CH214906A - Process for the preparation of a disazo dye. - Google Patents
Process for the preparation of a disazo dye.Info
- Publication number
- CH214906A CH214906A CH214906DA CH214906A CH 214906 A CH214906 A CH 214906A CH 214906D A CH214906D A CH 214906DA CH 214906 A CH214906 A CH 214906A
- Authority
- CH
- Switzerland
- Prior art keywords
- amino
- preparation
- dye
- disazo dye
- disazo
- Prior art date
Links
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 5
- 239000000975 dye Substances 0.000 claims description 17
- JJYPMNFTHPTTDI-UHFFFAOYSA-N 3-methylaniline Chemical compound CC1=CC=CC(N)=C1 JJYPMNFTHPTTDI-UHFFFAOYSA-N 0.000 claims description 6
- 150000008049 diazo compounds Chemical class 0.000 claims description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 2
- 150000001555 benzenes Chemical class 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 241001024304 Mino Species 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- -1 Nitroamino- Chemical class 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- CHMBIJAOCISYEW-UHFFFAOYSA-N n-(4-aminophenyl)acetamide Chemical compound CC(=O)NC1=CC=C(N)C=C1 CHMBIJAOCISYEW-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/02—Disazo dyes
- C09B31/08—Disazo dyes from a coupling component "C" containing directive hydroxyl and amino groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfabren zur Herstellung eines Disazofarbstoffes. Es wurde gefunden, dass man wertvolle Disazofarbstoffe erhält, wenn man die Diazo- verbindungen von Amino-co-sulfoacylamino- benzolen von der Formel
EMI0001.0009
worin X einen Alkylrest, Y Wasserstoff oder einen Alkylrest bedeutet, mit der Massgabe, dass Y für einen Alkylrest steht,
wenn die Sulfoacylaminogruppe sich in o-Stellung zur Aminogruppe befindet, und worin der Benzol kern noch weitere, nicht löslichmachende Gruppen enthalten kann, mit p-ständig kup pelnden Aminen der Benzolreihe zu Monoazo- farbstoffen vereinigt,
diese weiterdiazotiert und mit einer 2-Acylamino-5-oxynaphthalin- 7-sulfonsäure oder einem Substitutionsprodukt derselben kuppelt. Man erhält auf diese Weise- Farbstoffe, die auf pflanzlichen Fasern rote bis violette Farbtöne liefern. Vor ähnlichen, aus der deut schen Patentschrift Nr. 614541 sowie aus der französischen Patentschrift Nr.
436576 be kannten Disazofarbstoffen zeichnen sich die unter Verwendung von diazotierten Amino- cu-sulfoacylamino-benzolen als Anfangskompo nenten hergestellten neuen Farbstoffe dadurch aus, dass sie wasserechtere Färbungen liefern als die bekannten Farbstoffe.
Die bei dem Verfahren als Anfangskompo nenten verwendeten Amine können in der Weise erhalten werden, dass man Nitroamino- bezw. Nitromonoalkylamino-benzole mit Chlor- acylchloriden zu den entsprechenden Nitro- (cu-chloracylamino)- bezw. Nitro-(ao-chloracyl- N-alkylamino)-benzolen kondensiert,
darauf das Chloratom mittels Natriumsulfit gegen die Sulfonsäuregruppe austauscht und anschliessend die Nitrogruppe reduziert. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines Disazo- farbstoffes, welches dadurch gekennzeichnet ist, dalj man die Diazoverbindung von 1 Amino-3-(w-sulfoacetyla,mino)-benzol mit 1- Amino-3-methylbenzol vereinigt,
den erhalte nen Monoazofarbstoff weiterdiazotiert und mit dem gemischten Harnstoff aus 2-Amino-5- oxynaphthalin-7-sulfonsäure und 1-Amino-4- acetylaminobenzol kuppelt.
Beispiel: 23 Gewichtsteile 1-Amino-3-(cu-sulfoacety1.- amino)-benzol werden in 100 Volumteilen Wasser und 45 Volumteilen 2n-Natronlauge klar gelöst, mit 6,9 Gewichtsteilen Na.trium- nitrit versetzt, und dann wird das Gemisch langsam bei 0-3 in eine Lösung von 25 Volumteilen 30 /uiger Salzsäure in Wasser gegeben.
