CH187021A - Process for the preparation of an azo dye. - Google Patents
Process for the preparation of an azo dye.Info
- Publication number
- CH187021A CH187021A CH187021DA CH187021A CH 187021 A CH187021 A CH 187021A CH 187021D A CH187021D A CH 187021DA CH 187021 A CH187021 A CH 187021A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- preparation
- yellow
- color
- diazotized
- 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
- 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)
- Paper (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 183455. Verfahren zur Herstellung eines Azofarbstoffes. Es wurde gefunden, dass man einen Azo- farbstoff erhält, wenn man diazotiertes 1- Aminobenzol-3-metliylsulfe,u in alkalischem Medium mit 3#,5-Dioxychinolin vereinigt.
Der so erhältliche Farbstoff 'bildet ein gelbes Pulver, das sieh in Alkohol mit grün gelber Farbe löst und auf Acetylzellulose grünstichiggelbe Färbungen von guten Echt heitseigenschaften liefert.
<I>Beispiel:</I> <B>171</B> Teile 1-Aminobenzol-3-metllylsulion werden in salzsaurer Lösung wie üblich mit <B>69</B> Teilen Natriumnitrit #diazotiert. Die Di- azoläsung lässt man in eine Natriumaoetat oder -karbonat enthaltende Lösung von<B>161</B> Teilen 3,5-Dic>xychinolin in der äquivalenten Menge Na-#riumllydroxydlös-ung zutropfen. Nach beendeter Kupplung wird der Farb stoff abfiltriert und getrocknet.
Additional patent to main patent No. 183455. Process for the production of an azo dye. It has been found that an azo dye is obtained when diazotized 1-aminobenzene-3-methylsulfe is combined with 3 #, 5-dioxyquinoline in an alkaline medium.
The dye obtainable in this way forms a yellow powder which dissolves in alcohol with a green-yellow color and provides greenish-yellow colorations with good authenticity properties on acetyl cellulose.
<I> Example: </I> <B> 171 </B> parts of 1-aminobenzene-3-methylsulion are diazotized with <B> 69 </B> parts of sodium nitrite in a hydrochloric acid solution as usual. The diazole solution is added dropwise to a solution of 161 parts of 3,5-diacinoline in the equivalent amount of sodium hydroxide solution containing sodium acetate or carbonate. After the coupling has ended, the dye is filtered off and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH183455T | 1935-03-18 | ||
CH187021T | 1935-03-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH187021A true CH187021A (en) | 1936-10-15 |
Family
ID=25720868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH187021D CH187021A (en) | 1935-03-18 | 1935-03-18 | Process for the preparation of an azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH187021A (en) |
-
1935
- 1935-03-18 CH CH187021D patent/CH187021A/en unknown
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