CH106459A - Process for the preparation of a derivative of 6: 6'-diethoxy-bis-thionaphthene indigo. - Google Patents
Process for the preparation of a derivative of 6: 6'-diethoxy-bis-thionaphthene indigo.Info
- Publication number
- CH106459A CH106459A CH106459DA CH106459A CH 106459 A CH106459 A CH 106459A CH 106459D A CH106459D A CH 106459DA CH 106459 A CH106459 A CH 106459A
- Authority
- CH
- Switzerland
- Prior art keywords
- bis
- derivative
- preparation
- diethoxy
- sulfuric acid
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 7
- 238000002360 preparation method Methods 0.000 title claims description 3
- 229940097275 indigo Drugs 0.000 title description 6
- 235000000177 Indigofera tinctoria Nutrition 0.000 title description 5
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 title description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 5
- 230000002378 acidificating effect Effects 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 238000004043 dyeing Methods 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- 150000007513 acids Chemical class 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 239000007800 oxidant agent Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- VFNGKCDDZUSWLR-UHFFFAOYSA-N disulfuric acid Chemical compound OS(=O)(=O)OS(O)(=O)=O VFNGKCDDZUSWLR-UHFFFAOYSA-N 0.000 claims 1
- 235000002639 sodium chloride Nutrition 0.000 description 5
- -1 sulfuric acid ester Chemical class 0.000 description 5
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 description 3
- VIFKLIUAPGUEBV-UHFFFAOYSA-N 2-(3-hydroxy-1h-indol-2-yl)-1h-indol-3-ol Chemical compound N1C2=CC=CC=C2C(O)=C1C1=C(O)C2=CC=CC=C2N1 VIFKLIUAPGUEBV-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- XTHPWXDJESJLNJ-UHFFFAOYSA-N sulfurochloridic acid Chemical compound OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 2
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- WSNZLQGGHKYFAZ-UHFFFAOYSA-M [Na+].[O-]S(Cl)(=O)=O Chemical compound [Na+].[O-]S(Cl)(=O)=O WSNZLQGGHKYFAZ-UHFFFAOYSA-M 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Inorganic materials O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C09B7/00—Indigoid dyes
- C09B7/10—Bis-thionapthene indigos
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Indole Compounds (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 102540. Verfahren zur Darstellung eines Derivates von 6:6'Diaethogy-bis-thionaphtenindigo. Im Hauptpatent wurde ein Verfahren beschrieben zur Herstellung eines beständi gen wasserlöslichen Derivates von Indigo in fester Form, aus dem durch Oxydation der Farbstoff zurückgebildet werden kann und das wertvoll ist für die Verwendung in der Färberei und Druckerei.
Dieses Ver fahren besteht darin, dass Leukoindigo durch Behandeln mit 8chwefelsäiireanhydrid oder solches als Veresterungsmittel abgebenden Substanzen, zweckmässig bei Gegenwart einer tertiären Base, wie zum Beispiel Dimethyl- anilin, in den sauren Ester der Schwefel säure übergeführt wird. Die nach diesem Verfahren entstehende Verbindung ist ein saurer, schwefelsaurer Ester, wahrscheinlich ein Enolester des Leukoindigo, ein Körper, der noch saure - salzbildende Gruppen ent hält, die die Wasserlöslichkeit des Produktes bedingen.
Es wurds nun gefunden, dass dieses Ver fahren auch anwendbar ist auf 6:6'-Di- äthoxy-bis-thionaphthenindigo, indem die Leukoverbindung von 6:6'-Diäthoxy-bis- Thionaphthenindigo auf die genannte Weise in den sauren Ester der Schwefelsäure über geführt wird. .
Beispiel: 38 Teile trockenes Dihydro-6:6'-Di- äthoxy-bis-thio-naphthenindigo werden unter Rühren in ein gekühltes Gemisch von 250 Teilen Dimethylanilin und 35,5 Teilen Chlor- sulfonsäure eingetragen. Man lässt die Tem peratur auf Zimmerwärme steigen, erhöht diese nach vier Stunden allmählich auf 50 C und hält diese Temperatur während zwei Stunden inne.
