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CH209082A - Process for the preparation of an o-oxyazo dye. - Google Patents

Process for the preparation of an o-oxyazo dye.

Info

Publication number
CH209082A
CH209082A CH209082DA CH209082A CH 209082 A CH209082 A CH 209082A CH 209082D A CH209082D A CH 209082DA CH 209082 A CH209082 A CH 209082A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
oxyazo
carboxylic acid
parts
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 CH209082A publication Critical patent/CH209082A/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)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines     o-Ogyazofarbstoffes.       Nach dem im Hauptpatent     beschriebenen     Verfahren erhält man einen Wolle in roten  Tönen von guten Echtheitseigenschaften fär  benden     o-Oxyazofarbstoff,    wenn     nran    diano  tierte     2-Arninobenzol-l.-car-bonsäure-5-sulfon-          säure    mit     2-Oxyriaphthalin-6-carborrsärrre-n-          propylester    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man einen     o-Oxyazofarbstoff    von ähnlichen  Eigenschaften, wenn man dianotierte     2-Amino-          berrzol-l-carborrsäure-4-sulforrsäure    mit     2-Oxy-          naphthalin.6-carbonsäure-isobrrtylester    kup  pelt.  



  <I>Beispiel:</I>  Zu einer Lösung von 25 Teilen     2-Oxy-          naphthalirr-6-carbonsäure-isobutylester-,    6 Tei  len     Natriumhydroxyd    und 15 Teilen     Natrium-          carbonat    in etwa 800 Teilen Wasser wird  bei 0   eine aus 21,7 Teilen     2-Aminobenzol-          1-carbonsäure-4-sulfonsäure,    6,9 Teilen Na-         triumnitrit    und 10 Teilen Salzsäure von  12       Be    in etwa 300 Teilen Wasser herge  stellte     Diazoverbindung    gegeben. Nach be  endeter Kombination wird der gebildete Farb  stoff isoliert und getrocknet.

   Wolle wird  nach dem     Chromierungsverfahren    in roten  Tönen von guten Echtheitseigenschaften an  gefärbt.



  Process for the preparation of an o-ogyazo dye. According to the process described in the main patent, o-oxyazo dye which dyes wool in red shades of good fastness properties, if nran diano-tated 2-aminobenzene-l-carboxylic acid-5-sulfonic acid with 2-oxyriaphthalene-6-carborrsärrre -n- propyl ester couples.



  As has now also been found, an o-oxyazo dye with similar properties is obtained if dianotated 2-amino-berrzene-1-carboric acid-4-sulforric acid is coupled with 2-oxynaphthalene-6-carboxylic acid isobrylate.



  <I> Example: </I> To a solution of 25 parts of 2-oxynaphthalir-6-carboxylic acid isobutyl ester, 6 parts of sodium hydroxide and 15 parts of sodium carbonate in about 800 parts of water, one of 21, 7 parts of 2-aminobenzene-1-carboxylic acid-4-sulfonic acid, 6.9 parts of sodium nitrite and 10 parts of hydrochloric acid of 12 Be in about 300 parts of water produced diazo compound were added. After the combination has ended, the dye formed is isolated and dried.

   Wool is dyed using the chroming process in red shades with good fastness properties.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines o-Oxy- azofarbstoffes, dadurch gekennzeichnet, dass man dianotierte 2-Aminobenzol-l-carbonsäure- 4-sulfonsäure mit 2-Oxynaphthalin-6-carbon- säure-isobutylester kuppelt. Der so erhaltene Farbstoff färbt Wolle nach dem Chromierungsverfahren in roten Tönen von guten Echtheitseigenschaften. - PATENT CLAIM Process for the preparation of an o-oxy azo dye, characterized in that dianotated 2-aminobenzene-1-carboxylic acid-4-sulfonic acid is coupled with 2-oxynaphthalene-6-carboxylic acid isobutyl ester. The dye obtained in this way dyes wool in red shades with good fastness properties using the chromating process. -
CH209082D 1937-01-13 1937-10-19 Process for the preparation of an o-oxyazo dye. CH209082A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE209082X 1937-01-13
CH201623T 1937-10-19

Publications (1)

Publication Number Publication Date
CH209082A true CH209082A (en) 1940-03-15

Family

ID=25723730

Family Applications (1)

Application Number Title Priority Date Filing Date
CH209082D CH209082A (en) 1937-01-13 1937-10-19 Process for the preparation of an o-oxyazo dye.

Country Status (1)

Country Link
CH (1) CH209082A (en)

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