CH209807A - Process for the preparation of a compound of the naphthalene series. - Google Patents
Process for the preparation of a compound of the naphthalene series.Info
- Publication number
- CH209807A CH209807A CH209807DA CH209807A CH 209807 A CH209807 A CH 209807A CH 209807D A CH209807D A CH 209807DA CH 209807 A CH209807 A CH 209807A
- Authority
- CH
- Switzerland
- Prior art keywords
- compound
- naphthalene series
- preparation
- naphthalene
- real
- Prior art date
Links
- 150000001875 compounds Chemical class 0.000 title claims description 10
- 150000002790 naphthalenes Chemical class 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title description 3
- 239000002253 acid Substances 0.000 claims description 5
- FIIDVVUUWRJXLF-UHFFFAOYSA-N 4-phenylmethoxyaniline Chemical compound C1=CC(N)=CC=C1OCC1=CC=CC=C1 FIIDVVUUWRJXLF-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 2
- 229920003086 cellulose ether Polymers 0.000 claims description 2
- 150000002170 ethers Chemical class 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung einer Verbindung der Naphthalinreihe. Das Hauptpatent betrifft ein Verfahren zur Herstellung einer Verbindung der Naph- thalinreihe, wonach man eine Aufschlämmung des 5-Amino-8-oxynaphthochinon-(4)-imins-(1) in einer wässrigen Flüssigkeit, deren pH-Wert unter 13,8 liegt, mit unterschwefliger Säure oder einem unterschwefligsauren Salz be handelt und die erhaltene Reduktionsverbin dung mit p-Aminophenolbenzyläther umsetzt.
Es wurde nun gefunden, dass man eben falls eine wertvolle Verbindung der Naph- thalinreihe erhält, wenn man eine Auf- schlämmung des nach dem Patent Nr. 201963 erhältlichen Naphthalinabkömmlings in einer wässrigen Flüssigkeit, deren pH-Wert unter 13,8 liegt, mit unterschwefliger Säure oder einem unterschwefligsauren Salz behandelt und die erhaltene Reduktionsverbindung mit p-Aminophenolbenzyläther umsetzt.
<I>Beispiel:</I> Eine Aufschlämmung von 30 Teilen des nach dem Beispiel des Patentes Nr. 201963 erhältlichen Naphthalinabkömmlings in 600 Teilen 10 o/oiger Natriumcarbonatlösung er wärmt man mit 30 Teilen Natriumhyposulfit etwa 5 Minuten lang auf 50 o C unter Rühren in einem offenen Gefäss und fügt dann 30 Teile p-Aminophenolbenzylätherzu. Nach weiterem, etwa 1/4-stündigem Rühren bei 50 o C gibt man 5 Teile 25 o/oiger Natronlauge zu und leitet eine Zeitlang Luft durch das Gemisch. Nach dem Ansäuern der Flüssigkeit mit Essigsäure saugt man die erhaltene Verbin dung ab und trocknet sie.
Der Farbstoff liefert auf Zelluloseestern und -äthern klare, grünstickig blaue, echte, insbesondere wasch und wasserechte Färbungen.
Process for the preparation of a compound of the naphthalene series. The main patent relates to a process for the preparation of a compound of the naphthalene series, according to which a slurry of 5-amino-8-oxynaphthoquinone- (4) -imine- (1) in an aqueous liquid, the pH of which is below 13.8 , treated with hyposulphurous acid or a hyposulphurous acid salt and the reduction compound obtained is reacted with p-aminophenol benzyl ether.
It has now been found that a valuable compound of the naphthalene series is also obtained if a suspension of the naphthalene derivative obtainable according to patent no. 201963 in an aqueous liquid, the pH of which is below 13.8, is made with hyposulphurous Treated acid or a hyposulfuric acid salt and the resulting reducing compound is reacted with p-aminophenol benzyl ether.
<I> Example: </I> A slurry of 30 parts of the naphthalene derivative obtainable according to the example of patent no. 201963 in 600 parts of 10% sodium carbonate solution is heated with 30 parts of sodium hyposulfite for about 5 minutes at 50 ° C. while stirring in an open vessel and then add 30 parts of p-aminophenol benzyl ether. After stirring for a further 1/4 hour at 50 ° C., 5 parts of 25% sodium hydroxide solution are added and air is passed through the mixture for a while. After the liquid has been acidified with acetic acid, the compound obtained is suctioned off and dried.
On cellulose esters and ethers, the dye provides clear, greenish blue, genuine, especially wash and water-fast colorations.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE209807X | 1937-03-04 | ||
| CH204854T | 1938-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH209807A true CH209807A (en) | 1940-04-30 |
Family
ID=25724098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH209807D CH209807A (en) | 1937-03-04 | 1938-03-03 | Process for the preparation of a compound of the naphthalene series. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH209807A (en) |
-
1938
- 1938-03-03 CH CH209807D patent/CH209807A/en unknown
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