CH155328A - Process for the preparation of a water-soluble mixed aromatic-aliphatic diazoamino compound. - Google Patents
Process for the preparation of a water-soluble mixed aromatic-aliphatic diazoamino compound.Info
- Publication number
- CH155328A CH155328A CH155328DA CH155328A CH 155328 A CH155328 A CH 155328A CH 155328D A CH155328D A CH 155328DA CH 155328 A CH155328 A CH 155328A
- Authority
- CH
- Switzerland
- Prior art keywords
- aliphatic
- water
- preparation
- mixed aromatic
- diazoamino compound
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung einer wasserlöslichen gemischt aromatisch-aliphatischen Diazoaminoverbindung. Durch das Hauptpatent Nr. 143023 ist ein Verfahren zur Herstellung einer wasser löslichen, gemischt aromatiscb-aliphatischen Diazoaminoverbindung geschützt. Es ist da durch gekennzeichnet, dass man die Diazo- verbindung von 4-Chlor-2-toluidin in Gegen wart eines säurebindenden Mittels auf Sar- kosin einwirken lässt.
Es wurde nun weiter gefunden, dass man ebenfalls zu einer ausgezeichnet wasserlösli- chen,gemischt aromatisch-aliphatischen Diazo- aminoverbindung gelangt, die im übrigen alle wertvollen Eigenschaften der durch das Haupt patent geschützten Diazoaminoverbindung zeigt, wenn man die Diazoverbindung von 4-Chlor-2-amino-l-methylbenzol.in Gegenwart eines säurebindenden Mittels einwirken lässt. auf a-Butylaminoäthansulfosäure.
Beispiel: Die in üblicher Weise in verdünnter Salz säure mit Natriumnitrit hergestellte Diazo- niumsalzlösung von 1 Grammolekül 4-Chlor- 2-amino-l-methylbenzol lässt man unter gutem Rühren in die sodaalkalische wässerige Lö sung von 181 Gewichtsteilen ss-butylamino- äthansulfosaurem Natrium einlaufen und rührt, bis kein Diazosalz mehr nachweisbar ist. Die sich bildende Diazoaminoverbindung scheidet sich ölig aus und wird nach kurzer Zeit gut kristallin.
Nach beendeter Kupplung versetzt man mit 10 % Natriumchlorid, saugt ab und trocknet bei einer Temperatur unter 100 0, zweckmässig im Vakuum.
Die Ausbeute ent- spricht .90 % der Theorie. Man kann auch andere säurebindende Mittel, wie Kaliumcar- bonat, Bicarbonate, Magnesiumcarbonat, Lau gen usw. verwenden. Man erhält ein wasser lösliches, schwach gefärbtes Pulver, welches durch Behandeln mit Säure in seine Kom ponenten zerfällt.
Process for the preparation of a water-soluble mixed aromatic-aliphatic diazoamino compound. The main patent No. 143023 protects a process for the preparation of a water-soluble, mixed aromatic-aliphatic diazoamino compound. It is characterized in that the diazo compound of 4-chloro-2-toluidine is allowed to act on sarcosine in the presence of an acid-binding agent.
It has now been found that one also arrives at an excellent water-soluble, mixed aromatic-aliphatic diazoamino compound which, moreover, shows all the valuable properties of the diazoamino compound protected by the main patent, if the diazo compound of 4-chloro-2 -amino-l-methylbenzol.in the presence of an acid-binding agent. on a-butylaminoethanesulfonic acid.
Example: The diazonium salt solution of 1 gram molecule of 4-chloro-2-amino-1-methylbenzene, prepared in the usual way in dilute hydrochloric acid with sodium nitrite, is allowed to stir well into the soda-alkaline aqueous solution of 181 parts by weight of sodium s-butylamino-ethanesulfonic acid run in and stir until no more diazo salt can be detected. The diazoamino compound that forms separates out in an oily form and becomes well crystalline after a short time.
When the coupling is complete, 10% sodium chloride is added, the mixture is filtered off with suction and dried at a temperature below 100 °, advantageously in vacuo.
The yield corresponds to .90% of theory. Other acid-binding agents such as potassium carbonate, bicarbonate, magnesium carbonate, lye, etc. can also be used. A water-soluble, slightly colored powder is obtained which breaks down into its components on treatment with acid.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH143023T | 1929-04-23 | ||
DE155328X | 1930-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH155328A true CH155328A (en) | 1932-06-15 |
Family
ID=25714163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH155328D CH155328A (en) | 1929-04-23 | 1931-05-18 | Process for the preparation of a water-soluble mixed aromatic-aliphatic diazoamino compound. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH155328A (en) |
-
1931
- 1931-05-18 CH CH155328D patent/CH155328A/en unknown
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