CH119371A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH119371A
CH119371A CH119371DA CH119371A CH 119371 A CH119371 A CH 119371A CH 119371D A CH119371D A CH 119371DA CH 119371 A CH119371 A CH 119371A
Authority
CH
Switzerland
Prior art keywords
new dye
production
acid
parts
new
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 CH119371A publication Critical patent/CH119371A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur     Herstellung    eines neuen     Farbstoffes.            Es    wurde gefunden, dass man einen       neuen        Farbstoff    erhält, wenn man die  jenige.     Phenylbarbitursäure,    welche aus       Phenylharnstoff    und     Malonester    erhalten       ,vird,    mit der nitrierten     Diazoverbindung    der       1.-Amino-2-oxynaphthalin-4-sulfosäure    kup  pelt und das so erhaltene Produkt mit       Chromformiat    behandelt.

   Der neue Farb  stoff bildet ein braunes Pulver, löst sich in       verdünnter        Sololösung    mit braunroter Farbe  und erzeugt auf Wolle, aus saurem Bade ge  färbt, echte rotbraune Töne.  



       Beispiel:     250 \feile der nitrierten     Diazoverbindung     der     1-Amino-2-oxynaphthalin-4-sulfosäure     werden in ein Gemisch von 214 Teilen     Phe-          nylbarbitursäure,        133    Teilen 30     %iger    Na  tronlauge, 170 Teilen     Sodan    und 1500 Tei  len Wasser eingetragen. Die Kupplung setzt  sofort ein; zu ihrer Vervollständigung rührt  man noch einige Zeit. Der gebildete Farb  stoff wird dann filtriert und getrocknet.  



       .17,5    Teile dieses Farbstoffes werden in       E;50--Tei    kochendem Wasser gelöst und    mit einer     Chromformiatlösung,    entsprechend  15,2 Teilen     Cr:03,    versetzt. Man kocht meh  rere Stunden am     Rückflusskühler,    dampft  teilweise ein und gewinnt die neue Chrom  verbindung durch Nitrieren, gegebenenfalls  unter vorherigem     Aussalzen.  



  Process for the production of a new dye. It has been found that you get a new dye by using that one. Phenylbarbituric acid, which is obtained from phenylurea and malonic ester, is coupled with the nitrated diazo compound of 1.-amino-2-oxynaphthalene-4-sulfonic acid and the product thus obtained is treated with chromium formate.

   The new dye forms a brown powder, dissolves in a dilute solo solution with a brownish-red color and creates real red-brown tones on wool dyed from an acidic bath.



       Example: 250 \ files of the nitrated diazo compound of 1-amino-2-oxynaphthalene-4-sulfonic acid are added to a mixture of 214 parts of phenylbarbituric acid, 133 parts of 30% sodium hydroxide solution, 170 parts of sodane and 1500 parts of water. The clutch works immediately; stir for a while to complete them. The color formed is then filtered and dried.



       17.5 parts of this dye are dissolved in E; 50 parts of boiling water and a chromium formate solution corresponding to 15.2 parts Cr: 03 is added. It is boiled for several hours on the reflux condenser, partially evaporated and the new chromium compound is obtained by nitration, if necessary with prior salting out.

Claims (1)

PATENTANSPRUCI3 Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man diejenige Phenylbarbitursäure, welche aus Phenylharnstoff und Malonester erhal ten wird, mit der nitrierten Diazover- bindung der 1-Amino-2-oxynaphthalin-4- sulfosäure kuppelt und das so erhaltene Produkt mit Chromformiat behandelt. PATENT claims Process for the production of a new dye, characterized in that the phenylbarbituric acid which is obtained from phenylurea and malonic ester is coupled with the nitrated diazo compound of the 1-amino-2-oxynaphthalene-4-sulfonic acid and the product thus obtained with Chromium formate treated. Der neue Farbstoff bildet ein braunes Pulver, löst sich in verdünnter Sodalösung mit braunroter Farbe und erzeugt auf Wolle, aus saurem Bade gefärbt, echte rotbraune Töne. The new dye forms a brown powder, dissolves in a dilute soda solution with a brownish-red color and produces real red-brown tones on wool dyed from an acid bath.
CH119371D 1924-12-24 1924-12-24 Process for the production of a new dye. CH119371A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH119371T 1924-12-24
CH114283T 1924-12-24

Publications (1)

Publication Number Publication Date
CH119371A true CH119371A (en) 1927-03-16

Family

ID=25708298

Family Applications (1)

Application Number Title Priority Date Filing Date
CH119371D CH119371A (en) 1924-12-24 1924-12-24 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH119371A (en)

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