CH195652A - Process for the production of an intermediate product. - Google Patents
Process for the production of an intermediate product.Info
- Publication number
- CH195652A CH195652A CH195652DA CH195652A CH 195652 A CH195652 A CH 195652A CH 195652D A CH195652D A CH 195652DA CH 195652 A CH195652 A CH 195652A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- intermediate product
- chlorohydrate
- mixture
- condensation product
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C215/00—Compounds containing amino and hydroxy groups bound to the same carbon skeleton
- C07C215/02—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton
- C07C215/04—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being saturated
- C07C215/06—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being saturated and acyclic
- C07C215/16—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being saturated and acyclic the nitrogen atom of the amino group being further bound to carbon atoms of six-membered aromatic rings
Description
Verfahren zur Herstellung eines Zwischenproduktes. Es wurde gefunden, dass man ein zur Her stellung von Farbstoffen wertvolles Konden- sationsprodukt erhält, wenn man 1-Amino-5- oxynaphthalin mit a,a'-@d'ichlorhydrin, zweck mässig in Gegenwart eines Lösungsmittels, er- hitzt.
Das Kondensationsprodukt bildet in Form seines Chlorhydrates ein helles Pulver, das sich in Wasser löst und das zur Herstellung von Farbstoffen verwendet werden kann.
Beispiel: 60 Gewichtsteile 1-Amino-5-oxynaphtha- lin werden mit 100 Volumteilen n - Butyl- alkohol und -49 Gewichtsteilen. a,ä -Dichlor- hydrin gemischt und die Mischung, zweck mässig unter Rühren und Luftabschluss, re spektive Durchleiten eines inerten Gasstro mes, z. B. gasförmiger Kohlensäure, zum Kochen erhitzt.
Man kocht solange, bis die alsbald beginnende Ausscheidung des Chlor- hydrates des Kondensatäonaproiduktes nicht mehr zunimmt, wofür man zirka 10 bis 12 Munden benötigt. Man lässt darauf unter Rühren erkalten, verdünnt die Reaktions- masse mit etwas Alkohol oder Aceton oder einem Gemisch beider und nutscht das er haltene Chlorhydrat ab.
Man kann -das Kondensationsprodukt als Chlorhydrat direkt zur Herstellung von Farb stoffen verwenden; man kann es aber auch aus der wässerigen Lösung seines Chlor- hydrates durch Zugabe von Neutralisations- mitteln, wie z. B. Natriumacetat, ausscheiden.
Process for the production of an intermediate product. It has been found that a condensation product useful for the production of dyes is obtained if 1-amino-5-oxynaphthalene is heated with a, a '- @ d'ichlorohydrin, expediently in the presence of a solvent.
In the form of its chlorohydrate, the condensation product forms a light-colored powder that dissolves in water and which can be used to produce dyes.
Example: 60 parts by weight of 1-amino-5-oxynaphthalene are mixed with 100 parts by volume of n-butyl alcohol and -49 parts by weight. a, ä -Dichlorohydrin mixed and the mixture, expediently with stirring and exclusion of air, re spective passage of an inert Gasstro mes, z. B. gaseous carbonic acid heated to a boil.
The mixture is boiled until the excretion of the chlorohydrate of the condensate aproids, which immediately begins, no longer increases, for which about 10 to 12 mouths are required. The mixture is then allowed to cool while stirring, the reaction mixture is diluted with a little alcohol or acetone or a mixture of both and the hydrochloride obtained is filtered off with suction.
You can use the condensation product as hydrochloride directly for the production of dyes; but it can also be obtained from the aqueous solution of its chlorohydrate by adding neutralizing agents, such as. B. sodium acetate, excrete.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH195652T | 1936-09-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH195652A true CH195652A (en) | 1938-02-15 |
Family
ID=4440044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH195652D CH195652A (en) | 1936-09-16 | 1936-09-16 | Process for the production of an intermediate product. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH195652A (en) |
-
1936
- 1936-09-16 CH CH195652D patent/CH195652A/en unknown
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