CH117479A - Process for the preparation of an alkali-like green-blue dye of the triphenylmethane series. - Google Patents

Process for the preparation of an alkali-like green-blue dye of the triphenylmethane series.

Info

Publication number
CH117479A
CH117479A CH117479DA CH117479A CH 117479 A CH117479 A CH 117479A CH 117479D A CH117479D A CH 117479DA CH 117479 A CH117479 A CH 117479A
Authority
CH
Switzerland
Prior art keywords
blue
green
dye
alkali
preparation
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 CH117479A publication Critical patent/CH117479A/en

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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
    • C09B11/10—Amino derivatives of triarylmethanes
    • C09B11/12—Amino derivatives of triarylmethanes without any OH group bound to an aryl nucleus
    • C09B11/14—Preparation from aromatic aldehydes, aromatic carboxylic acids or derivatives thereof and aromatic amines

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

Description

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>116156.</B>    Verfahren zur Darstellung eines     alkaliechten    grünblauen     Farbstoffes     der     Triphenylmethanreihe.       Es wurde gefunden,     'dass    man einen     alka-          liechten    grünblauen Farbstoff der     Triphenyl-          methanreihe    erhält,

   wenn man<B>1</B>     Mol.        o-Sulfo-          benzaldehyd    mit 2     Mol.        2.4-Dichloi-sulfo-          benzyläthylanilin    kondensiert und das ent  standene Kondensationsprodukt oxydiert.  



  Trocken     istderFarbstoff,        derimZustand     der freien Säure die     Di-2.4-dichlorsulfobenzyl-          diäthyldiaininotriphenylkarbinol   <B>-</B> o<B>-</B>     sulfogätire     ist, ein metallisch glänzendes blaues Pulver,  das in Wasser leicht mit schöner blauer Farbe  löslich ist, und färbt Wolle in     blaugrünen     Tönen von besonderer Reinheit und Klarheit,  wobei das Färbebad ausgiebiger als bei dem  entsprechenden chlorfreien Farbstoff erschöpft  wird.  



       Reispiel.-          Das    in bekannter Weise aus     2.4-Dichlor-          benzylchlorid    und     Monoäthylanilin    erhaltene       2.4-Dichlorbenzyläthylanilin    wird     sulflert,    in  dem man<B>1</B> Teil der Base in 1-2 Teilen       Schwefelsäuremonohydrat    löst und in der<B>Käl</B>te  solange mit zwei Äquivalenten     SO3    in Form    von     Oleum    rührt, bis     Alkalilöslichkeit    einge  treten ist.

   Auf diese Weise tritt eine     Sulfo-          gruppe    in den     Benzylrest    ein. Die neue     Stilfo-          säure    stellt ein weisses Pulver dar und ist in  Wasser sehr schwer, in Alkalien leicht löslich.  <B>72</B> Teile der     Sulfosäure    werden mit<B>23</B> Teilen       o-Sulfobenzyldehyd   <B>(90</B>     II/o        ig)    in wässriger  Lösung 24 Stunden unter     Rückfluss    gekocht  und die entstandene     Leukosäure    in saurer  Lösung mit     Bleisuperoxyd    zum Farbstoff oxy  diert.

   Nach dem Abscheiden des Bleis wird  der Farbstoff     ausgesalzen    und getrocknet.



  Additional patent to main patent no. <B> 116156. </B> Process for the preparation of an alkali-proof green-blue dye of the triphenylmethane series. It has been found that an alkali-like green-blue dye of the triphenyl methane series is obtained,

   if <B> 1 </B> mol. o-sulfobenzaldehyde is condensed with 2 mol. 2,4-dichloisulfobenzylethylaniline and the condensation product formed is oxidized.



  The dry color is the di-2,4-dichlorosulfobenzyl diethyldiaininotriphenylcarbinol in the free acid state, a metallic, shiny blue powder that is easily soluble in water with a beautiful blue color is, and dyes wool in blue-green shades of particular purity and clarity, whereby the dye bath is exhausted more extensively than with the corresponding chlorine-free dye.



       Rebeispiel.- The 2,4-dichlorobenzylethylaniline obtained in a known manner from 2,4-dichlorobenzyl chloride and monoethylaniline is sulphurized by dissolving 1 part of the base in 1-2 parts of sulfuric acid monohydrate and adding to the cal </B> te as long as stirred with two equivalents of SO3 in the form of oleum until alkali solubility has occurred.

   In this way a sulfo group enters the benzyl radical. The new stilfic acid is a white powder and is very difficult in water and easily soluble in alkalis. <B> 72 </B> parts of the sulfonic acid are refluxed with <B> 23 </B> parts of o-sulfobenzyldehyde (90 </B> II / o ig) in aqueous solution for 24 hours and the resulting Leucosic acid in acidic solution is oxidized with lead peroxide to form the dye.

   After the lead has been deposited, the dye is salted out and dried.

Claims (1)

PATENTANSPRUCII: Verfahren zurDarstellung eines alkaliechten grünblauen Farbstoffes der Triphenylmethan- reihe, dadurch gekennzeichnet, dass man<B>1.</B> Mol. o-Sulfobenzaldehyd mit 2 Mol. 2,4-Dieblor- sulfobenzyläthylanilin kondensiert und das entstandene Kondensationsprodukt oxydiert. PATENT CLAIM: Process for the preparation of an alkali-fast green-blue dye of the triphenylmethane series, characterized in that <B> 1. </B> mol. O-sulfobenzaldehyde is condensed with 2 mol. 2,4-dieblor-sulfobenzylethylaniline and the resulting condensation product is oxidized. Trocken ist der Farbstoff, der im Zustand der freien Säure die Di-2.4-dichlorsulfobenzyl- diäthyldiaminotriphenylkarbinol <B>-</B> o<B>-</B> sulfosäure ist, ein metallisch glänzendes blaues Pulver, das in Wasser leicht mit schöner blauer Farbe löslich ist, und färbt Wolle in blaugrünen Tönen von besonderer Reinheit und Klarheit, wobei das Färbebad ausgiebiger als bei dem entsprechenden chlorfreien Farbstoff erschöpft wird. The dry dye, which in its free acid state is di-2,4-dichlorosulfobenzyl diethyldiaminotriphenylcarbinol sulfonic acid, is a metallic, shiny blue powder that easily dissolves in water beautiful blue color, and dyes wool in blue-green tones of particular purity and clarity, the dyebath being depleted more extensively than with the corresponding chlorine-free dye.
CH117479D 1925-05-25 1925-05-25 Process for the preparation of an alkali-like green-blue dye of the triphenylmethane series. CH117479A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH117479T 1925-05-25
CH116156T 1926-08-02

Publications (1)

Publication Number Publication Date
CH117479A true CH117479A (en) 1926-11-01

Family

ID=25708654

Family Applications (1)

Application Number Title Priority Date Filing Date
CH117479D CH117479A (en) 1925-05-25 1925-05-25 Process for the preparation of an alkali-like green-blue dye of the triphenylmethane series.

Country Status (1)

Country Link
CH (1) CH117479A (en)

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