CH143997A - Process for the production of an indigoid dye. - Google Patents
Process for the production of an indigoid dye.Info
- Publication number
- CH143997A CH143997A CH143997DA CH143997A CH 143997 A CH143997 A CH 143997A CH 143997D A CH143997D A CH 143997DA CH 143997 A CH143997 A CH 143997A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- dye
- indigoid dye
- violet
- indigoid
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 238000000034 method Methods 0.000 title claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- AYGGQJHJRFZDFH-UHFFFAOYSA-N 5,7-dichloro-1h-indole-2,3-dione Chemical compound ClC1=CC(Cl)=CC2=C1NC(=O)C2=O AYGGQJHJRFZDFH-UHFFFAOYSA-N 0.000 claims description 2
- 229920000742 Cotton Polymers 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 claims 1
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 241000300547 Viola ambigua Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical compound OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 description 1
- UHZYTMXLRWXGPK-UHFFFAOYSA-N phosphorus pentachloride Chemical compound ClP(Cl)(Cl)(Cl)Cl UHZYTMXLRWXGPK-UHFFFAOYSA-N 0.000 description 1
- 238000003756 stirring Methods 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
- C09B7/06—Indone-thionapthene indigos
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines indigoiden Farbstoffes. Es wurde gefunden, dass man einen wertvollen indigoiden Farbstoff herstellen kann, wenn man 4,5-Dichlor-7-methyl-3- oxythionaphthen mit 5,7 - Dichlorisatin - a - chlorid kondensiert.
Der Farbstoff bildet ein. violett gefärb tes Pulver, löst sieh in konzentrierter Schwe felsäure mit grünlichblauer Farbe und gibt mit Hydrosulfit und Natronlauge eine orange gefärbte Küpe, aus der Baumwolle in sehr echten violetten Tönen gefärbt wird.
<I>Beispiel:</I> 216 Teile 5,7-Dichlorisatin werden durch einstündiges Erwärmen mit 2500 Teilen Chlorbenzol und 206,5 Teilen Phosphor- pentachlorid auf<B>100-110'</B> in das 5,7- Di- chlorisatin-a-chlorid übergeführt. Nach dem Abkühlen auf 80 lässt man eine Lösung von <B>233</B> Teilen 4,5-Dichlor-7-methyl-3-oxythio- naphthen in 2000 Teilen Chlorbenzol unter Rühren zufliessen. Nach kurzer Zeit ist die Farbstoffbildung beendigt.
Man filtriert, wäscht mit Benzol und trocknet.
Process for the production of an indigoid dye. It has been found that a valuable indigoid dye can be produced if 4,5-dichloro-7-methyl-3-oxythionaphthene is condensed with 5,7-dichloroisatin-a-chloride.
The dye forms a. Violet colored powder, dissolves in concentrated sulfuric acid with a greenish blue color and gives an orange colored vat with hydrosulphite and sodium hydroxide solution, from which cotton is colored in very real violet tones.
<I> Example: </I> 216 parts of 5,7-dichloroisatin are heated to <B> 100-110 '</B> with 2500 parts of chlorobenzene and 206.5 parts of phosphorus pentachloride for one hour in the 5,7- Dichlorisatin-a-chloride converted. After cooling to 80, a solution of 233 parts of 4,5-dichloro-7-methyl-3-oxythionnaphthene in 2000 parts of chlorobenzene is allowed to flow in with stirring. After a short time, the dye formation is complete.
It is filtered, washed with benzene and dried.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH143997T | 1929-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH143997A true CH143997A (en) | 1930-12-15 |
Family
ID=4400508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH143997D CH143997A (en) | 1929-02-02 | 1929-02-02 | Process for the production of an indigoid dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH143997A (en) |
-
1929
- 1929-02-02 CH CH143997D patent/CH143997A/en unknown
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