CH192035A - Process for the preparation of an acidic monoazo dye. - Google Patents

Process for the preparation of an acidic monoazo dye.

Info

Publication number
CH192035A
CH192035A CH192035DA CH192035A CH 192035 A CH192035 A CH 192035A CH 192035D A CH192035D A CH 192035DA CH 192035 A CH192035 A CH 192035A
Authority
CH
Switzerland
Prior art keywords
preparation
monoazo dye
acidic
acidic monoazo
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Sandoz Chemische Fabri Vormals
Original Assignee
Chem Fab Vormals Sandoz
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 Fab Vormals Sandoz filed Critical Chem Fab Vormals Sandoz
Publication of CH192035A publication Critical patent/CH192035A/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
    • C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
    • C09B29/28—Amino naphthols
    • C09B29/30—Amino naphtholsulfonic acid

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum     Hauptpatent    Nr. 189141.    Verfahren zur Darstellung eines sauren     Monoazofarbstoffes.       Dass     vorliegende        Patent        betrifft        ein    Ver  fahren zur     Darstellung        eines    sauren     Monoazo-          fa.rbstoffes,        welches    dadurch     .gekenuzeiohnet     ist, -dass man     2-(N-p-Toluodsulfo-N-benzyl)

  -          ami        o-4-chlor-1-amidobenzol        diazotiert    und  mit     N-Benzol-y-säure    kuppelt.    <I>Beispiel:</I>  39     Teeile        2-(N-p-Toluolsulfo-N-benzyl)-          amido-4-ahlor-l-amidobenzol        werden    mit 6,9  Teilen Nitrit und 25     Teilen        Salzsäure        diazo-          tiert    und mit 34,

  3     Teilen        N-Benzoyl-y-säure     in     Gegenwart    von     überschüssigem        Natrium-          aoetat    gekuppelt. Der isolierte und getrock-         nete        Farbstoff        stellt    ein     rotes        Pulver    ,dar und       färbt    Wolle und Seide in     .gelbstiehig    Toten  Tönen an.



  <B> Additional patent </B> to main patent No. 189141. Process for the preparation of an acidic monoazo dye. The present patent relates to a method for the preparation of an acidic monoazo fa.rerstoffes, which .gekenuzeiohnet is thereby, -that one 2- (N-p-toluene sulfo-N-benzyl)

  - ami o-4-chloro-1-amidobenzene diazotized and coupled with N-benzol-y-acid. <I> Example: </I> 39 parts of 2- (N-p-toluenesulfo-N-benzyl) - amido-4-ahlor-1-amidobenzene are diazotized with 6.9 parts of nitrite and 25 parts of hydrochloric acid and 34,

  3 parts of N-benzoyl-y-acid coupled in the presence of excess sodium acetate. The isolated and dried dye is a red powder and stains wool and silk in yellowish dead tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines sauren Monoazofarbstoffes, dadurch ,gekennzeichnet, dass ma-n#2-(N-p-ToduoIsulfo-N-benzyl)-am#do- 4-oh#lor-l-,amidohenzol diazotiert und , Claim: method for the preparation of an acidic monoazo dye, characterized in that ma-n # 2- (N-p-ToduoIsulfo-N-benzyl) -am # do- 4-oh # lor-l-, amidohenzol is diazotized and, mit N- Benzoyl-y-säure kuppelt. Der Farbstoff Stellt ein rotes Pulver dar und färbt Wolle und Seide in .gelbstickig roten Tönen an. coupled with N-benzoyl-y-acid. The dye is a red powder and dyes wool and silk in yellowish red tones.
CH192035D 1936-03-31 1936-03-31 Process for the preparation of an acidic monoazo dye. CH192035A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH192035T 1936-03-31
CH189141T 1937-03-18

Publications (1)

Publication Number Publication Date
CH192035A true CH192035A (en) 1937-07-15

Family

ID=25721751

Family Applications (1)

Application Number Title Priority Date Filing Date
CH192035D CH192035A (en) 1936-03-31 1936-03-31 Process for the preparation of an acidic monoazo dye.

Country Status (1)

Country Link
CH (1) CH192035A (en)

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