CH178227A - Process for the preparation of a dye. - Google Patents
Process for the preparation of a dye.Info
- Publication number
- CH178227A CH178227A CH178227DA CH178227A CH 178227 A CH178227 A CH 178227A CH 178227D A CH178227D A CH 178227DA CH 178227 A CH178227 A CH 178227A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- carbonamide
- amino
- preparation
- group
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title description 2
- 239000000975 dye Substances 0.000 claims description 8
- 125000005521 carbonamide group Chemical group 0.000 claims description 3
- 239000007795 chemical reaction product Substances 0.000 claims description 3
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 1
- -1 p-toluidino Chemical group 0.000 claims 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 claims 1
- RZXMPPFPUUCRFN-UHFFFAOYSA-N p-toluidine Chemical compound CC1=CC=C(N)C=C1 RZXMPPFPUUCRFN-UHFFFAOYSA-N 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- AFBPFSWMIHJQDM-UHFFFAOYSA-N N-methyl-N-phenylamine Natural products CNC1=CC=CC=C1 AFBPFSWMIHJQDM-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- FWFGVMYFCODZRD-UHFFFAOYSA-N oxidanium;hydrogen sulfate Chemical compound O.OS(O)(=O)=O FWFGVMYFCODZRD-UHFFFAOYSA-N 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- HIFJUMGIHIZEPX-UHFFFAOYSA-N sulfuric acid;sulfur trioxide Chemical compound O=S(=O)=O.OS(O)(=O)=O HIFJUMGIHIZEPX-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines Farbstoffes. Es wurde gefunden, dass man einen wert vollen Farbstoff erhält, wenn rnan 1-Amirro- 2-cyarr-4-(p-tolrridirro)-arrtlrr-aclrinorr so lange mit einem sulfonierend wirkenden Mittel be handelt, bis das Reaktionsprodukt eben völ lig wasserlöslich geworden ist, und sodann die Cyangruppe zur Karbonamidgruppe ver seift.
Der erhaltene Farbstoff, eine Sulfonsäure des 1-Arnino-4-(p-toluidirro)-arithrachiriori-2- karbonamids, färbt Wolle aus saurere Bade in klaren blauen Tönen. <I>Beispiel</I> 10 Teile 1-Arrrirro-2-cyarr-4-(p-toluidirio)- authrachinon, erhältlich z.
B. durch Erhitzen von 1-Amino-2-cyarr-4-bromarrtbrachirron mit p-Toluidin, werden in<B>250</B> Teilen Schwefel säuremonohydrat gelöst, worauf bei Zirnmer- ternperatur so lange rauchende Schwefelsäure, enthaltend 23% SOs, zugegeben wird, bis eine entnommene und aufgearbeitete Probe erkennen lässt, dass das Reaktionsprodukt eben völlig wasserlöslich geworden ist.
Man gibt sodanr:.zu dem Reaktionsgemisch 6 Teile kristallisierte Borsäure und rührt so lange bei Zimmertemperatur, bis die Cyangruppe vollständig in die Karbonamidgruppe über geführt ist. Darauf gibt mau das Reaktions gemisch in Wasser und salzt den entstan denen Farbstoff in. der üblichen Weise aus.
Process for the preparation of a dye. It has been found that a valuable dye is obtained if 1-amirro-2-cyarr-4- (p-tolrridirro) -arrtlrr-aclrinorr is treated with a sulfonating agent until the reaction product is completely water-soluble has become, and then soaps the cyano group to the carbonamide group.
The dye obtained, a sulfonic acid of 1-amino-4- (p-toluidirro) -arithrachiriori-2-carbonamide, dyes wool from acidic baths in clear blue tones. <I> Example </I> 10 parts 1-Arrrirro-2-cyarr-4- (p-toluidirio) - authraquinone, available e.g.
B. by heating 1-amino-2-cyarr-4-bromarrtbrachirron with p-toluidine, are dissolved in <B> 250 </B> parts of sulfuric acid monohydrate, whereupon fuming sulfuric acid, containing 23% SOs, at room temperature for so long , is added until a sample taken and processed shows that the reaction product has just become completely water-soluble.
Then add: 6 parts of crystallized boric acid to the reaction mixture and stir at room temperature until the cyano group is completely converted into the carbonamide group. Thereupon the reaction mixture is poured into water and the resulting dye is salted out in the usual way.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE178227X | 1933-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH178227A true CH178227A (en) | 1935-07-15 |
Family
ID=5704949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH178227D CH178227A (en) | 1933-01-21 | 1933-12-20 | Process for the preparation of a dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH178227A (en) |
-
1933
- 1933-12-20 CH CH178227D patent/CH178227A/en unknown
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