CH227297A - Process for the preparation of a leuco sulfuric acid ester of a vat dye. - Google Patents

Process for the preparation of a leuco sulfuric acid ester of a vat dye.

Info

Publication number
CH227297A
CH227297A CH227297DA CH227297A CH 227297 A CH227297 A CH 227297A CH 227297D A CH227297D A CH 227297DA CH 227297 A CH227297 A CH 227297A
Authority
CH
Switzerland
Prior art keywords
sulfuric acid
acid ester
vat dye
leuco
preparation
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 CH227297A publication Critical patent/CH227297A/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
    • C09B9/00—Esters or ester-salts of leuco compounds of vat dyestuffs
    • C09B9/02—Esters or ester-salts of leuco compounds of vat dyestuffs of anthracene dyes

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 222800.    Verfahren zur Herstellung eines     Leukoschwefelsäureesters    eines     Küpenfarbstoffes.            Vorliegendes    Patent bezieht sich auf ein  Verfahren     zurHerstellung    eines     Leukoschwefel-          säureesters    eines     Küpenfarbstoffes,    dadurch  gekennzeichnet, dass man den gemäss Beispiel 7  der deutschen Patentschrift Nr.

   533500 aus  5-     (Bzi    -     Benzanthronylamino-)        1.2'-dianthrimid     durch Einwirkung von     alkalischen    Mitteln  erhältlichen     Küpenfarbstoff    mit metallischem  Kupfer und einem Gemisch aus einem     ver-          esternd    wirkenden Abkömmling der Schwefel  säure und     Pyridinhomologen    behandelt.  



  Der so erhaltene     Leukoschwefelsäureester     löst sich in Wasser mit olivgrüner Farbe und  ergibt     rotstichig    graue Färbungen, welche in  Farbton und Echtheitseigenschaften den mit  dem zugrunde     liegenden        Küpenfarbstoff    er  haltenen völlig gleichen.  



  <I>Beispiel:</I>  Zu einem Gemisch von 200 Teilen tech  nischen     Pyridinhomologen    vom Siedebereich    123-128   C und 40 Teilen     Chlorsulfonsäure     gibt man bei     etwa   <B>20-30'</B> C ein Gemisch  aus 20 Teilen des nach Beispiel 7 der deut  schen Patentschrift Nr.

   533500 erhaltenen und  fein gemahlenen     güpenfarbstofEes    und 20 Tei  len     Kupferpulver.    Man     rührt    etwa 3 Stunden  bei etwa 40   C, kühlt dann ab und giesst das       Veresterungsgemisch    in etwa 1000 Teile Eis  wasser ein, wobei sich das komplexe     Kupfer-          pyridinsalz    des     Leukoschwefelsäureesters    als  zähflüssige Masse ausscheidet.

   Man führt es  nach Abgiessen der     darüberstehenden    Flüssig  keit durch etwa einstündiges Rühren mit etwa  50 Teilen Natronlauge 40       B6        in    etwa 1500  Teilen Wasser bei etwa<B>601</B> C in das Natrium  salz des     Leukoschwefelsäureesters    über, saugt  von Kupferrückständen ab und engt das Fil  trat im Vakuum auf etwa 500     Teile    ein. Durch  Zugabe von     etwa    100 Teilen     Chlorkalium     wird das     Leukoschwefelsäureester-Kaliumsalz     ausgefällt, durch Absaugen     isoliert    und auf  Paste oder Pulver verarbeitet.



      Additional patent to main patent No. 222800. Process for the production of a leuco-sulfuric acid ester of a vat dye. The present patent relates to a process for the preparation of a leuco-sulfuric acid ester of a vat dye, characterized in that the according to Example 7 of German Patent No.

   533500 treated from 5- (Bzi - Benzanthronylamino-) 1.2'-dianthrimide available through the action of alkaline agents with metallic copper and a mixture of an esterifying derivative of sulfuric acid and pyridine homologues.



  The leuco sulfuric acid ester obtained in this way dissolves in water with an olive green color and gives reddish-tinged gray colorations which are completely the same as those obtained with the underlying vat dye in terms of hue and fastness properties.



  <I> Example: </I> To a mixture of 200 parts of technical pyridine homologues with a boiling range of 123-128 C and 40 parts of chlorosulfonic acid, a mixture of 20 parts of the is added at about <B> 20-30 '</B> C according to Example 7 of the German patent specification No.

   533500 obtained and finely ground liquid dyes and 20 parts of copper powder. The mixture is stirred for about 3 hours at about 40 ° C., then cooled and the esterification mixture is poured into about 1000 parts of ice water, the complex copper pyridine salt of the leuco sulfuric acid ester separating out as a viscous mass.

