CH237397A - Process for the preparation of a new polyazo dye. - Google Patents
Process for the preparation of a new polyazo dye.Info
- Publication number
- CH237397A CH237397A CH237397DA CH237397A CH 237397 A CH237397 A CH 237397A CH 237397D A CH237397D A CH 237397DA CH 237397 A CH237397 A CH 237397A
- Authority
- CH
- Switzerland
- Prior art keywords
- mol
- amino
- carboxylic acid
- oxy
- new
- 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
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
- C09B43/136—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents
- C09B43/16—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents linking amino-azo or cyanuric acid residues
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Terfahren zur Herstellung eines neuen Polyazofarbstoffes. Es wurde gefunden, dass man einen neuen Polyazofarbstoff erhält, wenn man 1 Mol diazotierte 1-Aminobenzol - 2 - carbonsäure, 1 Mol 2 - Amino - 5 - oxynaphthalin - 7 - sulf on- säure, 1 Mol Cyanurchlorid,
1 Mol 4-Amino- 3-methoxy-5-methyl-4'-oxy-1,1'-azobenzol - 3'- carbonsäure und 1 Mol 4-Amino-4'-oxy-1,1'- azobenzol-3'-carbonsäure derart aufeinander einwirken lässt,
dass die Diazoverbindung in 6-Stellung des Naphthalinkerns eingreift und das Cyanurchlorid die Aminogruppe des Naphthalinderivates und diejenigen der bei den Aminoazofarbstoffe unter Bildung eines ternären Triazinkondensationsproduktes ver einigt.
Der neue Farbstoff stellt ein rotbraunes Pulver dar und färbt Baumwolle in schwach alkalischem Bade, das mit einer Kupfersalz lösung aus Kupfersulfat und weinsaurem Na trium versetzt wurde, in wasch- und licht echten orangebraunen Tönen an. <I>Beispiel:
</I> 27,4 Gewichtsteile 1-Aminobenzol-2-ear- bonsäure werden in 200 Gewichtsteilen Was- ser auf 40 erwärmt, 54 Gewichtsteile konz. Salzsäure zugegeben, mit Eis auf 5 ' gekühlt und mit 13,8 Gewichtsteilen Natriumnitrit diazotiert. Die klare Diazolösung wird mit 174,4 Gewichtsteilen des in bekannter Weise hergestellten Triazinproduktes aus 1 Mo1 Cyanurchlorid,
1 Mol 2-Amino-5-oxynaph- thalin-7-sulfonsäure, 1 Mol 4-Amino-3-meth- oxy-5-methyl-4'-oxy-1,1'- azobenzol-3'-carbon- säure und 1 Mol 4-Amino-4'-oxy-1,1'-azoben- zol-3'-carbonsäure, das in 2400 Teilen Was ser unter Zusatz von 120 Gewichtsteilen Na- triumcarbonat gelöst wurde, gekuppelt. Man rührt einige Stunden und fällt den gebilde ten Farbstoff mit Kochsalz.
Terfahren for the production of a new polyazo dye. It has been found that a new polyazo dye is obtained if 1 mol of diazotized 1-aminobenzene - 2 - carboxylic acid, 1 mol of 2 - amino - 5 - oxynaphthalene - 7 - sulfonic acid, 1 mol of cyanuric chloride,
1 mole of 4-amino-3-methoxy-5-methyl-4'-oxy-1,1'-azobenzene-3'-carboxylic acid and 1 mole of 4-amino-4'-oxy-1,1'-azobenzene-3 '-carboxylic acid can act on each other in such a way
that the diazo compound intervenes in the 6-position of the naphthalene nucleus and the cyanuric chloride unites the amino group of the naphthalene derivative and those of the aminoazo dyes to form a ternary triazine condensation product.
The new dye is a red-brown powder and dyes cotton in a weakly alkaline bath to which a copper salt solution of copper sulfate and tartaric acid sodium has been added in washable and light orange-brown tones. <I> example:
</I> 27.4 parts by weight of 1-aminobenzene-2-earboxylic acid are heated to 40 in 200 parts by weight of water, 54 parts by weight of conc. Added hydrochloric acid, cooled to 5 'with ice and diazotized with 13.8 parts by weight of sodium nitrite. The clear diazo solution is mixed with 174.4 parts by weight of the triazine product prepared in a known manner from 1 mol of cyanuric chloride,
1 mole of 2-amino-5-oxynaphthalene-7-sulfonic acid, 1 mole of 4-amino-3-methoxy-5-methyl-4'-oxy-1,1'-azobenzene-3'-carboxylic acid and 1 mol of 4-amino-4'-oxy-1,1'-azoben-zene-3'-carboxylic acid, which was dissolved in 2400 parts of water with the addition of 120 parts by weight of sodium carbonate, coupled. The mixture is stirred for a few hours and the dyestuff formed is precipitated with common salt.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH237397T | 1943-06-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH237397A true CH237397A (en) | 1945-04-30 |
Family
ID=4459950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH237397D CH237397A (en) | 1943-06-25 | 1943-06-25 | Process for the preparation of a new polyazo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH237397A (en) |
-
1943
- 1943-06-25 CH CH237397D patent/CH237397A/en unknown
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