AT43879B - Process for the preparation of sulfur-containing dyes of the anthracene series - Google Patents

Process for the preparation of sulfur-containing dyes of the anthracene series

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Publication number
AT43879B
AT43879B AT43879DA AT43879B AT 43879 B AT43879 B AT 43879B AT 43879D A AT43879D A AT 43879DA AT 43879 B AT43879 B AT 43879B
Authority
AT
Austria
Prior art keywords
sulfur
preparation
containing dyes
anthracene series
pyridine
Prior art date
Application number
Other languages
German (de)
Original Assignee
Farbenfab Vorm Bayer F & Co
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
Priority claimed from DE1908206536D external-priority patent/DE206536C/de
Application filed by Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT43879B publication Critical patent/AT43879B/en

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

Description

  

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 Aus Pyridin erhält man gelbliche Krystalle, deren Lösung in konzentrierter Schwefelsäure rot,   in Alkali violett rot ist. 



  Beispiel 3.   
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 daraus gewonnene Merkaptan   krystallisiert   aus Pyridin in dunkelblauen Nadeln, deren Lösung in Pyridin violett, in konzentrierter Schwefelsäure anfangs schmutzigbraun, dann violett ist. 



  Durch Sulfieren erhält man einen violetten   Wollfarbstofl.   



   Beispiel 4. 



   10 kg 1-Chlor-4-aminoanthrachinon (erhalten durch Reduktion des 1-Chlor-4-nitroanthrachinons) werden mit 150 kg Alkohol und 150 kg einer 28%igen natriumsulfhydratlösung 10 Stunden am Rückflusskühler gekocht. Beim Erkalten scheidet sich das   Natronsalz   des 4-Aminoanthrachinon-1-merkaptans krystallinisch ab und wird wie bekannt isoliert. In Wasser löst es sich mit blauer Farbe. Mit verdünnter Säure zerlegt und aus Pyridin   umkrystallisiert,   bildet es bronzeglänzende Nadeln, die sich in Pyridin violettrot, in konzentrierter   Schwefelsäure   orangegelb lösen.



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 Yellowish crystals are obtained from pyridine, the solution of which is red in concentrated sulfuric acid and purple-red in alkali.



  Example 3.
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 Mercaptan obtained from it crystallizes from pyridine in dark blue needles, the solution of which in pyridine is violet, in concentrated sulfuric acid initially dirty brown, then violet.



  Sulfation gives a purple wool dye.



   Example 4.



   10 kg of 1-chloro-4-aminoanthraquinone (obtained by reducing 1-chloro-4-nitroanthraquinone) are refluxed for 10 hours with 150 kg of alcohol and 150 kg of a 28% strength sodium sulfhydrate solution. On cooling, the sodium salt of 4-aminoanthraquinone-1-mercaptan separates out crystalline and is isolated as is known. It dissolves in water with a blue color. Disassembled with dilute acid and recrystallized from pyridine, it forms shiny bronze needles that dissolve violet-red in pyridine and orange-yellow in concentrated sulfuric acid.

Claims (1)

PATENT-ANSPRUCH : Abänderung des durch das Patent Nr. 41169 geschützten Verfahrens zur Darstellung von schwefelhaltigen Farbstufen der Anthrazenreihe, dadurch gekennzeichnet, dass man die Alkalipolysulfide durch die einfachen Schwefelalkalien ersetzt. PATENT CLAIM: Modification of the process protected by patent no. 41169 for the production of sulfur-containing color levels of the anthracene series, characterized in that the alkali polysulphides are replaced by the simple sulfur alkalis.
AT43879D 1908-01-28 1909-02-11 Process for the preparation of sulfur-containing dyes of the anthracene series AT43879B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1908206536D DE206536C (en) 1908-01-28

Publications (1)

Publication Number Publication Date
AT43879B true AT43879B (en) 1910-09-10

Family

ID=5793005

Family Applications (1)

Application Number Title Priority Date Filing Date
AT43879D AT43879B (en) 1908-01-28 1909-02-11 Process for the preparation of sulfur-containing dyes of the anthracene series

Country Status (1)

Country Link
AT (1) AT43879B (en)

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