CH173977A - Process for the preparation of a triarylmethane dye. - Google Patents
Process for the preparation of a triarylmethane dye.Info
- Publication number
- CH173977A CH173977A CH173977DA CH173977A CH 173977 A CH173977 A CH 173977A CH 173977D A CH173977D A CH 173977DA CH 173977 A CH173977 A CH 173977A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- preparation
- dyes
- triarylmethane dye
- triarylmethane
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 7
- 238000002360 preparation method Methods 0.000 title description 4
- 239000001003 triarylmethane dye Substances 0.000 title description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- FPYUJUBAXZAQNL-UHFFFAOYSA-N 2-chlorobenzaldehyde Chemical compound ClC1=CC=CC=C1C=O FPYUJUBAXZAQNL-UHFFFAOYSA-N 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000000975 dye Substances 0.000 description 9
- 125000000217 alkyl group Chemical group 0.000 description 5
- 125000003710 aryl alkyl group Chemical group 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 125000000547 substituted alkyl group Chemical group 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 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
- 239000003929 acidic solution Substances 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Coloring (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Description
Verfahren zur Herstellung eines Triarylmethanfarbstoffes. Es sind bereits Verfahren zur Darstellung von Farbstoffen der Triarylmethanreihe, wel che die Gruppe
EMI0001.0004
worin "alk" Alkyl und "R" Wasserstoff, Alkyl, Aralkyl oder Aryl bedeuten, enthalten, beschrieben worden.
Es wurde nun gefunden, dass man zu wert vollen Farbstoffen der Triarylmethanreihe ge langt, wenn man solche Farbstoffe dieser Reihe, die die Gruppe
EMI0001.0012
worin "alk" für eine substituierte Alkylgruppe und "R(C für Wasserstoff, - Alkyl, Aralkyl oder Ary 1 steht, enthalten, nach an sich bekannten Verfahren herstellt.
Als Substituenten, die in dem Alkylrest der Sulfonalkylgruppe vor handen sein können, seien beispielsweise ge nannt: Hydroxyl, die verätherte Hydroxyl- gruppe und Halogen.
Die Herstellung der Farbstoffe kann in der Weise erfolgen, dass man aromatische Amine der allgemeinen Formel:
EMI0001.0027
worin "alk" für eine substituierte Alkylgruppe und "R" für Wasserstoff, Alkyl, Aralkyl oder Aryl steht, zu ihrem Aufbau verwendet, bezw. dass man in die Aminogruppe von fertig ge bildeten Triarylmethanfarbstoffen nachträglich die Gruppe alk-SOBH einführt.
Selbstverständlich kann man gegebenen falls die neuen Farbstoffe dadurch herstellen, dass man in die Alkylgruppe des fertig ge bildeten Farbstoffes nachträglich Substituenten einführt oder vorhandene Substituenten nach an sich bekannten Verfahren durch andere ersetzt.
Die so erhältlichen Farbstoffe haben die gleichen guten Eigenschaften wie die ein gangs beschriebenen. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines Triaryl- methanfarbstoffes. Es besteht darin, dass man 2 111o1 N-n-Butyl-N-phenylamino-N-p-oxypr-o- pyl-r-sulfonsäure mit 1 Mol o-Chlorbenz- aldahyd kondensiert und die so erhältliche Leukoverbindung zum Farbstoff oxydiert.
Beispiel 31 Gewichtsteile N-n-bLityl-N-phenyl- amino-N-,p-oxypropyl-Y-sulfosaures Natrium werden in 100 Gewichtsteilen heissen Wassers gelöst und unter Zugabe von 18 Gewichts teilen 20 o/oiger Salzsäure und 7,7 Gewichts teilen o-Chlorbenzaldehyd bei 96-100 o C in üblicher Weise zur Leukoverbindung konden siert. Gegebenenfalls wird hierauf wenig überschüssiger Aldehyd durch Wasserdampf destillation entfernt. Man oxydiert dann die Leukoverbindung in an sich bekannter Weise, z.
B. mit Chromsäure in saurer Lösung, zum Farbstoff der wahrscheinlichen Formel:
EMI0002.0017
Er fällt als rötlich bronzierendes Harz an und färbt die tierische Faser in sehr klaren, gelbstichiggrünen Tönen an.
Process for the preparation of a triarylmethane dye. There are already processes for the preparation of dyes of the triarylmethane series, wel che the group
EMI0001.0004
wherein "alk" is alkyl and "R" is hydrogen, alkyl, aralkyl or aryl.
It has now been found that valuable dyes of the triarylmethane series are obtained if such dyes of this series, which include the group
EMI0001.0012
where "alk" stands for a substituted alkyl group and "R (C stands for hydrogen, -alkyl, aralkyl or ary 1 contains, according to processes known per se.
Examples of substituents that may be present in the alkyl radical of the sulfonic alkyl group are: hydroxyl, the etherified hydroxyl group and halogen.
The dyes can be prepared in such a way that aromatic amines of the general formula:
EMI0001.0027
wherein "alk" stands for a substituted alkyl group and "R" stands for hydrogen, alkyl, aralkyl or aryl, used for their structure, respectively. that one subsequently introduces the alk-SOBH group into the amino group of ready-formed triarylmethane dyes.
Of course, if necessary, the new dyes can be prepared by subsequently introducing substituents into the alkyl group of the finished dyestuff or by replacing existing substituents with others according to processes known per se.
The dyes obtainable in this way have the same good properties as those described above. The present patent relates to a process for the preparation of a triaryl methane dye. It consists in condensing 2 111o1 N-n-butyl-N-phenylamino-N-p-oxypr-o-pyl-r-sulfonic acid with 1 mole of o-chlorobenzaldehyde and oxidizing the leuco compound thus obtainable to the dye.
Example 31 parts by weight of Nn-bLityl-N-phenylamino-N-, p-oxypropyl-Y-sulfonic acid sodium are dissolved in 100 parts by weight of hot water and, with the addition of 18 parts by weight of 20% hydrochloric acid and 7.7 parts by weight, are dissolved -Chlorobenzaldehyde condensed at 96-100 o C in the usual way to the leuco compound. If necessary, a little excess aldehyde is then removed by steam distillation. The leuco compound is then oxidized in a manner known per se, e.g.
B. with chromic acid in acidic solution, to the dye of the probable formula:
EMI0002.0017
It occurs as a reddish bronzing resin and colors the animal fibers in very clear, yellowish green tones.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH165834T | 1932-09-07 | ||
| DE173977X | 1932-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH173977A true CH173977A (en) | 1934-12-15 |
Family
ID=25718183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH173977D CH173977A (en) | 1932-09-07 | 1933-12-09 | Process for the preparation of a triarylmethane dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH173977A (en) |
-
1933
- 1933-12-09 CH CH173977D patent/CH173977A/en unknown
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