CH169247A - Process for the production of a new azo dye. - Google Patents
Process for the production of a new azo dye.Info
- Publication number
- CH169247A CH169247A CH169247DA CH169247A CH 169247 A CH169247 A CH 169247A CH 169247D A CH169247D A CH 169247DA CH 169247 A CH169247 A CH 169247A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- production
- new azo
- yellow
- dye
- Prior art date
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
- C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
- C09B33/02—Disazo dyes
- C09B33/153—Disazo dyes in which the coupling component is a bis-(aceto-acetyl amide) or a bis-(benzoyl-acetylamide)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines neuen Azofarbstoffes. Es wurde gefunden, dass man einen neuen Azofarbstoff der Formel
EMI0001.0004
erhält, wenn man den Äthylester der 1-Diazo- 2-benzolcarbonsäure mit dem Tereplrthaloyl- bis-(essigsäure-2-methoxy - 5 - methylanilid) kuppelt.
Der so erhaltene Farbstoff stellt ein gelb oranges Pulver dar.. Auf geeigneten Substraten, wie zum Beispiel Baumwolle, Wolle, Kunst seide, hergestellt, färbt er diese in leuch tenden sehr echten grünstichiggelben Tönen. <I>Beispiel:</I> 33 Teile Äthylester der 1-Amino-2-benzol- carbonsäure werden wie üblich diazotiert und in eine Lösung von 45,6 Teilen Teraph- thaloyl - bis - (essigsäure-2-methogy-5-methyl- anilid), 100 Teilen Natriumhydroxydlösung (30 o/oig),
15 Teilen Soda und 2000 Teilen Wasser eingetragen. Der gebildete Farbstoff fällt sofort aus. Er wird filtriert, gewaschen und getrocknet.
Process for the production of a new azo dye. It has been found that a new azo dye of the formula
EMI0001.0004
obtained when the ethyl ester of 1-diazo-2-benzenecarboxylic acid is coupled with the terephthaloyl bis (acetic acid 2-methoxy - 5 - methylanilide).
The dye obtained in this way is a yellow-orange powder. Produced on suitable substrates, such as cotton, wool, artificial silk, it dyes them in bright, very genuine greenish-yellow tones. <I> Example: </I> 33 parts of ethyl ester of 1-amino-2-benzene-carboxylic acid are diazotized as usual and converted into a solution of 45.6 parts of teraphthaloyl - bis - (acetic acid-2-methogy-5- methyl anilide), 100 parts of sodium hydroxide solution (30%),
15 parts of soda and 2000 parts of water entered. The dye formed precipitates immediately. It is filtered, washed and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH167173T | 1933-01-16 | ||
CH169247T | 1933-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH169247A true CH169247A (en) | 1934-05-15 |
Family
ID=25718392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH169247D CH169247A (en) | 1933-01-16 | 1933-01-16 | Process for the production of a new azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH169247A (en) |
-
1933
- 1933-01-16 CH CH169247D patent/CH169247A/en unknown
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