CH184780A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH184780A
CH184780A CH184780DA CH184780A CH 184780 A CH184780 A CH 184780A CH 184780D A CH184780D A CH 184780DA CH 184780 A CH184780 A CH 184780A
Authority
CH
Switzerland
Prior art keywords
preparation
azo dye
dye
violet
dinitraniline
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 CH184780A publication Critical patent/CH184780A/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
    • C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/08—Amino benzenes
    • 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
    • C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/08—Amino benzenes
    • C09B29/0805—Amino benzenes free of acid groups
    • C09B29/0807—Amino benzenes free of acid groups characterised by the amino group
    • C09B29/0809—Amino benzenes free of acid groups characterised by the amino group substituted amino group
    • C09B29/0811—Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino
    • C09B29/0813—Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino substituted by OH, O-C(=X)-R, O-C(=X)-X-R, O-R (X being O,S,NR; R being hydrocarbonyl)

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

Description

  

  Zusatzpatent zum Hauptpatent     Nr.    182400.    Verfahren zur Darstellung eines     Azofarbstoffes.       Es wurde gefunden,     #dass    man durch     Di-          azotierung    und Kupplung von     5-Chlor-2        .4-          dinitranilin    mit     Butyl-ss,y-#dioxypropyl-m-          toluidin    einen     schwerlöslichen        Azofarbstoff     erhält, der sehr wertvolle     7#,igenschaiten    be  sitzt.

   Er färbt Lacke und     Acetatseide    licht  echt violett; die gefärbte Faser besitzt sehr       cru     <B>,</B> to     Felltheitseigenschaften    und ist rein weiss       ätzbar.     



  <I>Beispiel:</I>  <B>217,5</B> Teile     5-Chlor-2.        4--dinitranilin    wer  den mit :der berechneten Menge     Nitrosyl-          schwefels#Lure,    in konzentriert schwefelsaurer       Lösuno,        diazotiert,    auf Eis gegossen und die  verdünnte     Diazoniumlösung    mineralsauer ge  kuppelt mit<B>237</B> Teilen     Butyl-ss,1-dioxy-          propyl-m-toluidin.    Nach kurzer Zeit ist die       Farbstoffbildung    beendet, das Kupplungs  produkt wird in üblicher Weise isoliert, neu  tral gewaschen,     verputet    oder,

   nach dem    Trocknen bei mässiger Temperatur, zu einem  Färbepräparat umgearbeitet. Der Farbstoff,  ein in Wasser unlösliches, dunkles Pulver,  löst sieh in Alkohol oder ähnlichen, organi  schen Lösungsmitteln mit violetter, in kon  zentrierter Schwefelsäure mit gelbroter Farbe.



  Additional patent to main patent No. 182400. Process for the preparation of an azo dye. It has been found that by diazotization and coupling of 5-chloro-2 .4-dinitraniline with butyl-ss, y- # dioxypropyl-m-toluidine, a sparingly soluble azo dye is obtained which has very valuable properties .

   It colors lacquers and acetate silk light, real violet; the dyed fiber has very good skin properties and can be etched in pure white.



  <I> Example: </I> <B> 217.5 </B> parts 5-chloro-2. 4 - Dinitraniline is diazotized with: the calculated amount of nitrosylsulfur # lure, in concentrated sulfuric acid solution, poured onto ice and the diluted diazonium solution is coupled with <B> 237 </B> parts of butyl-ss, 1- dioxypropyl-m-toluidine. After a short time, the dye formation is complete, the coupling product is isolated in the usual way, neutral washed, plastered or,

   after drying at a moderate temperature, worked into a dye preparation. The dye, a dark powder that is insoluble in water, dissolves in alcohol or similar organic solvents with violet, in concentrated sulfuric acid with a yellow-red color.

Claims (1)

PATENTANSPRUCH: -Verfahren zur Darstellung eines Azofarb- stoffes, dadurch gekennzeichnet, #dass man 5- Chlor-2. 4-dinitranilin fliazotiert und mit Butyl-ss,y-cl#ioxypropyl-m-toluidin kuppelt. Der Farbstoff, ein in Wasser unlösliches, dunkles Pulver, löst sich. in Alkohol oder ähnlichen Lösungsmitteln mit -violetter, in konzentrierter Schwefelsäure mit gelbroter Farbe. PATENT CLAIM: Method for the preparation of an azo dye, characterized in that 5-chloro-2. 4-dinitraniline fliazotized and coupled with butyl-ss, y-cl # ioxypropyl-m-toluidine. The dye, a dark powder that is insoluble in water, dissolves. in alcohol or similar solvents with a violet color, in concentrated sulfuric acid with a yellow-red color. Er färbt Laeke und Aoetatseide licht echt violett; die gefärbte Faser besitzt sehr gute Echtheitseigenschaften und ist rein weiss ätzbar. It dyes Laeke and acetate silk light, real violet; the dyed fiber has very good fastness properties and can be etched in pure white.
CH184780D 1935-04-01 1935-04-01 Process for the preparation of an azo dye. CH184780A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH184780T 1935-04-01
CH182400T 1935-04-01

Publications (1)

Publication Number Publication Date
CH184780A true CH184780A (en) 1936-06-15

Family

ID=25720714

Family Applications (1)

Application Number Title Priority Date Filing Date
CH184780D CH184780A (en) 1935-04-01 1935-04-01 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH184780A (en)

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