CH175902A - Process for the preparation of an acidic triphenylmethane dye. - Google Patents

Process for the preparation of an acidic triphenylmethane dye.

Info

Publication number
CH175902A
CH175902A CH175902DA CH175902A CH 175902 A CH175902 A CH 175902A CH 175902D A CH175902D A CH 175902DA CH 175902 A CH175902 A CH 175902A
Authority
CH
Switzerland
Prior art keywords
acidic
preparation
triphenylmethane dye
effected
way
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 CH175902A publication Critical patent/CH175902A/en

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Darstellung eines sauren     Triphenylmethanfarbstoffes.       Gegenstand des vorliegenden Zusatzpa  tentes ist ein Verfahren zur Darstellung  eines sauren     Triphenylmethanfarbstoffes,    wel  ches darin besteht, dass man     4,4'-Dichlor-          benzophenon    mit symmetrischen     Di-n-butyl-          m-xylidin    kondensiert, dann das so erhaltene  Kondensationsprodukt mit     p-Aminodiphenyl-          äther    umsetzt,

   wodurch die in 4- und     4'-          Stellung    befindlichen Chloratome durch die       Basenreste        ersetzt    werden, und die so erhal  tene Verbindung     sulfiert.     



  <I>Beispiel:</I>  25 Gewichtsteile     4,4'-Dichlorbenzophenon     werden mit<B>23,5</B> Gewichtsteilen symmetri  schem     Di-n-butyl-m-xylidin    in Gegenwart  von 20 Gewichtsteilen     Phosphoroxychlorid     durch mehrstündiges Kochen in 100 Gewichts  teilen     Toluol    kondensiert. Nach     Abdestillie-          ren    des     Toluols    und des noch vorhandenen       Phosphoroxychlorids    wird das Kondensations  produkt mit 60 Gewichtsteilen p-Aminodi-         phenyläther    verschmolzen.

   Der überschüssige       p-Aminodiphenyläther    wird nach dem Erkal  ten der Schmelze durch     Ausrühren    mit ver  dünnter Salzsäure entfernt. Der so entstan  dene wasserunlösliche blaue Farbstoff wird  isoliert und auf bekannte Weise     sulfiert.    Die  so erhältliche     Farbstoffdisulfosäure    färbt als       Natriumsalz    Wolle und Seide in leuchtend  sehr     grünstichig-blauen    Tönen von sehr gu  ter Lichtechtheit und vorzüglicher Abendfarbe.



  Process for the preparation of an acidic triphenylmethane dye. The subject of the present additional patent is a process for the preparation of an acidic triphenylmethane dye which consists in condensing 4,4'-dichlorobenzophenone with symmetrical di-n-butyl- m-xylidine, then the condensation product thus obtained with Aminodiphenyl ether converts,

   whereby the chlorine atoms in the 4- and 4'-positions are replaced by the base radicals, and the compound thus obtained is sulfated.



  <I> Example: </I> 25 parts by weight of 4,4'-dichlorobenzophenone are mixed with <B> 23.5 </B> parts by weight of symmetrical di-n-butyl-m-xylidine in the presence of 20 parts by weight of phosphorus oxychloride by boiling for several hours condensed in 100 parts by weight of toluene. After the toluene and the phosphorus oxychloride still present have been distilled off, the condensation product is fused with 60 parts by weight of p-aminodiphenyl ether.

