CH128230A - Process for the preparation of an acid dye of the anthraquinone series. - Google Patents

Process for the preparation of an acid dye of the anthraquinone series.

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Publication number
CH128230A
CH128230A CH128230DA CH128230A CH 128230 A CH128230 A CH 128230A CH 128230D A CH128230D A CH 128230DA CH 128230 A CH128230 A CH 128230A
Authority
CH
Switzerland
Prior art keywords
preparation
acid dye
anthraquinone
anthraquinone series
dye
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 CH128230A publication Critical patent/CH128230A/en

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

Description

  

  Verfahren zur Darstellung eines     Säurefarbstoffes    der     Anthrachinonreilie.       Es wurde gefunden,     da.ss    das 1. 2     Thio-          morpholin-anthrachinon,    das     Grus    dem     1-          Aminoa-nthrachinon-2-tliiohydrin    erhältlich  ist, sehr leicht     sulfieren    lässt und hierbei  einen     \wertvollen    Säurefarbstoff liefert.  



  <I>Beispiel:</I>  50 Teile des aus 1.     2-Aminoanthrachinon-          ätlivjerithiohydrin    erhältlichen     Thiomorpho-          lins    werden mit 250 Teilen Schwefelsäure  66       B6    und 250 Teilen     Oleum    30     %ig    auf  130 bis 140   erhitzt, bis Wasserlöslichkeit       eingetreten    ist. Nach dem Eingiessen in  Wasser wird     filtriert,    mit Kochsalz neutral  gewaschen und getrocknet. Der neue Farb  stoff von folgender Formel:  
EMI0001.0020     
    färbt auf Wolle in saurem Bade in kräf  tigen rotbraunen Tönen.  



  Zur Darstellung dieses Säurefarbstoffes  kann man auch direkt von     1-Aminoantlira-          chinon-2-thiohydrin    ausgehen und dieses  mit so     hochprozentigem        Oleum    auf 130     bi#@     140   erhitzen, dass'     Ringschluss    und     Sulfie-          rung    in einem     Arbeitsgang    stattfinden.



  Process for the preparation of an acid dye of the anthraquinone line. It has been found that the 1,2-thio-morpholine-anthraquinone, which is obtainable from 1-amino-nthraquinone-2-thiiohydrin, can be sulfated very easily and thereby provides a valuable acid dye.



  <I> Example: </I> 50 parts of the thiomorpholine obtainable from 1. 2-aminoanthraquinone ätlivjerithiohydrin are heated with 250 parts of sulfuric acid 66 B6 and 250 parts of oleum 30% to 130 to 140 until water solubility has occurred. After pouring into water, it is filtered, washed neutral with sodium chloride and dried. The new dye with the following formula:
EMI0001.0020
    dyes on wool in an acid bath in strong red-brown tones.



  This acid dye can also be prepared directly from 1-aminoantliraquinone-2-thiohydrin and heated to 130 to 140 with such a high percentage of oleum that ring closure and sulfonation take place in one operation.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung von 1. 2-Thio- rriorpholinanthrachinon-3-sulfosäure, dadurch gekennzeichnet, dass man 1.2-Thiomorpholin- anthrachinon mit hochprozentigem Oleum auf<B>130</B> bis 140 erhitzt. Das Endprodukt, welches als Farbstoff Verwendung findet, färbt auf Wolle aus saurem Bade in kräftigen rotbraunen Tönen. Claim: Process for the preparation of 1. 2-thio-rriorpholine anthraquinone-3-sulfonic acid, characterized in that 1,2-thiomorpholine anthraquinone is heated to 130-140 with high percentage oleum. The end product, which is used as a dye, dyes wool from an acid bath in strong red-brown tones.
CH128230D 1925-12-23 1926-12-15 Process for the preparation of an acid dye of the anthraquinone series. CH128230A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE128230X 1925-12-23

Publications (1)

Publication Number Publication Date
CH128230A true CH128230A (en) 1928-10-16

Family

ID=5662456

Family Applications (1)

Application Number Title Priority Date Filing Date
CH128230D CH128230A (en) 1925-12-23 1926-12-15 Process for the preparation of an acid dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH128230A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656354A (en) * 1949-10-14 1953-10-20 Goodrich Co B F Preparation of heterocyclic sulfonic acids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656354A (en) * 1949-10-14 1953-10-20 Goodrich Co B F Preparation of heterocyclic sulfonic acids

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