CH198317A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH198317A
CH198317A CH198317DA CH198317A CH 198317 A CH198317 A CH 198317A CH 198317D A CH198317D A CH 198317DA CH 198317 A CH198317 A CH 198317A
Authority
CH
Switzerland
Prior art keywords
preparation
monoazo dye
chlorobenzoyl
dye
amido
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 CH198317A publication Critical patent/CH198317A/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)

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 189141.    Verfahren zur Darstellung eines     RonoazofarbstoffAs.       Das vorliegende Patent betrifft ein Ver  fahren zur Darstellung eines     Monoazofarb-          stoffes    und ist dadurch gekennzeichnet, dass  man     4-(N-o-Chlorbenzoyl-N-benzyl)-amido-l-          amidobenzol    dianotiert und mit     N-o-Chlor-          benzoyl-r-säU-re    kuppelt.  



  <I>Beispiel:</I>  33,7 Teile     4-(N-o-Chlorbenzoyl-N-benzyl)-          amido-l-amidobenzol    werden mit 6,9 Teilen  Nitrit und 25 Teilen Salzsäure dianotiert und  in Gegenwart von überschüssigem Natrium  acetat mit 37,8 Teilen     N-o-Chlorbenzoyl-r-          säure    gekuppelt. Die Kupplung kann auch in  Gegenwart von     Natriumbicarbonat    oder ähnlich    schwachwirkenden     Neutralisationsmitteln    vor  genommen werden.  



  Der isolierte und getrocknete     Farbstoff     stellt ein rotes Pulver dar und färbt Wolle       und    Seide in lebhaften roten Tönen.



      Patent amendment to main patent No. 189141. Process for the preparation of a ronoazo dye As. The present patent relates to a method for the preparation of a monoazo dye and is characterized in that 4- (No-chlorobenzoyl-N-benzyl) -amido-l-amidobenzene is dianotated and with No-chlorobenzoyl-r-acid re clutch.



  <I> Example: </I> 33.7 parts of 4- (no-chlorobenzoyl-N-benzyl) - amido-l-amidobenzene are dianotized with 6.9 parts of nitrite and 25 parts of hydrochloric acid and in the presence of excess sodium acetate 37.8 parts of no-chlorobenzoyl-acid coupled. The coupling can also be carried out in the presence of sodium bicarbonate or similar weak neutralizing agents.



  The isolated and dried dye is a red powder and dyes wool and silk in vivid red tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Monoazo- farbstofEes, dadurch gekennzeichnet, dass man 4-(N-o-Chlorbenzoyl-N-benzyl)-amido-l-amido- benzol dianotiert und mit N-o-Chlorbenzoyl- r-säüre 'kuppelt. Der Farbstoff stellt ein rotes Pulver dar und färbt Wolle und Seide in lebhaften roten Tönen. PATENT CLAIM: Process for the preparation of a monoazo dye, characterized in that 4- (N-o-chlorobenzoyl-N-benzyl) -amido-1-amido-benzene is dianotated and coupled with N-o-chlorobenzoyl-acid '. The dye is a red powder and dyes wool and silk in vivid red tones.
CH198317D 1937-03-18 1937-03-18 Process for the preparation of a monoazo dye. CH198317A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH198317T 1937-03-18
CH189141T 1937-03-18

Publications (1)

Publication Number Publication Date
CH198317A true CH198317A (en) 1938-06-15

Family

ID=25721755

Family Applications (1)

Application Number Title Priority Date Filing Date
CH198317D CH198317A (en) 1937-03-18 1937-03-18 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH198317A (en)

Similar Documents

Publication Publication Date Title
CH198316A (en) Process for the preparation of a monoazo dye.
CH195530A (en) Process for the preparation of a monoazo dye.
CH198318A (en) Process for the preparation of a monoazo dye.
CH198315A (en) Process for the preparation of a monoazo dye.
CH189141A (en) Process for the preparation of an acidic monoazo dye.
CH192033A (en) Process for the preparation of an acidic monoazo dye.
CH192032A (en) Process for the preparation of an acidic monoazo dye.
CH192034A (en) Process for the preparation of an acidic monoazo dye.
CH241158A (en) Process for the preparation of a new monoazo dye.
CH192035A (en) Process for the preparation of an acidic monoazo dye.
CH195850A (en) Process for the preparation of an oxyazo dye.
CH179672A (en) Process for the preparation of a monoazo dye.
CH179671A (en) Process for the preparation of a monoazo dye.
CH183873A (en) Process for the preparation of an azo dye.
CH211799A (en) Process for the preparation of an azo dye.
CH296243A (en) Process for the preparation of an azo dye.
CH205822A (en) Process for the preparation of a monoazo dye.
CH164430A (en) Process for the production of a new azo dye.
CH220421A (en) Process for the preparation of a monoazo dye.
CH234035A (en) Process for the preparation of a monoazo dye.
CH234038A (en) Process for the preparation of a monoazo dye.
CH243007A (en) Process for the preparation of a new yellow wool dye.
CH219581A (en) Process for the preparation of an azo dye.
CH197172A (en) Process for the preparation of a monoazo dye.
CH191147A (en) Process for the preparation of a monoazo dye.