CH239330A - Process for the preparation of a disazo dye. - Google Patents
Process for the preparation of a disazo dye.Info
- Publication number
- CH239330A CH239330A CH239330DA CH239330A CH 239330 A CH239330 A CH 239330A CH 239330D A CH239330D A CH 239330DA CH 239330 A CH239330 A CH 239330A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- red
- preparation
- parts
- disazo dye
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 title claims description 3
- -1 aminoazo Chemical group 0.000 claims description 5
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229920003043 Cellulose fiber 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
- 239000003086 colorant Substances 0.000 claims 1
- 239000000975 dye Substances 0.000 description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000006193 diazotization reaction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- GOJUJUVQIVIZAV-UHFFFAOYSA-N 2-amino-4,6-dichloropyrimidine-5-carbaldehyde Chemical group NC1=NC(Cl)=C(C=O)C(Cl)=N1 GOJUJUVQIVIZAV-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 150000008049 diazo compounds Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- KVBGVZZKJNLNJU-UHFFFAOYSA-N naphthalene-2-sulfonic acid Chemical compound C1=CC=CC2=CC(S(=O)(=O)O)=CC=C21 KVBGVZZKJNLNJU-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
- Paper (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 237186. Verfahren zur Herstellung eines Bisazofarbstoües. Es wurde gefunden, dass ein wertvoller wenn man den diazotierten Aminoazofarb- Disazofarbstoff hergestellt werden kann, stoff der Formel
EMI0001.0006
mit 8-Oxychinolin vereinigt.
Der neue Farbstoff stellt ein dunkelrotes Pulver dar, das sich in Wasser mit oranger und in verdünnten Alkälien mit gelbroter, in konzentrierter Schwefelsäure mit blauroter Farbe löst und Cellulosefasern in gelblich roten Tönen färbt, die beim Nachkupfern röter, .licht- und waschechter werden. Der dem vorliegenden Verfahren als Aus- gangsstoff dienende Aminoazofarbstoff der obigen Formel kann z.
B. durch Kuppeln von diazotierter 2-Amino -1-oxybenzol-4-sulfon- säure mit 2-(4'-Aminobenzoyl)-amino-5-oxyj naphthalin - 7 - sulfonsäure erhalten werden. Die Diazotierung kann in bekannter Weise z. B. so vorgenommen werden, dass man eine Lösung bezw. Suspension des Aminoazofarb- stoffes in neutralem oder sehwach alkali schem Medium mit der nötigen Menge Nitrit versetzt und dann ansäuert.
Die Kupplung der diazotierten Aminoazo- verbindung mit der 8-Oxychinolinkomponente erfolgt in alkalischem, beispielsweise Alkali hydroxyd und Alkalicarbonat enthaltendem Medium.
Beispiel: Der mit Kochsalz abgeschiedene, filtrierte und abgepresste Aminoazofarbstoff, der aus 18,9 Teilen 2-Ainino-l-phenol-4-sulfonsäure durch Diazotieren und Kuppeln mit 35,8 Tei len 2-(4' Aminobenzoyl)-ainino-5-oxynapli- thaliri-7-sulfonsäure in sodaalkalischem Me dium in bekannter Weise erhältlich ist, wird in 800 Teilen Wasser gelöst.
Dann gibt man 7 Teile Natriumnitrit zu und kühlt durch Zugabe von Eis auf 4 C. Hierauf versetzt man mit 30 Teilen konzentrierter Salzsäure:. und rührt etwa 6 Stunden. Die erhaltene Diazoverbindung gibt man nun zu einer auf 1" C gekühlten Lösung von 14,5 Teilen 8-Oxychinolin, 15 Teilen Atznatron und 20 Teilen calc. Soda in 500 Teilen Wasser. Nach einigen Stunden erwärmt man auf 55 C, gibt 200 Teile Kochsalz zu, wodurch der Farbstoff ausgefällt wird.
Er wird fil triert und der Niederschlag getrocknet.
<B> Additional patent </B> to main patent no. 237186. Process for the production of a bisazo dye. It has been found that a valuable substance of the formula can be prepared when the diazotized aminoazo-disazo dye can be prepared
EMI0001.0006
combined with 8-oxyquinoline.
The new dye is a dark red powder that dissolves in water with orange and in dilute alkalis with yellow-red, in concentrated sulfuric acid with blue-red color and dyes cellulose fibers in yellowish-red tones, which become redder, more lightfast and more washable when re-coppering. The aminoazo dye of the above formula which is used as a starting material for the present process can, for.
B. by coupling diazotized 2-amino -1-oxybenzene-4-sulfonic acid with 2- (4'-aminobenzoyl) amino-5-oxyj naphthalene - 7 - sulfonic acid can be obtained. The diazotization can be carried out in a known manner, for. B. be made so that one respectively a solution. Suspension of the aminoazo dye in a neutral or weakly alkaline medium, mixed with the necessary amount of nitrite and then acidified.
The coupling of the diazotized aminoazo compound with the 8-oxyquinoline component takes place in an alkaline medium containing, for example, alkali hydroxide and alkali carbonate.
Example: The aminoazo dye deposited with common salt, filtered and pressed out, which is obtained from 18.9 parts of 2-ainino-1-phenol-4-sulfonic acid by diazotization and coupling with 35.8 parts of 2- (4 'aminobenzoyl) -ainino-5 -oxynapli- thaliri-7-sulfonic acid in soda-alkaline medium is available in a known manner, is dissolved in 800 parts of water.
Then 7 parts of sodium nitrite are added and the mixture is cooled to 4 ° C. by adding ice. Then 30 parts of concentrated hydrochloric acid are added. and stir for about 6 hours. The diazo compound obtained is then added to a solution, cooled to 1 "C., of 14.5 parts of 8-oxyquinoline, 15 parts of caustic soda and 20 parts of soda in 500 parts of water. After a few hours, the mixture is heated to 55 ° C. and 200 parts of sodium chloride are added to, causing the dye to precipitate.
It is filtered and the precipitate is dried.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH239330T | 1942-08-21 | ||
| CH237186T | 1943-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH239330A true CH239330A (en) | 1945-09-30 |
Family
ID=25728233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH239330D CH239330A (en) | 1942-08-21 | 1942-08-21 | Process for the preparation of a disazo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH239330A (en) |
-
1942
- 1942-08-21 CH CH239330D patent/CH239330A/en unknown
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