CH183901A - Process for the preparation of a carbocyanine dye. - Google Patents

Process for the preparation of a carbocyanine dye.

Info

Publication number
CH183901A
CH183901A CH183901DA CH183901A CH 183901 A CH183901 A CH 183901A CH 183901D A CH183901D A CH 183901DA CH 183901 A CH183901 A CH 183901A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
benzene
carbocyanine dye
trimethyl
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 CH183901A publication Critical patent/CH183901A/en

Links

Description

  

  Verfahren zur Herstellung eines     Carbocyaninfarbstoi%s.       Gegenstand des vorliegenden Zusatzpa  tentes ist ein Verfahren zur Herstellung eines       Carbocyaninfarbstoffes,    welches dadurch ge  kennzeichnet ist, dass man     1.3.3-Ti-imethyl-          5-inetlioxy-indolin-2-rnethyleii-cu-aldehyd    mit  1. 3 . 3     -Trimethyl-5-metlioxy-2-ni        etliylen        ii2    d o  liv in Gegenwart von     Phosphoroxycblorid          kondensiert.     



  <I>Beispiel</I>  23 Gewichtsteile     1.3.3-Ti-imethylen-5-          inethoxy-iridolin-2-inethylen-m-aldehyd    wer  den mit 20 Gewichtsteilen     1.3.3-Ti,imethyl-          5-methoxy-2-inethylenindolin    in 100 Gewichts  teilen Benzol gelöst und nach     Zutropfen    von  G Gewichtsteilen     Phosphoroxyehlorid    auf       Siedetemperatur    des Benzols so lange erhitzt,  bis die     Farbstoffbildung    beendet ist.

   Man  erhält so einen wasserlöslichen, basischen,  violetten     Farbstoff,    der die bekannten basi  schen Violetts an Klarheit wesentlich über-         trifft    und gute Echtheitseigenschaften auf  weist.



  Process for the preparation of a carbocyanine dye. The subject of the present additional patent is a process for the production of a carbocyanine dye, which is characterized in that 1.3.3-Ti-imethyl-5-inetlioxy-indoline-2-methylene-cu-aldehyde with 1. 3. 3-Trimethyl-5-metlioxy-2-ni etliylen ii2 d o liv condensed in the presence of Phosphoroxycblorid.



  <I> Example </I> 23 parts by weight of 1.3.3-Ti-imethyl-5-ynethoxy-iridoline-2-ynethylene-m-aldehyde who with 20 parts by weight of 1.3.3-Ti, imethyl-5-methoxy-2- inethyleneindoline dissolved in 100 parts by weight of benzene and, after the dropwise addition of G parts by weight of phosphorus oxychloride, heated to the boiling point of benzene until the dye formation has ended.

   A water-soluble, basic, violet dye is obtained in this way, which is substantially more clear than the known basic violets and has good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Carbo- cyaninfarbstoffes, dadurch gekennzeichnet, dass man 1.3 .3-Trimethyl-5-metlioxy-indolin- 2-methylen-co-aldehyd mit 1.3.3-Trimethyl- 5-inetlioxy-2-methylenindolin in Gegenwart von Phosphoroxychlorid kondensiert. Der so erhältliche Farbstoff liefert klare violette Färbungen von guten Echtheitseigenschaften. PATENT CLAIM: A process for the preparation of a carbocyanine dye, characterized in that 1.3.3-trimethyl-5-metlioxy-indoline-2-methylene-co-aldehyde with 1.3.3-trimethyl-5-inetlioxy-2-methyleneindoline is present condensed by phosphorus oxychloride. The dye obtainable in this way gives clear violet dyeings with good fastness properties. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Reaktionskom ponenten in Benzol löst und Phosphoroxy- chlorid als Kondensationsmittel bei der Siede temperatur des Benzols einwirken lässt. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that the reaction components are dissolved in benzene and phosphorus oxychloride is allowed to act as a condensing agent at the boiling point of the benzene.
CH183901D 1933-05-16 1934-05-15 Process for the preparation of a carbocyanine dye. CH183901A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE183901X 1933-05-16
CH179452T 1934-05-15

Publications (1)

Publication Number Publication Date
CH183901A true CH183901A (en) 1936-04-30

Family

ID=25720304

Family Applications (1)

Application Number Title Priority Date Filing Date
CH183901D CH183901A (en) 1933-05-16 1934-05-15 Process for the preparation of a carbocyanine dye.

Country Status (1)

Country Link
CH (1) CH183901A (en)

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