   The excess p-aminodiphenyl ether is removed after the melt has cooled by stirring with dilute hydrochloric acid. The resulting water-insoluble blue dye is isolated and sulfated in a known manner. The sodium salt of the dye disulfonic acid obtainable in this way dyes wool and silk in bright, very greenish-blue shades of very good lightfastness and an excellent evening color.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines sauren Triphenylmethanfarbstoffes, dadurch gekenn zeichnet, dass man 4,4'-Dichlorbenzophenon mit symmetrischem Di-n-butyl-m-xylidin kon densiert, dann das so erhaltene Kondensa tionsprodukt mit p-Aminodiphenyläther um setzt, wodurch die in 4- und 4'-Stellung be findlichen Chloratome durch die Basenreste ersetzt werden, PATENT CLAIM: Process for the preparation of an acidic triphenylmethane dye, characterized in that 4,4'-dichlorobenzophenone is condensed with symmetrical di-n-butyl-m-xylidine, then the condensation product obtained in this way with p-aminodiphenyl ether is implemented, whereby the chlorine atoms in the 4- and 4'-positions are replaced by the base radicals, und die so erhaltene Ver bindung sulfiert. Die so erhältliche h'arbstoffdisulfosäure färbt als Natriumsalz Wolle und Seide in leuchtend sehr grünstichig-blauen Tönen von sehr guter Lichtechtheit und vorzüglicher Abendfarbe. <B>UNTERANSPRÜCHE:</B> 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Kondensation der Ausgangsstoffe in Gegenwart von Phos- phorogychlorid durch mehrstündiges .Kochen in Toluol bewirkt. 2. and the compound thus obtained is sulfated. The dyestuff disulfonic acid obtainable in this way, as the sodium salt, dyes wool and silk in bright, very greenish blue shades of very good lightfastness and an excellent evening color. <B> SUBClaims: </B> 1. Process according to patent claim, characterized in that the condensation of the starting materials is effected in the presence of phosphorogychloride by boiling in toluene for several hours. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Umsetzung mit p -Aminodiphenyläther durch Ver schmelzen bewirkt. Process according to patent claim, characterized in that the reaction with p -aminodiphenyl ether is effected by melting.
CH175902D 1933-06-15 1934-06-13 Process for the preparation of an acidic triphenylmethane dye. CH175902A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE175902X 1933-06-15
CH170094T 1933-08-24

Publications (1)

Publication Number Publication Date
CH175902A true CH175902A (en) 1935-03-15

Family

ID=25718877

Family Applications (1)

Application Number Title Priority Date Filing Date
CH175902D CH175902A (en) 1933-06-15 1934-06-13 Process for the preparation of an acidic triphenylmethane dye.

Country Status (1)

Country Link
CH (1) CH175902A (en)

Similar Documents

Publication Publication Date Title
CH175902A (en) Process for the preparation of an acidic triphenylmethane dye.
CH175903A (en) Process for the preparation of an acidic triphenylmethane dye.
CH175901A (en) Process for the preparation of an acidic triphenylmethane dye.
DE606462C (en) Process for the preparation of acidic triphenylmethane dyes
CH175900A (en) Process for the preparation of an acidic triphenylmethane dye.
CH177133A (en) Process for the preparation of an acidic triphenylmethane dye.
CH222149A (en) Process for the preparation of a triarylmethane dye.
CH175897A (en) Process for the preparation of an acidic triphenylmethane dye.
CH175896A (en) Process for the preparation of an acidic triphenylmethane dye.
CH177139A (en) Process for the preparation of an oxazine dye.
CH212347A (en) Process for the preparation of an acidic triphenylmethane dye.
CH175899A (en) Process for the preparation of an acidic triphenylmethane dye.
CH212348A (en) Process for the preparation of an acidic triphenylmethane dye.
CH194095A (en) Process for the preparation of an acidic chromating dye of the anthraquinone series.
CH170094A (en) Process for the preparation of an acidic triphenyl methane dye.
CH184489A (en) Process for the preparation of a dye of the dioxazine series.
CH210502A (en) Process for the preparation of an acidic triphenylmethane dye.
CH222150A (en) Process for the preparation of a triarylmethane dye.
CH170340A (en) Process for the preparation of 1-methylamino-4- (4&#39;-oxy) -phenylaminoanthraquinone.
CH177140A (en) Process for the preparation of an oxazine dye.
CH203057A (en) Process for the preparation of a chromable dye of the triarylmethane series.
CH216320A (en) Process for the production of an acidic wool dye.
CH177141A (en) Process for the preparation of an oxazine dye.
CH170342A (en) Process for the preparation of 1-ethylamino-4- (4&#39;-amino) -phenylaminoanthraquinone.
CH282631A (en) Process for the preparation of an indolyl-diphenylmethane dye.