CH133111A - Process for the preparation of a vat dye. - Google Patents
Process for the preparation of a vat dye.Info
- Publication number
- CH133111A CH133111A CH133111DA CH133111A CH 133111 A CH133111 A CH 133111A CH 133111D A CH133111D A CH 133111DA CH 133111 A CH133111 A CH 133111A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- vat dye
- allo
- dye
- vat
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 7
- 239000000984 vat dye Substances 0.000 title claims description 7
- 238000002360 preparation method Methods 0.000 title claims description 4
- 239000000975 dye Substances 0.000 claims description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 4
- 239000012320 chlorinating reagent Substances 0.000 claims description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- 239000000460 chlorine Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 238000007865 diluting Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- RELMFMZEBKVZJC-UHFFFAOYSA-N 1,2,3-trichlorobenzene Chemical compound ClC1=CC=CC(Cl)=C1Cl RELMFMZEBKVZJC-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- -1 iodine, metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
verfahren zur Darstellung eines Nüpenfarbstoffes. Im Schweizerpatent Nr.<B>127786</B> ist ein Verfahren zur Darstellung eines neuen Küpen- farbstoffes (allo-ms-Naphtodianthron) beschrie ben, bei dem 2 . 2'-Dimethyl-ms-benzdianthron mit alkalisch wirkenden Mitteln, bei An- oder Abwesenheit von Lösungsmitteln, be handelt wird.
Es wurde nun gefunden, dass man einen neuen Küpenfarbstoff, der zwei Atome Chlor im Molekül enthält, erhält, wenn man auf das zum Beispiel nach dem Verfahren des erwähnten Patentes erhältliche allo-ms-Naphto- dianthron ein Chlorierungsmittel einwirken lässt. Vorteilhaft arbeitet man in Anwesenheit von Katalysatoren. Als solche kommen bei spielsweise Jod, Metalle und Metallsalze in Betracht. Als Chlorierungsmittel können so wohl freies Chlor, als auch chlorentwickelnde Mittel zur Anwendung kommen; auch kann man in Gegenwart eines Lösungsmittels und mit Vorteil auch hier in Anwesenheit von Katalysatoren arbeiten.
Der erhaltene neue Küpenfarbstoff, der als Dichlor-allo-ms-naphtodianthron zu be zeichnen ist, stellt ein orangefarbenes Pulver dar, das sich in konzentrierter Schwefelsäure mit grüner Farbe löst und aus dieser Lösung durch Verdünnen mit Wasser wieder aus gefällt werden kann. Er färbt Baumwolle aus violetter Küpe in orangefarbenen, klaren, kräftigen Tönen.
<I>Beispiel Z:</I> Ein Teil des nach Beispiel 1 des Schweizer patentes Nr. 127786 gewonnenen Küpenfarb- stoffes (allo-ms-Naphtodianthron) wird in 10 bis 12 Teilen Nitrobenzol gelöst, worauf man 0,1 Teile Jod zusetzt und bei 60 unter Rühren tropfenweise l'/2 Teile Sulfurylchlorid zugibt. Man rührt noch 6 Stunden und saugt nach dem Erkalten den in orangeroten Nadeln ausgefallenen Farbstoff ab.
<I>Beispiel 2:</I> Durch eine kochende Lösung von 1 Teil des nach Beispiel 1 des Schweizerpatentes Nr. 127786 erhaltenen Produktes in 10 Teilen Trichlorbenzol, der 0,1 Teile Jod zugesetzt sind, wird während einer Stunde ein trockener Chlorstrom geleitet. Hierauf treibt man das Lösungsmittel mit Wasserdampf ab und fällt zweckmässig den Rückstand aus konzentrierter Schwefelsäure um.
method for the preparation of a pomaceous dye. In the Swiss patent no. <B> 127786 </B> a process for the preparation of a new vat dye (allo-ms-naphtodianthron) is described. 2'-Dimethyl-ms-benzdianthrone with alkaline agents, in the presence or absence of solvents, is treated.
It has now been found that a new vat dye which contains two atoms of chlorine in the molecule is obtained if a chlorinating agent is allowed to act on the allo-ms-naphthodianthrone obtainable, for example, by the process of the patent mentioned. It is advantageous to work in the presence of catalysts. Examples of these are iodine, metals and metal salts. Both free chlorine and chlorine-evolving agents can be used as chlorinating agents; it is also possible to work in the presence of a solvent, and here too, with advantage, in the presence of catalysts.
The new vat dye obtained, which is to be designated as dichloro-allo-ms-naphtodianthrone, is an orange powder that dissolves in concentrated sulfuric acid with a green color and can be precipitated from this solution by diluting it with water. He dyes cotton from a violet vat in orange, clear, strong tones.
<I> Example Z: </I> Part of the vat dye (allo-ms-naphtodianthrone) obtained according to example 1 of Swiss patent no. 127786 is dissolved in 10 to 12 parts of nitrobenzene, whereupon 0.1 part of iodine is added and at 60, with stirring, 1/2 part of sulfuryl chloride is added dropwise. The mixture is stirred for a further 6 hours and, after cooling, the dye which has precipitated in orange-red needles is filtered off with suction.
<I> Example 2: </I> A stream of dry chlorine is passed through a boiling solution of 1 part of the product obtained according to Example 1 of Swiss Patent No. 127786 in 10 parts of trichlorobenzene to which 0.1 part of iodine has been added . The solvent is then driven off with steam and the residue is expediently reprecipitated from concentrated sulfuric acid.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE133111X | 1926-07-08 | ||
| CH131594T | 1927-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH133111A true CH133111A (en) | 1929-05-15 |
Family
ID=25711652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH133111D CH133111A (en) | 1926-07-08 | 1927-06-24 | Process for the preparation of a vat dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH133111A (en) |
-
1927
- 1927-06-24 CH CH133111D patent/CH133111A/en unknown
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