzene with chlorosulfur according to German Patent No.

   360690, saponification of the thiazthionium chloride obtained, condensation of the aminomerkaptan with monochloroacetic acid and treatment of the diazotized 1,4-diniethyl-2-amino-5-ethoxybenzene-3-thioglycolic acid with copper cyanur according to Sandmeyer, the 1,4-dimethyl -2 - is obtained cyano-5-ethoxy-benzene-3-thioglycolic acid. This is, for example, according to the method of German Patent No.

   190674 heated with sodium hydroxide solution and the resulting precipitate of amino-thionaphthenecarboxylic acid acidified with sulfuric acid and heated for a longer time. This gives 4,7-dimethyl-6-ethoxy-3-oxythionaphthene, which melts at 94-96.



  <I> b) </I> Production <I> of the dye. </I>



  45 parts of the 4,7-dimethyl-6-ethoxy-3-oxythionaphthens prepared as above are heated with 55 parts of 2,3-diketodihydrothio- naphthen-2- (p-diinethyl-amino) anil in 100 parts of glacial acetic acid for a long time.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines neuen indigoiden Farbstoffes, dadurch gekennzeich- net, dass man 4.7-Dimethyl-G-äthoxy-3-oxy- thionaphthen mit einem 2-Anil des 2.3-Di- keto-dihydrothionaphthens kondensiert. Man erhält so einen scharlachroten Farb stoff, der sich in konzentrierter Schwefelsäure schwarzviolett löst, mit gelber Farbe verküpt und auf Baumwolle ein lebhaftes Scharlach von guten Echtheiten färbt. Der Farbstoff ist für den Zeugdruck sehr geeignet. PATENT CLAIM Process for the production of a new indigoid dye, characterized in that 4,7-dimethyl-G-ethoxy-3-oxy-thionaphthene is condensed with a 2-anil of 2,3-diketo-dihydrothionaphthene. The result is a scarlet color which dissolves in concentrated sulfuric acid in a black-violet color, vents a yellow color and dyes a vivid scarlet with good fastness properties on cotton. The dye is very suitable for stuff printing.
CH169566D 1932-01-11 1932-12-14 Process for the production of a new indigoid dye. CH169566A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE169566X 1932-01-11
CH166226T 1932-12-14

Publications (1)

Publication Number Publication Date
CH169566A true CH169566A (en) 1934-05-31

Family

ID=25718267

Family Applications (1)

Application Number Title Priority Date Filing Date
CH169566D CH169566A (en) 1932-01-11 1932-12-14 Process for the production of a new indigoid dye.

Country Status (1)

Country Link
CH (1) CH169566A (en)

Similar Documents

Publication Publication Date Title
CH169566A (en) Process for the production of a new indigoid dye.
CH225714A (en) Process for preparing an anthraquinone derivative.
DE611338C (en) Process for the production of halogen-containing Kuepen dyes
CH184196A (en) Process for the production of an indigoid vat dye.
CH224549A (en) Process for the preparation of a new dye of the anthraquinone series.
CH110420A (en) Process for the production of a vat dye.
CH197187A (en) Process for the production of a sulfur dye.
CH179679A (en) Process for the preparation of a new millfast anthraquinone dye.
CH140922A (en) Process for the preparation of a vat dye of the pyrenequinone series.
CH172368A (en) Process for the production of a new dye.
CH183685A (en) Process for the production of a new azo dye.
CH204128A (en) Process for the production of a vat dye.
CH152487A (en) Process for the production of a wool dye of the anthraquinone series.
CH166075A (en) Process for the production of a new azo dye.
CH186169A (en) Process for the production of a new azo dye.
CH155024A (en) Process for the production of a new azo dye.
CH162150A (en) Process for the production of a new azo dye.
CH175031A (en) Process for the production of a new azo dye.
CH209643A (en) Process for the production of a vat dye
CH177839A (en) Process for the production of a new azo dye.
CH180963A (en) Process for the production of a vat dye.
CH185953A (en) Process for the production of a new anthraquinone vat dye.
CH178427A (en) Process for the production of a vat dye.
CH145996A (en) Process for the production of a new azo dye.
CH169564A (en) Process for the production of a new indigoid dye.