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CH210534A - Process for the preparation of an acidic dye. - Google Patents

Process for the preparation of an acidic dye.

Info

Publication number
CH210534A
CH210534A CH210534DA CH210534A CH 210534 A CH210534 A CH 210534A CH 210534D A CH210534D A CH 210534DA CH 210534 A CH210534 A CH 210534A
Authority
CH
Switzerland
Prior art keywords
methyl
dye
acidic dye
preparation
parts
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 CH210534A publication Critical patent/CH210534A/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
    • C09B11/00—Diaryl- or thriarylmethane dyes
    • C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/26—Triarylmethane dyes in which at least one of the aromatic nuclei is heterocyclic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 208352.    Verfahren zur Herstellung eines sauren     Farbstoffes.       Im     Hauptpatent        Nr.        ,2088i52    ist ein Ver  fahren zur Herstellung eines sauren Farb  stoffes angegeben, bei dem 1 Hol     N-Methyl-          4    -     äthogydiphenylamin    -     4'-    carbonsäure mit  2 Hol     1-Methyl--2-phenylindol        mittels        Phos-          phorogychlorid    kondensiert wird,

   worauf der       erhaltene    basische Farbstoff so lange mit  einem sulfonierend wirkenden Mittel behan  delt wird, bis zwei     Sülfonsäuregruppen    ein  getreten sind.  



  Es wurde nun gefunden, dass man einen  ebenfalls sehr wertvollen Farbstoff erhält,  wenn man 1 Hol     1-Methyl-2-phenylindol-3-          carbonsäure    mit 2 Hol     N-Methyl-4-@äthogy-          diphenylamin    mittels     Phosphorogychlorid     kondensiert und den erhaltenen basischen  Farbstoff so lange mit einem sulfonierend  wirkenden Mittel     behandelt,    bis zwei     Sulfon-          säuregruppen    eingetreten sind..  



  Der neue Farbstoff färbt Wolle und  Seide in klaren blauen Tönen von ausgezeich  neter Lichtechtheit.    <I>Beispiel:</I>  Man erhitzt 12,6 Teile     1-Methyl-2-phe-          nylindol--3-narbonsäure,    22,7 Teile     N-Methyl-          4-äthogydiphenylamin    und     1'6,4    Teile     Phos-          phorogychlorid    in 12,6 Teilen     Toluol    20     Stun-          .den    lang bei<B>95'C.</B> Der entstandene basische  Farbstoff wird abgeschieden, gereinigt und  getrocknet.

   30 Teile .davon werden in 100  Teile 96%ige Schwefelsäure     eingerührt,    wor  auf die Lösung so lange erwärmt     wird,    bis  der Farbstoff     alkalilöslich    geworden ist. Man  giesst dann die     Umsetzungsmischung    auf Eis  und scheidet die entstandene     Disulfonsäure     des     Farbstoffes    durch     Zusatz    von     Natrium-          carbonat    ab. Er färbt Wolle und Seide in       klaren        (blauen    Tönen von     ausgezeichneter     Lichtechtheit.



  <B> Additional patent </B> to main patent no. 208352. Process for the production of an acidic dye. In the main patent no., 2088i52 a process for the production of an acidic dye is given in which 1 hol N-methyl- 4 - ethogydiphenylamine - 4'-carboxylic acid with 2 hol 1-methyl - 2-phenylindole by means of phosphorogychloride condenses becomes,

   whereupon the basic dye obtained is treated with a sulfonating agent until two sulfonic acid groups have occurred.



  It has now been found that a very valuable dye is obtained if 1 part of 1-methyl-2-phenylindole-3-carboxylic acid is condensed with 2 parts of N-methyl-4- @ ethogy-diphenylamine by means of phosphorogychloride and the basic dye obtained treated with a sulfonating agent until two sulfonic acid groups have formed ..



  The new dye dyes wool and silk in clear blue tones with excellent lightfastness. <I> Example: </I> 12.6 parts of 1-methyl-2-phenylindole-3-narboxylic acid, 22.7 parts of N-methyl-4-ethogydiphenylamine and 16.4 parts of phosphorus are heated phorogychloride in 12.6 parts of toluene for 20 hours at 95 ° C. The resulting basic dye is separated off, cleaned and dried.

   30 parts of it are stirred into 100 parts of 96% sulfuric acid, whereupon the solution is heated until the dye has become alkali-soluble. The reaction mixture is then poured onto ice and the disulfonic acid formed in the dye is separated off by adding sodium carbonate. It dyes wool and silk in clear blue shades of excellent lightfastness.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines sauren Farbstoffes, dadurch gekennzeichnet, dass man 1 Hol 1-Methyl-2-phenylindol-3-carbon- säure mit 2 Mol N-Methy 1-4-äthoxydipheny 1- amin mittels Phosphoroxyehlorid kondensiert. und den erhaltenen basisehen Farbstoff so lange mit einem sulfonierend wirkenden Mittel behandelt, bis zwei .Sulfons@äurebrtup- pen einbetreten sind. PATENT CLAIM Process for the production of an acidic dye, characterized in that 1 hol of 1-methyl-2-phenylindole-3-carboxylic acid is condensed with 2 moles of N-methyl 1-4-ethoxydipheny-amine by means of phosphorus oxychloride. and the basic dyestuff obtained is treated with a sulfonating agent until two .Sulfons @ äurebrtup- pen are entered. Der neue Farbstoff färbtWolle und Seide in klaren blauen Tönen von ausgezeichneter Liehtechtheit. The new dye dyes wool and silk in clear blue tones with excellent lightfastness.
CH210534D 1937-12-03 1938-11-02 Process for the preparation of an acidic dye. CH210534A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE208352X 1937-12-03
CH208352T 1938-11-02

Publications (1)

Publication Number Publication Date
CH210534A true CH210534A (en) 1940-07-15

Family

ID=25724513

Family Applications (3)

Application Number Title Priority Date Filing Date
CH210532D CH210532A (en) 1937-12-03 1938-11-02 Process for the preparation of an acidic dye.
CH210534D CH210534A (en) 1937-12-03 1938-11-02 Process for the preparation of an acidic dye.
CH210533D CH210533A (en) 1937-12-03 1938-11-02 Process for the preparation of an acidic dye.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH210532D CH210532A (en) 1937-12-03 1938-11-02 Process for the preparation of an acidic dye.

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH210533D CH210533A (en) 1937-12-03 1938-11-02 Process for the preparation of an acidic dye.

Country Status (1)

Country Link
CH (3) CH210532A (en)

Also Published As

Publication number Publication date
CH210533A (en) 1940-07-15
CH210532A (en) 1940-07-15

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