CH184486A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH184486A
CH184486A CH184486DA CH184486A CH 184486 A CH184486 A CH 184486A CH 184486D A CH184486D A CH 184486DA CH 184486 A CH184486 A CH 184486A
Authority
CH
Switzerland
Prior art keywords
new
ethoxy
preparation
good
azo dye
Prior art date
Application number
Other languages
German (de)
Inventor
A-G J R Geigy
Original Assignee
Geigy Ag J R
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 Geigy Ag J R filed Critical Geigy Ag J R
Publication of CH184486A publication Critical patent/CH184486A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/02—Monoazo dyes prepared by diazotising and coupling from diazotised o-amino-hydroxy compounds

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

Description

  

      Zusatzpatent    zum     Hauptpatent    Nr. 180692.    Verfahren zur     Darstellung    eines     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       Azofarbstoff    von wertvollen Eigenschaften er  hält, wenn man dianotiertes     5-Nitro-2-arnino-          1-phenol    mit     3-Ätboxy-l-äthyl-dioxypropyl-          aminobenzol,    wie es erhalten werden kann  durch Kondensation von     3-Äthoxy-l-äthyl-          aminobenzol    mit     a-Chlordioxypropan,    vereinigt.  



  Der neue Farbstoff ist ein in Wasser  unlösliches, dunkelgrünes, metallglänzendes  Pulver, das in Aceton blaustichig rosa und  in konzentrierter Schwefelsäure mit roter  Farbe löslich ist. Er färbt     Acetatseide    nach  üblichem Verfahren auf Grund seines guten  Ziehvermögens und seiner hervorragenden  Löslichkeit in kräftigen     blausticbigen        Ross-          tönen,    die sich durch ihre grosse Reinheit und  Schönheit auszeichnen. Die Färbungen zeigen  gute Echtheitseigenschaften und sind rein weiss       ätzbar.    Das neue Produkt ist auch ein gutes  Färbemittel für Lacke.

      <I>Beispiel:</I>    15,4 Teile     5-Nitro-2-amirro-l-phenol    werden  mit 300 Teilen Wasser vermahlen; die er  lralterie Suspension wird mit 25 Teilen kon  zentrierter Salzsäure und 7 Teilen     Natrium-          nitrit    dianotiert und nie so bereitete Diazo-         lösung    mit einer Lösung von 23,9 Teilen     3-          Äthoxy-l-äthyl-dioxypropylarninobenzol    in  verdünnter Salzsäure vereinigt. Der nach  längerem Rühren ausgeschiedene Farbstoff  wird filtriert und gewaschen.



      Additional patent to main patent No. 180692. Process for the preparation of an azo dye. It has been found that a new azo dye of valuable properties is obtained if you dianotated 5-nitro-2-arnino-1-phenol with 3-Ätboxy-1-ethyl-dioxypropyl-aminobenzene, as can be obtained by condensation of 3-Ethoxy-1-ethyl aminobenzene with a-chlorodioxypropane, combined.



  The new dye is a water-insoluble, dark green, metal-shimmering powder, which is soluble in acetone with a bluish pink tint and in concentrated sulfuric acid with a red color. Due to its good drawability and its excellent solubility, it dyes acetate silk according to the usual methods in strong blue-rustic rushes, which are characterized by their great purity and beauty. The dyeings show good fastness properties and can be etched in pure white. The new product is also a good colorant for paints.

      <I> Example: </I> 15.4 parts of 5-nitro-2-amirro-1-phenol are ground with 300 parts of water; The original suspension is dianotized with 25 parts of concentrated hydrochloric acid and 7 parts of sodium nitrite, and the diazo solution never prepared is combined with a solution of 23.9 parts of 3-ethoxy-1-ethyl-dioxypropyl aminobenzene in dilute hydrochloric acid. The dye which separates out after prolonged stirring is filtered and washed.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man dianotiertes 5-Nitro-2-amino-l-phenol mit 3-Äthoxy - 1- äthyl - dioxypropylaminobenzol, wie es erhalten werden kann durch Konden sation von 3-Äthoxy-l-äthylaminobenzol mit a-Chlordioxypropan, vereinigt. Der neue Farb stoff ist ein in Wasser unlösliches, dunkel grünes, metallglänzendes Pulver, das in Aceton blaustichig rosa und in konzentrierter Schwefel säure mit roter Farbe löslich ist. PATENT CLAIM: Process for the preparation of a new azo dye, characterized in that dianotated 5-nitro-2-amino-l-phenol with 3-ethoxy - 1- ethyl - dioxypropylaminobenzene, as it can be obtained by condensation of 3-ethoxy l-ethylaminobenzene with a-chlorodioxypropane, combined. The new dye is a dark green, metal-shimmering powder that is insoluble in water, which is soluble in acetone with a bluish pink color and in concentrated sulfuric acid with a red color. Er färbt Acetatseide nach üblichem Verfahren auf Grund seines guten Ziehvermögens und seiner her vorragenden Löslichkeit in kräftigen blau stichigen Rosstönen, die sich durch ihre grosse Reinheit und Schönheit auszeichnen. Die Färbungen -zeigen gute Echtheitseigenschaften und sind rein weiss ätzbar. Das neue Produkt ist auch ein gutes Färbemittel für Lacke. He dyes acetate silk according to the usual methods due to its good drawability and its excellent solubility in strong blue-tinged pink tones, which are characterized by their great purity and beauty. The dyeings show good fastness properties and can be etched in pure white. The new product is also a good colorant for paints.
CH184486D 1935-02-15 1935-02-15 Process for the preparation of an azo dye. CH184486A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH180692T 1935-02-15
CH184486T 1935-02-15

Publications (1)

Publication Number Publication Date
CH184486A true CH184486A (en) 1936-05-31

Family

ID=25720450

Family Applications (1)

Application Number Title Priority Date Filing Date
CH184486D CH184486A (en) 1935-02-15 1935-02-15 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH184486A (en)

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