Es wird alkalisch gemacht und mit Wasserdampf das Dimethylanilin abdestil- liert. Die zurückbleibende Lösung wird fil triert und durch Zusatz von wenig Koch salz das gebildete Estersalz gefällt.
Der neue wasserlösliche Körper ist so wohl in Substanz, als auch in Lösung be ständig. Durch Alkali wird die wässerige Lösung nicht verändert; durch Mineral säuren erfolgt kalt langsam, in der Hitze schneller Zersetzung des gelösten Estersalzes Gelinde Oxydationsmittel in Gegenwart von Säure bewirken eine rasche und quantitative Piiel,:bildung des Farbstoffes.
In der Anwendung kann die zu färbende Substanz, Fas-,:r usw. init einer wässerigen Lösung des neuen Estersalzes ganz oder lokal imprägniert und durch geeignete Oxy dationswirkung die Färbung rasch und glatt zur Entwicklung gebracht werden. Dieses Derivat von 6:6'-Diäthoxy-bis-thionaphtlien- indigo gestattet also Färbungen mit diesem Farbstoff in einfachster Weise zu erzeugen unter Umgehung der umständlichen Küpe.
In dem erwähnten Beispiel kann an Stelle der Clilorsulfonsäure allgemein eine Halogen sulfonsäure, ein Salz einer Halogensulfon- säure (wie zum Beispiel Natriumclilorsulfo- nat), s i Uurei i rauchende nhydrid verwendet Schwefelsäure werden. oder
Additional patent to main patent no. 102540. Process for the preparation of a derivative of 6: 6'Diaethogy-bis-thionaphtenindigo. The main patent describes a process for the production of a stable water-soluble derivative of indigo in solid form, from which the dye can be reformed by oxidation and which is valuable for use in dyeing and printing.
This process consists in converting the leucoindigo into the acidic ester of sulfuric acid by treating it with sulfuric anhydride or with substances that release such as esterifying agents, expediently in the presence of a tertiary base, such as dimethylaniline, for example. The compound resulting from this process is an acidic, sulfuric acid ester, probably an enol ester of leuco indigo, a body that still contains acidic - salt-forming groups that make the product soluble in water.
It has now been found that this process is also applicable to 6: 6'-diethoxy-bis-thionaphthene indigo by converting the leuco compound of 6: 6'-diethoxy-bis-thionaphthene indigo into the acid ester of sulfuric acid in the above-mentioned manner is led over. .
Example: 38 parts of dry dihydro-6: 6'-diethoxy-bis-thio-naphthene indigo are introduced into a cooled mixture of 250 parts of dimethylaniline and 35.5 parts of chlorosulphonic acid with stirring. The temperature is allowed to rise to room temperature, this is increased gradually to 50 C after four hours and this temperature is maintained for two hours.
It is made alkaline and the dimethylaniline is distilled off with steam. The remaining solution is filtered and the ester salt formed is precipitated by adding a little common salt.
The new water-soluble body is both in substance and in solution constant. The aqueous solution is not changed by alkali; Mineral acids result in slow cold decomposition, and faster decomposition of the dissolved ester salt in heat. Soft oxidizing agents in the presence of acid cause rapid and quantitative formation of the dye.
In use, the substance to be colored, Fas- ,: r, etc., can be completely or locally impregnated with an aqueous solution of the new ester salt and the color can be developed quickly and smoothly through a suitable oxidation effect. This derivative of 6: 6'-diethoxy-bis-thionaphtlien-indigo thus allows dyeings with this dye to be produced in the simplest possible way, avoiding the cumbersome vat.
In the example mentioned, a halosulfonic acid, a salt of a halosulfonic acid (such as, for example, sodium chlorosulfonate), and sulfuric acid can generally be used instead of the chlorosulfonic acid. or
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH102540T | 1922-09-14 | ||
| CH106459T | 1923-09-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH106459A true CH106459A (en) | 1924-10-16 |
Family
ID=25706194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH106459D CH106459A (en) | 1922-09-14 | 1923-09-18 | Process for the preparation of a derivative of 6: 6'-diethoxy-bis-thionaphthene indigo. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH106459A (en) |
-
1923
- 1923-09-18 CH CH106459D patent/CH106459A/en unknown
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