CH176212A - Process for preparing a 1,8-naphthalenedicarboximide compound. - Google Patents

Process for preparing a 1,8-naphthalenedicarboximide compound.

Info

Publication number
CH176212A
CH176212A CH176212DA CH176212A CH 176212 A CH176212 A CH 176212A CH 176212D A CH176212D A CH 176212DA CH 176212 A CH176212 A CH 176212A
Authority
CH
Switzerland
Prior art keywords
compound
naphthalenedicarboximide
preparing
pressure vessel
naphthalenedicarboxylic acid
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 CH176212A publication Critical patent/CH176212A/en

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

Description

  

  Verfahren zur Darstellung einer     1.8-Naphthalindikarbonsäureiinidverbindung.       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Darstellung einer     1.8-          Naphthalindikarbonsäureimidverbindung,    da  durch gekennzeichnet, dass man     4-Sulfo-1.8-          naphthalindikarbonsäure    mit     Taurin    im Druck  gefäss bei erhöhter Temperatur behandelt.

    <I>Beispiel=</I>  Durch Erhitzen von     4-Sulfo-1.8-naph-          thalindikarbonsäure    mit einer 14     o/oigen        Tau-          rinlösung    in Gegenwart von etwas Natrium  sulfit bei etwa<B>1700</B> im Druckgefäss erhält  man das wasserlösliche     Sulfoäthylaminonaph-          thalsulfoäthylimid    von folgender Formel:  
EMI0001.0014     
    Diese Verbindung ist ein neuer Stoff, der  zur Herstellung von Farbstoffen verwendet  werden kann. Das Produkt zieht auf tierische  Faser und färbt diese     grünstichig    gelb.



  Process for the preparation of 1,8-naphthalenedicarboxylic acid imide compound. The present patent relates to a process for the preparation of a 1,8-naphthalenedicarboximide compound, characterized in that 4-sulfo-1,8-naphthalenedicarboxylic acid is treated with taurine in a pressure vessel at elevated temperature.

    <I> Example = </I> By heating 4-sulfo-1.8-naphthalene dicarboxylic acid with a 14% taurine solution in the presence of some sodium sulfite at about <B> 1700 </B> in the pressure vessel, one obtains the water-soluble sulfoäthylaminonaph- thalsulfoäthylimid of the following formula:
EMI0001.0014
    This compound is a new substance that can be used to make dyes. The product draws on animal fibers and turns them greenish yellow.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung einer 1.8- Naphthalindikarbonsäureirnidverbindung, da durch gekennzeichnet, dass man 4-Sulfo-1.8- naphthalindikarbonsäure mit Taurin im Druck gefäss bei erhöhter Temperatur behandelt. Das so erhaltene Produkt der Formel EMI0001.0021 zieht auf tierische Faser und färbt diese grünstichig gelb. PATENT CLAIM: Process for the preparation of a 1.8-naphthalenedicarboxylic acid imide compound, characterized in that 4-sulfo-1.8-naphthalenedicarboxylic acid is treated with taurine in a pressure vessel at elevated temperature. The product of the formula thus obtained EMI0001.0021 draws on animal fibers and turns them greenish yellow. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Reaktion mit einer 14 /oigen Taurinlösung in Gegenwart von etwas Natriumsulfit bei etwa 170 o im Druckgefäss bewirkt. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that the reaction is effected with a 14% taurine solution in the presence of some sodium sulfite at about 170 ° in a pressure vessel.
CH176212D 1932-03-24 1933-03-23 Process for preparing a 1,8-naphthalenedicarboximide compound. CH176212A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE176212X 1932-03-24
CH168138T 1933-03-23

Publications (1)

Publication Number Publication Date
CH176212A true CH176212A (en) 1935-03-31

Family

ID=25718506

Family Applications (1)

Application Number Title Priority Date Filing Date
CH176212D CH176212A (en) 1932-03-24 1933-03-23 Process for preparing a 1,8-naphthalenedicarboximide compound.

Country Status (1)

Country Link
CH (1) CH176212A (en)

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