--Die so erhaltene Lösung der Diazo- verbindung wird mit der berechneten Menge 1-Amino-3-methylbenzol in schwach saurem Medium vereinigt. Nach beendeter Kupplung wird der Monoazofarbstoff abgeschieden und auf übliche Weise in Gegenwart von über schüssiger Salzsäure bei 15 u weiterdiazotiert. Die erhaltene Diazoverbindung des Monoazo- farbstoffes wird isoliert,
mit Wasser angeteigt und unter kräftigem Rühren bei 0-3<B>0</B> in neutralem bis bicarbonatalkalischem hMledium mit einer Lösung des Natriumsalzes des ge mischten Harnstoffes aus 2 llmino-5-oxvnaph- thalin-7-sulfonsäure und 1-zlmino-4-acetyl- aminobenzol. gekuppelt. Der erhaltene Dis- azofarbstof wird wie üblich isoliert und getrocknet.
Er stellt ein 1)i-aunviolette.s Pulver dar, das Baumwolle in klaren, sehr braunstichig roten Tönen färbt, die sehr gute N ahecht- heiten besitzen.
Procedure for making a disazo dye. It has been found that valuable disazo dyes are obtained if the diazo compounds of amino-co-sulfoacylamino-benzenes of the formula
EMI0001.0009
where X is an alkyl radical, Y is hydrogen or an alkyl radical, with the proviso that Y is an alkyl radical,
if the sulfoacylamino group is in the o-position to the amino group, and in which the benzene nucleus may contain other, non-solubilizing groups, combined with p-coupling amines of the benzene series to form monoazo dyes,
this is further diazotized and coupled with a 2-acylamino-5-oxynaphthalene-7-sulfonic acid or a substitution product of the same. In this way, dyes are obtained which produce red to purple hues on vegetable fibers. Before similar, from the German patent specification No. 614541 and from the French patent specification No.
436576 known disazo dyes, the new dyes produced using diazotized aminocu-sulfoacylamino-benzenes as starting components are distinguished by the fact that they provide dyeings that are more waterfast than the known dyes.
The amines used as initial components in the process can be obtained in such a way that one respectively Nitroamino-. Nitromonoalkylamino-benzenes with chloroacyl chlorides to the corresponding nitro (cu-chloroacylamino) - respectively. Nitro- (ao-chloroacyl- N-alkylamino) -benzenes condensed,
then the chlorine atom is exchanged for the sulfonic acid group using sodium sulfite and the nitro group is then reduced. The subject of the present patent is a process for the preparation of a disazo dye, which is characterized in that the diazo compound of 1-amino-3- (w-sulfoacetyla, mino) -benzene is combined with 1-amino-3-methylbenzene,
the received monoazo dye is further diazotized and coupled with the mixed urea of 2-amino-5-oxynaphthalene-7-sulfonic acid and 1-amino-4-acetylaminobenzene.
Example: 23 parts by weight of 1-amino-3- (cu-sulfoacety1.-amino) -benzene are dissolved in 100 parts by volume of water and 45 parts by volume of 2N sodium hydroxide solution, 6.9 parts by weight of sodium trium nitrite are added, and then the Mixture slowly at 0-3 in a solution of 25 parts by volume of 30% hydrochloric acid in water.
The solution of the diazo compound thus obtained is combined with the calculated amount of 1-amino-3-methylbenzene in a weakly acidic medium. After the coupling has ended, the monoazo dye is deposited and diazotized further in the usual manner in the presence of excess hydrochloric acid at 15 u. The resulting diazo compound of the monoazo dye is isolated,
made into a paste with water and stirred vigorously at 0-3 <B> 0 </B> in neutral to bicarbonate-alkaline hMledium with a solution of the sodium salt of the mixed urea of 2 llmino-5-oxynaphthalene-7-sulfonic acid and 1-zlmino -4-acetyl-aminobenzene. coupled. The disazo dye obtained is isolated and dried as usual.
It is a 1) aunviolet powder which dyes cotton in clear, very brownish red tones, which are very fast.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE214906X | 1938-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH214906A true CH214906A (en) | 1941-05-31 |
Family
ID=5821189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH214906D CH214906A (en) | 1938-10-24 | 1939-10-15 | Process for the preparation of a disazo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH214906A (en) |
-
1939
- 1939-10-15 CH CH214906D patent/CH214906A/en unknown
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