CH106077A - Process for the production of a new intermediate product. - Google Patents

Process for the production of a new intermediate product.

Info

Publication number
CH106077A
CH106077A CH106077DA CH106077A CH 106077 A CH106077 A CH 106077A CH 106077D A CH106077D A CH 106077DA CH 106077 A CH106077 A CH 106077A
Authority
CH
Switzerland
Prior art keywords
sulfonic acid
production
cyanuric chloride
intermediate product
new intermediate
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH106077A publication Critical patent/CH106077A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
    • C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
    • C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
    • C07D251/40—Nitrogen atoms
    • C07D251/48—Two nitrogen atoms
    • C07D251/50—Two nitrogen atoms with a halogen atom attached to the third ring carbon atom

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines neuen Zwischenproduktes.    Es wurde gefunden, dass man ein neues       Zwischenprodukt,    das sekundäre Kondensa  tionsprodukt von einem     Mol.        Cyanurcblorid     mit zwei     Mol.        2.5-Aminon.aphthol-7-sulfo-          säure,    erhält, wenn man auf ein     Mol.        Cyanür-          chloiid    zwei     Mol.        2.5-Aminon:aphthol-7-          sulfosäure    einwirken lässt.  



  Diese Kondensation wird durch Zusam  menrühren der Komponenten in einem geeig  neten Verdünnungsmittel durchgeführt, und  es wurde gefunden, dass als solches Wasser  in überraschender Weise sehr     gut    geeignet ist.  Das sekundäre Kondensationsprodukt aus  einem     Mol.        Cy.anurchlorid    mit zwei     Mol.    2 .     5-          Aminonaphthol-7-sulfosäure    bildet ein in  Wasser leicht lösliches,     kristallinisches,    fast  farbloses Pulver. Es enthält noch ein reak  tionsfähiges Chloratom und stellt ein wert  volles     Ausgangsmaterial    zur Herstellung von  Farbstoffen dar.  



       Beispiel:     Eine fein verteilte     Aufschlemmung    von  18,5 Teilen     Cyanurchlorid    in 1000 Teilen       Wasser    wird mit Salzsäure schwach sauer ge  stellt und nach und nach bei 0   unter Rüh-         ren    mit einer     Lösung    von<B>26,2</B> Teilen 2.     5-          aminonaphthol-7-sulfosaurem    Natrium in 500  Teilen Wasser versetzt, wobei man durch  Zugabe von Sololösung (im ganzen 5,3 Teile)  die Reaktion     immer    schwach sauer hält.

   Die  so erhaltene klare Lösung wird in der Kälte  mit Soda neutralisiert und wiederum mit einer       weiteren    Lösung von<B>26,2</B> Teilen des     Natron-          salzes    der     2.5-Aminonaphthol-7-sulfosäure     versetzt. Man rührt, bis die     Aminonaphthol-          sulfosäure    beinahe verschwunden ist, und iso  liert das sekundäre Kondensationsprodukt aus  einem     Mol.        Cyanurchlorid    und zwei     Mol.    2 .     5-          Aminonaphthol-7-sulfosäure    durch Ansäuern,       Aussalzen    und Filtrieren.



  Process for the production of a new intermediate product. It has been found that a new intermediate product, the secondary condensation product of one mole of cyanuric chloride with two moles of 2.5-aminonaphthol-7-sulfonic acid, is obtained if two moles of 2.5 -Aminon: aphthol-7- sulfonic acid can act.



  This condensation is carried out by stirring the components together in a suitable diluent, and it has been found that, surprisingly, water is very suitable as such. The secondary condensation product of one mole of cy.anuric chloride with two moles of 2. 5- Aminonaphthol-7-sulfonic acid forms a crystalline, almost colorless powder that is easily soluble in water. It still contains a reactive chlorine atom and is a valuable starting material for the production of dyes.



       Example: A finely divided slurry of 18.5 parts of cyanuric chloride in 1000 parts of water is made slightly acidic with hydrochloric acid and gradually at 0 with stirring with a solution of 26.2 parts 2. 5- aminonaphthol-7-sulphonic acid sodium in 500 parts of water is added, whereby the reaction is always kept slightly acidic by adding solo solution (total of 5.3 parts).

   The clear solution obtained in this way is neutralized in the cold with soda, and a further solution of 26.2 parts of the sodium salt of 2,5-aminonaphthol-7-sulfonic acid is added. The mixture is stirred until the aminonaphthol sulfonic acid has almost disappeared, and the secondary condensation product is isolated from one mole of cyanuric chloride and two moles of 2. 5- aminonaphthol-7-sulfonic acid by acidification, salting out and filtering.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Zwischenproduktes, des sekundären Konden sationsproduktes von einem Mol. Cyanur- chlorid mit zwei Mol. 2. 5-Aminonaphthol- 7-sulfosäure, dadurch gekennzeichnet, dass man .auf ein Mol. Cyanurchlorid zwei Mol. 2. 5-A@minonaphthol-7-sulfosäure einwirken lässt. PATENT CLAIM: Process for the preparation of a new intermediate product, the secondary condensation product of one mole of cyanuric chloride with two moles of 2. 5-aminonaphthol-7-sulfonic acid, characterized in that one mole of cyanuric chloride has two moles. 5-A @ minonaphthol-7-sulfonic acid can act. Das sel,:undäre Kondensationsprodukt aus einem Hol. Cyanurehlorid und zwei 112o1. ? . 5- _A,minonaphthol-7-sulfosäure bildet ein in Wasser leicht lösliches, kristallinisches, fast farbloses Pulver. Es enthält noch ein reak- tionsfähiges Chloratom und stellt ein wert volles Ausgangsmaterial zur Herstellung von Farbstoffen dar. The same: undary condensation product from a hol Cyanuric chloride and two 112o1. ? . 5- _A, minonaphthol-7-sulfonic acid forms a crystalline, almost colorless powder that is easily soluble in water. It still contains a reactive chlorine atom and is a valuable starting material for the production of dyes.
CH106077D 1922-09-07 1922-09-07 Process for the production of a new intermediate product. CH106077A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH103430T 1922-09-07
CH106077T 1922-09-07

Publications (1)

Publication Number Publication Date
CH106077A true CH106077A (en) 1924-08-01

Family

ID=25706376

Family Applications (1)

Application Number Title Priority Date Filing Date
CH106077D CH106077A (en) 1922-09-07 1922-09-07 Process for the production of a new intermediate product.

Country Status (1)

Country Link
CH (1) CH106077A (en)

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