CH87889A - Process for the preparation of a related disazo dye. - Google Patents
Process for the preparation of a related disazo dye.Info
- Publication number
- CH87889A CH87889A CH87889DA CH87889A CH 87889 A CH87889 A CH 87889A CH 87889D A CH87889D A CH 87889DA CH 87889 A CH87889 A CH 87889A
- Authority
- CH
- Switzerland
- Prior art keywords
- orange
- disazo dye
- yellow
- dye
- parts
- Prior art date
Links
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
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/02—Disazo dyes
- C09B31/12—Disazo dyes from other coupling components "C"
- C09B31/14—Heterocyclic components
- C09B31/143—1,2-Diazoles
- C09B31/147—Pyrazoles
-
- 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
- C09B45/00—Complex metal compounds of azo dyes
- C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
- C09B45/24—Disazo or polyazo compounds
- C09B45/26—Disazo or polyazo compounds containing chromium
-
- 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
- C09B45/00—Complex metal compounds of azo dyes
- C09B45/38—Preparation from compounds with —OH and —COOH adjacent in the same ring or in peri position
- C09B45/40—Chromium compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines beizenziehenden Disazofarbstoffes. Es wurde gefunden, dass durch Kuppeln von diazotierter m-Aininobenzoesäure mit der N-Methyl-co-sulfosäure der m-Aininobenzoe- säure, Abspalten des N-Methyl-io-sulfosäure- restes, Weiterdiazotieren der so erhaltenen Aminoazobenzoldicarbonsäure und Kuppeln mit 1-(4'-oxy-5'-carboxy-)
phenyl-3-methylpyra- zolon ein neuer Disazofarbstoff erhalten wird. Dieser Disazofarbstoff, welcher ein orange rotes Pulver bildet, löst sich in Wasser mit orangegelber, in konzentrierter Schwefelsäure mit roter Farbe und gibt auf Baumwolle, niit Hilfe von Chromacetat gedruckt, gelborange Färbungen von hervorragender Licht-, Chlor- und Seifenechtheit.
<I>Beispiel:</I> 13,7 Teile m-Aminobenzoesäure werden in 100 Teilen Wasser und 4,0 'feilen NaOH gelöst und mit der molekularen Menge Fornial- dehydbisulfitlösung aus 3,0 Teilen Formal dehyd und 10,4 Teilen NaHS03 kondensiert durch achtstündiges Erwärmen auf 40-50'.
Die erhaltene Lösung der Methyl-m-Sulfover- bindung aus m-Aminobenzoesäure wird bei Gegenwart von Natriumacetat vereinigt mit der auf übliche Weise erhaltenen Diazover- bindung aus<B>13,7</B> Teilen m-Aniinobenzoe- säure. Nach mehrtägigem Rühren bei Eis temperatur verschwindet die Diazoverbindung unter Ausscheidung eines orangegelben Farb- stoffes,
der durch Aussalzen isoliert wird. Die @Ietliy 1-(o-Salfogruppe wird hierauf auf bekannte Weise abgespalten, zuin Beispiel durch viertelstündiges Kochen mit 500 Teilen 2 'o Na011. Die nunmehr gebildete 4-r@mino- azobenzol-2,3'-dicarbonsiiure wird nun durch Ansäuren mit Essigsäure und Aussalzen -iso liert und stellt ein Hellgelbes Pulver dar,
das in 250 Teilen Wasser und 8 Teilen Na0H neuerdings gelöst wird. Die tief orangegelbe Lösung wird finit <B>6,9</B> Teilen NaNOs versetzt und durch plötzliches Ansäuren mit Salz säure unter Eiszugabe diazotiert und mit der soloalkalischen Lösung aus 23,-1 Teilen 1- (4'-oxy-5'-earboxy-) phenyl-I-inethylpyrazoloii kombiniert.
Process for the preparation of a related disazo dye. It has been found that by coupling diazotized m-amino benzoic acid with the N-methyl-co-sulfonic acid of m-amino benzoic acid, splitting off the N-methyl-io-sulfonic acid residue, further diazotizing the aminoazobenzenedicarboxylic acid thus obtained and coupling with 1- (4'-oxy-5'-carboxy-)
phenyl-3-methylpyrazolone a new disazo dye is obtained. This disazo dye, which forms an orange-red powder, dissolves in water with an orange-yellow color and in concentrated sulfuric acid with a red color and, printed with the help of chromium acetate, gives yellow-orange colorations of excellent light, chlorine and soap fastness.
<I> Example: </I> 13.7 parts of m-aminobenzoic acid are dissolved in 100 parts of water and 4.0 parts of NaOH, and with the molecular amount of formaldehyde bisulfite solution of 3.0 parts of formaldehyde and 10.4 parts of NaHSO3 condensed by heating to 40-50 'for eight hours.
The resulting solution of the methyl-m-sulfo compound from m-aminobenzoic acid is combined in the presence of sodium acetate with the diazo compound obtained in the customary manner from 13.7 parts of m-aniinobenzoic acid. After several days of stirring at ice temperature, the diazo compound disappears with the excretion of an orange-yellow dye,
which is isolated by salting out. The @Ietliy 1- (o-salfo group is then split off in a known manner, for example by boiling for 15 minutes with 500 parts of 2 'o Na011 -isolated with acetic acid and salting out and is a light yellow powder,
which has recently been dissolved in 250 parts of water and 8 parts of NaOH. The deep orange-yellow solution is finitely <B> 6.9 </B> parts of NaNOs and diazotized by sudden acidification with hydrochloric acid with the addition of ice and mixed with the solo alkaline solution of 23.1 parts of 1- (4'-oxy-5 ' -earboxy-) phenyl-I-inethylpyrazoloii combined.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH55711T | 1917-10-03 | ||
| CH87889T | 1917-10-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH87889A true CH87889A (en) | 1921-01-03 |
Family
ID=25698009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH87889D CH87889A (en) | 1917-10-03 | 1917-10-03 | Process for the preparation of a related disazo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH87889A (en) |
-
1917
- 1917-10-03 CH CH87889D patent/CH87889A/en unknown
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