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.Info
- 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
Links
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring (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)
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)
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 |
-
1926
- 1926-12-15 CH CH128230D patent/CH128230A/en unknown
Cited By (1)
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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