   After the liquid above has been poured off, it is transferred into the sodium salt of the leuco-sulfuric acid ester by stirring for about one hour with about 50 parts of 40 B6 sodium hydroxide solution in about 1500 parts of water at about 601 ° C., copper residues are suctioned off and concentrated the fil entered about 500 parts in vacuo. The leuco-sulfuric acid ester potassium salt is precipitated by adding about 100 parts of potassium chloride, isolated by suction and processed into paste or powder.

Claims (1)

PATENTANSPRUCH: Verfahren zur Verstellung eines Leuko- schwefelsäureesters eines Küpenfarbstoffes, dadurch gekennzeichnet, dass man den ge mäss Beispiel 7 der deutschen Patentschrift Nr. 533500 aus 5-(Bzi-Beiizanthronyl.amino-) 1.?-diantlirimid durch Einwirkung von alka lischen Mitteln erhältlichen Küpenfarbstoft mit metallischem Kupfer und einem Gemisch aus einem veresternd wirkenden Abkömmling der Schwefelsäure und Py ridinhomologen be handelt. PATENT CLAIM: A process for adjusting a leuco-sulfuric acid ester of a vat dye, characterized in that the ge according to Example 7 of German Patent No. 533500 from 5- (Bzi-Beiizanthronyl.amino-) 1.? -Diantlirimid by the action of alkaline agents available vat dye with metallic copper and a mixture of an esterifying derivative of sulfuric acid and pyridine homologues. Der so erhaltene Leukoschwefelsäureester löst sich in Wasser mit olivgrüner Farbe und ergibt rotstickig graue Färbungen, welche in Farbton und Echtheitseigenschaften den mit dein zugrunde liegenden Küpenfarbstoff er- lialtenen völlig gleichen. The leuco-sulfuric acid ester obtained in this way dissolves in water with an olive-green color and produces reddish-gray gray colorations which, in terms of color tone and fastness properties, are completely similar to those obtained with the vat dye on which it is based.
CH227297D 1940-09-26 1941-08-20 Process for the preparation of a leuco sulfuric acid ester of a vat dye. CH227297A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE260940X 1940-09-26
DE160141X 1941-01-16
CH222800T 1941-08-20

Publications (1)

Publication Number Publication Date
CH227297A true CH227297A (en) 1943-05-31

Family

ID=27177938

Family Applications (2)

Application Number Title Priority Date Filing Date
CH227296D CH227296A (en) 1940-09-26 1941-08-20 Process for the preparation of a leuco sulfuric acid ester of a vat dye.
CH227297D CH227297A (en) 1940-09-26 1941-08-20 Process for the preparation of a leuco sulfuric acid ester of a vat dye.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH227296D CH227296A (en) 1940-09-26 1941-08-20 Process for the preparation of a leuco sulfuric acid ester of a vat dye.

Country Status (1)

Country Link
CH (2) CH227296A (en)

Also Published As

Publication number Publication date
CH227296A (en) 1943-05-31

Similar Documents

Publication Publication Date Title
CH227297A (en) Process for the preparation of a leuco sulfuric acid ester of a vat dye.
DE744219C (en) Process for the production of acidic dyes of the anthraquinone series
DE626430C (en) Process for the production of metal-containing azo dyes
DE514518C (en) Process for the preparation of Kuepen dyes of the anthraquinone series
DE744218C (en) Process for the production of acidic dyes of the anthraquinone series
DE743244C (en) Process for the preparation of leuco-sulfuric acid esters of Kuepen dyes
DE568034C (en) Process for the production of condensation products
DE686054C (en) Process for the preparation of dyes of the phthalocyanine series
DE742764C (en) Process for the preparation of water-soluble monoazo dyes
DE737348C (en) Process for the preparation of leuco-sulfuric acid esters of Kuepen dyes
DE517444C (en) Process for the preparation of sulphurous Kuepen dyes
DE734044C (en) Process for the preparation of acidic anthraquinone dyes
DE436534C (en) Process for the preparation of dyes of the dibenzanthrone series
AT213521B (en) Process for the preparation of new disazo dyes
DE564770C (en) Process for the production of ester derivatives from Kuepen dyes
DE890555C (en) Process for the preparation of a leuco sulfuric acid ester of the naphthothiophenindolindigo series
AT159305B (en) Process for the production of vat dyes of the pyrene series.
DE632377C (en) Process for the production of an anthraquinone dye
CH263500A (en) Process for the preparation of an azo dye.
CH298754A (en) Process for the production of an acidic wool dye.
CH283640A (en) Process for the production of a new copper-containing azo dye.
CH226630A (en) Process for the preparation of the leuco-sulfuric acid ester of a vat dye of the anthraquinone series.
CH309444A (en) Process for the preparation of a water-soluble and licensing azophthalocyanine dye.
CH222800A (en) Process for the preparation of a leuco sulfuric acid ester of a vat dye.
DE1028716B (en) Process for the production of copper-containing trisazo dyes