CH268078A - Process for the preparation of an azo dye. - Google Patents
Process for the preparation of an azo dye.Info
- Publication number
- CH268078A CH268078A CH268078DA CH268078A CH 268078 A CH268078 A CH 268078A CH 268078D A CH268078D A CH 268078DA CH 268078 A CH268078 A CH 268078A
- Authority
- CH
- Switzerland
- Prior art keywords
- sep
- azo dye
- red
- preparation
- 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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
- C09B29/16—Naphthol-sulfonic acids
-
- 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)
- Optical Filters (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Description
Verfahren zur Herstellung eines Azofarbstoffes.
EMI0001.0002
Es <SEP> wurde <SEP> gefunden, <SEP> dass <SEP> man <SEP> zu <SEP> einem
<tb> wertvollen <SEP> Azofarbstoff <SEP> gelangt, <SEP> wenn <SEP> man
<tb> diazotiertes <SEP> 2-Axnino-l-n-butyloxy-4-tertiär amylbenzol <SEP> finit <SEP> 1-Oxyxiaplitlialin-3,8-clisulfon säure <SEP> vereinigt.
<tb>
Der <SEP> neue <SEP> Farbstoff <SEP> bildet <SEP> ein <SEP> rotes <SEP> Pulver,
<tb> das <SEP> sich <SEP> in <SEP> Wassei# <SEP> mit <SEP> roter <SEP> Farbe <SEP> löst <SEP> und
<tb> Wolle <SEP> aus <SEP> saurein <SEP> Bade <SEP> in <SEP> roten <SEP> Tönen <SEP> färbt.
<tb>
Das <SEP> beim <SEP> vorliegenden <SEP> Verfahren <SEP> als <SEP> Aus gangsstoff <SEP> dienende <SEP> 2-Aniino-l-n-butyloxy-l tei-tiäraniylliexizol <SEP> lässt <SEP> sich <SEP> beispielsweise <SEP> her stellen <SEP> durch <SEP> Nitrierung <SEP> von <SEP> 1-Oxy-4-t.ertiär.
<tb> ,iniyllienzol, <SEP> Biityliei-iing <SEP> der <SEP> ydrosylgruppe
<tb> und <SEP> Rednktion <SEP> des <SEP> Nitroätliei-s.
<tb>
Die <SEP> Diazotieru <SEP> ng <SEP> kann <SEP> naeli <SEP> bekannten,
<tb> für <SEP> schwer <SEP> diazot.ierbare <SEP> Amine <SEP> üblichen <SEP> Me thoden, <SEP> beispielsweise <SEP> in <SEP> Gegenwart <SEP> von <SEP> Al kohol <SEP> oder <SEP> Essigsä <SEP> ure <SEP> durchgeführt <SEP> werden.
<tb>
Die <SEP> KUpplun <SEP> @g <SEP> erfolgt <SEP> mit <SEP> Vorteil <SEP> in <SEP> alka lischem, <SEP> vorzugsweise, <SEP> alkaliearbonatalkali schem <SEP> Alediuni.
EMI0001.0003
<I>Beispiel:</I>
<tb> 23,.5 <SEP> Teile <SEP> ?-Aniino-l-n-butyloxy-4-tert.iäi# anivlbenzol <SEP> werden <SEP> mit <SEP> 140 <SEP> Teilen <SEP> Äthylalko- hol vermischt.
Unterhalb -I- <B>100</B> werden 35 Teile konz. Salzsäure zugesetzt, und unterhalb -I- 50 lässt man eine konz. wässerige Lösung von 7,2 Teilen Natriumnitrit zutropfen. Diese Diazolösung wird bei 01 mit, der Lösung von 3:5 Teilen des Dinatriumsalzes der 1-0xynapli- tlialin-3,8-disulfoxisäui@e in 330 Teilen einer gesättigten Natriumearbonatlösun- vermischt.
Naeli eini--en Stunden wird der rote Farbstoff nach Zugabe von Natriumehlorid abfiltriert und hierauf in heissem Wasser gelöst. Die Lö sung wird geklärt und mit so viel Natrium- ehlorid versetzt, class der Farbstoff zum gröss ten Teil wieder ausgefällt wird. Ilierauf wird der Farbstoff abfiltriert und syetroeknet.
Process for the preparation of an azo dye.
EMI0001.0002
<SEP> was found <SEP>, <SEP> that <SEP> man <SEP> to <SEP> one
<tb> valuable <SEP> azo dye <SEP> gets, <SEP> if <SEP> man
<tb> diazotized <SEP> 2-axnino-l-n-butyloxy-4-tertiary amylbenzene <SEP> finite <SEP> 1-oxyxiaplitlialin-3,8-clisulfonic acid <SEP> combined.
<tb>
The <SEP> new <SEP> dye <SEP> forms <SEP> a <SEP> red <SEP> powder,
<tb> the <SEP> <SEP> in <SEP> Wassei # <SEP> with <SEP> red <SEP> color <SEP> <SEP> and
<tb> Wool <SEP> from <SEP> acidic <SEP> bath <SEP> in <SEP> red <SEP> tones <SEP> dyes.
<tb>
The <SEP> in the <SEP> present <SEP> method <SEP> as <SEP> starting material <SEP> serving <SEP> 2-aniino-ln-butyloxy-1-tiäraniylliexizol <SEP> can be <SEP> < SEP> e.g. <SEP> produce <SEP> through <SEP> nitration <SEP> of <SEP> 1-oxy-4-tertiary.
<tb>, iniyllienzol, <SEP> Biityliei-iing <SEP> of the <SEP> ydrosyl group
<tb> and <SEP> Rednction <SEP> of the <SEP> Nitroätliei-s.
<tb>
The <SEP> diazotization <SEP> ng <SEP> can <SEP> naeli <SEP> known,
<tb> for <SEP> difficult <SEP> diazotizable <SEP> amines <SEP> common <SEP> methods, <SEP> for example <SEP> in <SEP> presence <SEP> of <SEP> alcohol < SEP> or <SEP> acetic acid <SEP> ure <SEP> are carried out <SEP>.
<tb>
The <SEP> KUpplun <SEP> @g <SEP> takes place <SEP> with <SEP> advantage <SEP> in <SEP> alkaline, <SEP> preferably, <SEP> alkali carbonate alkaline <SEP> alediuni.
EMI0001.0003
<I> Example: </I>
<tb> 23, .5 <SEP> parts <SEP>? -aniino-ln-butyloxy-4-tert.iäi # anivlbenzol <SEP> are <SEP> with <SEP> 140 <SEP> parts <SEP> ethyl alcohol- get mixed.
Below -I- <B> 100 </B> 35 parts of conc. Hydrochloric acid is added, and below -I- 50 a conc. add dropwise aqueous solution of 7.2 parts of sodium nitrite. This diazo solution is mixed at 01 with the solution of 3: 5 parts of the disodium salt of 1-oxynapli- tlialin-3,8-disulfoxisäui @ e in 330 parts of a saturated sodium carbonate solution.
After adding sodium chloride, the red dye is filtered off for one hour and then dissolved in hot water. The solution is clarified and enough sodium chloride is added so that most of the dye is precipitated again. The dye is then filtered off and syetroeknet.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH262279T | 1947-04-30 | ||
CH268078T | 1947-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH268078A true CH268078A (en) | 1950-04-30 |
Family
ID=25730566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH268078D CH268078A (en) | 1947-04-30 | 1947-04-30 | Process for the preparation of an azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH268078A (en) |
-
1947
- 1947-04-30 CH CH268078D patent/CH268078A/en unknown
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