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CH204437A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH204437A
CH204437A CH204437DA CH204437A CH 204437 A CH204437 A CH 204437A CH 204437D A CH204437D A CH 204437DA CH 204437 A CH204437 A CH 204437A
Authority
CH
Switzerland
Prior art keywords
azo dye
dye
production
new
amino
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 CH204437A publication Critical patent/CH204437A/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
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
    • C09B43/124—Preparation of azo dyes from other azo compounds by acylation of amino groups with monocarboxylic acids, carbamic esters or halides, mono- isocyanates, or haloformic acid esters
    • C09B43/128—Aliphatic, cycloaliphatic or araliphatic acids

Landscapes

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

Description

       

      Zusatzpatent    zum Hauptpatent Nr. 200368.    Verfahren zur Herstellung eines neuen     Azofarbstob%s.       Es wurde gefunden, dass man einen neuen       Azofarbstoff    erhält, wenn man den     Mono-          azofarbstoff    aus     diazotiertem    1 -     Amino    - 4     -          cinnamoylaminobenzol    und     2-Amino-8-oxy-          naphthalin-6-sulfonsäure    in Gegenwart einer  tertiären Base und mit 2     Mol        Benzoesäure-          3-sulfochlorid    behandelt.

   Der neue Farbstoff  bildet ein braunes Pulver; er färbt Baum  wolle aus     natriumcarbonathaltigem    Bade rot.  Er stellt ein zweimal     sulfobenzoyliertes    De  rivat des Ausgangsfarbstoffes dar.    <I>Beispiel:</I>    10 Teile des     Azofarbstoffes    aus     diazo-          tiertem        1-Amino-4-cinnamoylaminobenzol    und       2-Amino-8-oxynaphthalin-6-sulfonsäure    (al  kalisch gekuppelt) werden in 100 Teilen       Pyridin    mit 17,6 Teilen     Benzoesäure-3-sulfo-          ehlorid    während 3 bis 4 Stunden bei<B>100'</B>  erhitzt.  



  Hierauf wird das     Pyridin    im Vakuum ab  destilliert, der Rückstand im Wasser gelöst    und mit verdünnter     Natriumkarbonatlösimg     neutralisiert. Das Reaktionsprodukt wird mit       Natriumchlorid        ausgesalzen,    abgesaugt     und     getrocknet. Der neue Farbstoff stellt ein  braunes     Pulver    dar, das Baumwolle rot an  färbt.



      Additional patent to main patent No. 200368. Process for the production of a new azo dye% s. It has been found that a new azo dye is obtained when the mono azo dye is obtained from diazotized 1 - amino - 4 - cinnamoylaminobenzene and 2-amino-8-oxynaphthalene-6-sulfonic acid in the presence of a tertiary base and with 2 moles of benzoic acid - 3-sulfochloride treated.

   The new dye forms a brown powder; he dyes cotton made from bath containing sodium carbonate red. It is a twice sulfobenzoylated derivative of the starting dye. <I> Example: </I> 10 parts of the azo dye from diazo- tated 1-amino-4-cinnamoylaminobenzene and 2-amino-8-oxynaphthalene-6-sulfonic acid (alkaline coupled) are heated in 100 parts of pyridine with 17.6 parts of benzoic acid 3-sulfo-ehlorid for 3 to 4 hours at <B> 100 '</B>.



  The pyridine is then distilled off in vacuo, the residue is dissolved in water and neutralized with dilute sodium carbonate solution. The reaction product is salted out with sodium chloride, filtered off with suction and dried. The new dye is a brown powder that turns cotton red.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man den Azofarbstoff aus diazotiertem 1- Amino - 4 - cinnamoylaminobenzol und 2- Amino-8-oxynaphthalin-6-sulfonsäure in Ge genwart einer tertiären Base und mit 2 Mol Benzoesäure-3-sulfochlorid behandelt. Der neue Farbstoff bildet ein braunes Pulver, das Baumwolle aus natriumcarbonat- haltigem Bade rot anfärbt. PATENT CLAIM: Process for the production of a new azo dye, characterized in that the azo dye from diazotized 1- amino-4-cinnamoylaminobenzene and 2- amino-8-oxynaphthalene-6-sulfonic acid in the presence of a tertiary base and with 2 mol of benzoic acid-3 -sulfochloride treated. The new dye forms a brown powder that turns cotton from bath containing sodium carbonate red. Er stellt ein zwei mal sulfobenzoyliertes Derivat des Ausgangs farbstoffes dar. It is a twice sulfobenzoylated derivative of the starting dye.
CH204437D 1936-12-16 1936-12-16 Process for the production of a new azo dye. CH204437A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH204437T 1936-12-16
CH200368T 1936-12-16

Publications (1)

Publication Number Publication Date
CH204437A true CH204437A (en) 1939-04-30

Family

ID=25723466

Family Applications (1)

Application Number Title Priority Date Filing Date
CH204437D CH204437A (en) 1936-12-16 1936-12-16 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH204437A (en)

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