CH209095A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH209095A
CH209095A CH209095DA CH209095A CH 209095 A CH209095 A CH 209095A CH 209095D A CH209095D A CH 209095DA CH 209095 A CH209095 A CH 209095A
Authority
CH
Switzerland
Prior art keywords
preparation
monoazo dye
dye
silk
yellow
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 CH209095A publication Critical patent/CH209095A/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
    • C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
    • C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
    • C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
    • C09B29/3647—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms
    • C09B29/3652—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles
    • C09B29/366—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles containing hydroxy-1,2-diazoles, e.g. pyrazolone

Landscapes

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

Description

  

  Verfahren zur Darstellung eines     Monoazofarbstoffes.       Das vorliegende Patent betrifft ein Ver  fahren zur Darstellung eines     Monoazofarb-          stoffes    und ist dadurch gekennzeichnet, dass  man 4 - (4' -     Chlorbenzyl    - 2" -     chlorbenzoyl)-          amino-l-aminobenzol        diazotiert    und mit 1       (2',5'-Dichlor-4'-sulfophenyl)-3-methyl-5-pyr-          azolon    kuppelt.  



       Beispiel:     37,1 Teile     4-(4'-Chlorbenzyl-2"-chlorben-          zoyl)        -amino-l-aminobenzol    werden     mit    6,9 Tei  len Nitrit und 25 Teilen Salzsäure     diazotiert     und in Gegenwart von Soda mit 32,3 Teilen  1- (2', 5'     -Dichlor-    4' -     sulf        ophenyl)-        3-methyl-5-          pyrazolon    gekuppelt. Der isolierte und ge  trocknete Farbstoff stellt ein gelbes Pulver  dar und färbt Wolle und Seide licht-, walk-    und schweissecht lebhaft gelb. Er eignet sich  vorzüglich zum Färben von Seide aus neu  tralem Bad.



  Process for the preparation of a monoazo dye. The present patent relates to a process for the preparation of a monoazo dye and is characterized in that 4 - (4 '- chlorobenzyl - 2 "- chlorobenzoyl) - amino-1-aminobenzene is diazotized and 1 (2', 5'- Dichloro-4'-sulfophenyl) -3-methyl-5-pyr-azolone couples.



       Example: 37.1 parts of 4- (4'-chlorobenzyl-2 "-chlorobenzoyl) -amino-1-aminobenzene are diazotized with 6.9 parts of nitrite and 25 parts of hydrochloric acid and in the presence of soda with 32.3 parts 1- (2 ', 5' -Dichlor- 4 '- sulfophenyl) - 3-methyl-5-pyrazolone coupled.The isolated and dried dye is a yellow powder and dyes wool and silk fast to light, milled and perspiration lively yellow, it is ideal for dyeing silk from neutral baths.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Mono- azofarbstoffes, dadurch gekennzeichnet, dass man 4 - (4'- Chlorbenzyl - 2" - chlorbenzoyl)- amino-l-aminobenzol diazotiert und mit 1 (2',5'-Dichlor-4'-sulfophenyl)-3-methyl-5-pyr- azolon kuppelt. Der Farbstoff stellt ein. gelbes Pulver dar und färbt Wolle und Seide licht-, walk- und schweissecht lebhaft gelb. Er eignet sich vor züglich zum Färben von Seide aus neutralem Bad. PATENT CLAIM: Process for the preparation of a monoazo dye, characterized in that 4 - (4'-chlorobenzyl - 2 "- chlorobenzoyl) - amino-l-aminobenzene is diazotized and 1 (2 ', 5'-dichloro-4'- sulfophenyl) -3-methyl-5-pyrazolone. The dye is a yellow powder and dyes wool and silk vividly yellow, which is fast to light, milled and perspiration. It is especially suitable for dyeing silk from a neutral bath.
CH209095D 1938-03-02 1938-03-02 Process for the preparation of a monoazo dye. CH209095A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH209095T 1938-03-02
CH203692T 1938-03-02

Publications (1)

Publication Number Publication Date
CH209095A true CH209095A (en) 1940-03-15

Family

ID=25723960

Family Applications (1)

Application Number Title Priority Date Filing Date
CH209095D CH209095A (en) 1938-03-02 1938-03-02 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH209095A (en)

Similar Documents

Publication Publication Date Title
CH209096A (en) Process for the preparation of a monoazo dye.
CH203692A (en) Process for the preparation of a monoazo dye.
CH211032A (en) Process for the preparation of a monoazo dye sulfonic acid.
CH212119A (en) Process for the preparation of an azo dye.
CH212124A (en) Process for the preparation of an azo dye.
CH243006A (en) Process for the preparation of a new yellow wool dye.
CH183874A (en) Process for the preparation of an azo dye.
CH217947A (en) Process for the production of an acidic wool dye.
CH198315A (en) Process for the preparation of a monoazo dye.
CH183873A (en) Process for the preparation of an azo dye.
CH198318A (en) Process for the preparation of a monoazo dye.
CH212120A (en) Process for the preparation of an azo dye.
CH198342A (en) Process for the preparation of an azo dye.
CH195530A (en) Process for the preparation of a monoazo dye.
CH234037A (en) Process for the preparation of a monoazo dye.
CH211799A (en) Process for the preparation of an azo dye.
CH212123A (en) Process for the preparation of an azo dye.
CH125117A (en) Process for the preparation of a pyrazolone azo dye.
CH174526A (en) Process for the preparation of a monoazo dye.
CH234038A (en) Process for the preparation of a monoazo dye.
CH183872A (en) Process for the preparation of an azo dye.
CH183458A (en) Process for the preparation of an azo dye.
CH177462A (en) Process for the preparation of a new monoazo dye.
CH197171A (en) Process for the preparation of a monoazo dye.
CH189141A (en) Process for the preparation of an acidic monoazo dye.