CH187926A - Process for the preparation of the N.N'-diethoxyethyl-2.2'-dipyrazolanthrone. - Google Patents

Process for the preparation of the N.N'-diethoxyethyl-2.2'-dipyrazolanthrone.

Info

Publication number
CH187926A
CH187926A CH187926DA CH187926A CH 187926 A CH187926 A CH 187926A CH 187926D A CH187926D A CH 187926DA CH 187926 A CH187926 A CH 187926A
Authority
CH
Switzerland
Prior art keywords
diethoxyethyl
dipyrazolanthron
preparation
agent
dipyrazolanthrone
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 CH187926A publication Critical patent/CH187926A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/12—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • 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
    • C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
    • C09B5/02—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic ring being only condensed in peri position
    • C09B5/04—Pyrazolanthrones
    • C09B5/08—Dipyrazolanthrones

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum     Hauptpatent    Nr. 182402.    Verfahren zur Herstellung des N.     N'-Diäthoxyäthyl-2.        2'-dipyrazolanthrons.       Es wurde gefunden, dass ein N. N'  Diäthoxyäthyl-2.2'-dipyrazolanthron herge  stellt werden kann, wenn man auf 1     Mol     2 .     2'-Dipyrazolanthron    2     Mol    eines     ss-          Äthoxyäthylierungsmittels    zur     Einwirkung     bringt.  



  Das erhaltene N .     N'-Diäthoxyäthyl-2.        2'-          dipyrazolanthron    stellt ein     rotes    Pulver dar,  das sich in konzentrierter Schwefelsäure  orange löst. Es färbt Baumwolle aus     ,grün-          stichigblauer        Küpe    in sehr kräftigen roten  Tönen von sehr guten Echtheitseigenschaf  ten. Die Färbungen ändern beim Seifen nur  sehr wenig.  



  <I>Beispiel:</I>  10,5 Teile trockenes, fein pulverisiertes       Dikaliumsalz    des     2.2'-Dipyrazolanthrons     werden in 70 Teilen     Nitrobenzol        suspendiert.     Man gibt 14,7 Teile     p-Toluolsulfonsäure-          ester    des     Glykolmonoäthyläthers    zu und er  hitzt unter Rühren. Bei etwa 140,' tritt  Reaktion ein und die Farbe des     Gemisches     wechselt von Braun nach Rot. Man rührt  etwa 16 Stunden lang bei 150 bis<B>160'</B> und  lässt dann erkalten.

   Der gebildete Farbstoff  wird abgesaugt und so lange     abwechselnd       mit Alkohol und Wasser ausgekocht, bis die  Filtrate praktisch farblos ablaufen. Hierauf  wird getrocknet.



  <B> Additional patent </B> to main patent no. 182402. Process for the production of N.N'-diethoxyethyl-2. 2'-dipyrazole anthrones. It has been found that a N. N 'diethoxyethyl-2.2'-dipyrazolanthrone can be Herge provides if one mole of 2 2'-Dipyrazolanthron brings 2 moles of a ss- ethoxyethylating agent to action.



  The obtained N. N'-diethoxyethyl-2. 2'-dipyrazolanthron is a red powder that dissolves orange in concentrated sulfuric acid. It dyes cotton, greenish blue vat in very strong red tones with very good fastness properties. The colors change very little when soapy.



  <I> Example: </I> 10.5 parts of dry, finely powdered dipotassium salt of 2.2'-dipyrazole anthrone are suspended in 70 parts of nitrobenzene. 14.7 parts of p-toluenesulfonic acid ester of glycol monoethyl ether are added and it is heated with stirring. At about 140 ', a reaction occurs and the color of the mixture changes from brown to red. The mixture is stirred for about 16 hours at 150 to 160' and then allowed to cool.

   The dye formed is filtered off with suction and boiled alternately with alcohol and water until the filtrates run off practically colorless. It is then dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung des N. N'- Diäthoxyäthyl-2, . 2'-,dipyrazolanthrons, da durch gekennzeichnet, dass man auf 1 Mol 2 . 2' - Dipyrazolanthron 2 Mol eines ss Äthoxyäthylierungsmittels zur Einwirkung bringt. Das erhaltene N . N'-Diäthoxyäthyl-2 . 2'- dipyrazolanthron stellt ein rotes Pulver dar, das sich in konzentrierter Schwefelsäure orange löst. PATENT CLAIM: Process for the preparation of the N. N'-diethoxyethyl-2,. 2 '-, dipyrazolanthrons, characterized in that one mole of 2. 2 '- Dipyrazolanthron brings 2 mol of an ethoxyethylating agent to action. The obtained N. N'-diethoxyethyl-2. 2'-dipyrazolanthron is a red powder that dissolves orange in concentrated sulfuric acid. Es färbt Baumwolle aus grün stichigblauer Küpe in sehr kräftigen roten Tönen von sehr guten Echtheitseigenschaf ten. Die Färbungen ändern beim Seifen, nur sehr wenig. UNTERANSPRUCH: Verfahren gemäss Patentanspruch, da durch gekennzeichnet, dass als ss-Äthoxy- äthylierungsmittel ein Arylsulfonsäureester des Glykolmonoäthyläthers verwendet wird. It dyes cotton from a green, pungent blue vat in very strong red tones with very good fastness properties. The dyeings change very little when soapy. SUBClaim: Process according to patent claim, characterized in that an aryl sulfonic acid ester of glycol monoethyl ether is used as the β-ethoxy ethylating agent.
CH187926D 1935-03-08 1935-03-08 Process for the preparation of the N.N'-diethoxyethyl-2.2'-dipyrazolanthrone. CH187926A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH187926T 1935-03-08
CH182402T 1936-07-30

Publications (1)

Publication Number Publication Date
CH187926A true CH187926A (en) 1936-11-30

Family

ID=25720716

Family Applications (1)

Application Number Title Priority Date Filing Date
CH187926D CH187926A (en) 1935-03-08 1935-03-08 Process for the preparation of the N.N'-diethoxyethyl-2.2'-dipyrazolanthrone.

Country Status (1)

Country Link
CH (1) CH187926A (en)

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