CH199091A - Process for the production of an intermediate product. - Google Patents
Process for the production of an intermediate product.Info
- Publication number
- CH199091A CH199091A CH199091DA CH199091A CH 199091 A CH199091 A CH 199091A CH 199091D A CH199091D A CH 199091DA CH 199091 A CH199091 A CH 199091A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- intermediate product
- condensation product
- chlorohydrate
- dyes
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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- napht.halin mit a, a'-Dichlorhydrin in Gegen wart eines Lösungsmittels erhitzt.
Das Kondensationsprodukt bildet in Form seines Chlorhydrates ein helles Pulver, das sich in Wasser löst und das zur Herstellung von Farbstoffen verwendet werden kann. <I>Beispiel:</I> 54 Gewichtsteile 1-Aminonaphthalin wer den mit 100 Volumteilen n-Butylalkohol und 49 Gewichtsteilen a, a'-Dichlorhydrin gemischt und die Mischung, zweckmässig unter Rühren und Luftabschluss, resp. Durchleiten eines inerten Gasstromes, z. B. gasförmiger Kohlen säure, zum Kochen erhitzt.
Man kocht so lange bis die alsbald beginnende Ausscheidung des Chlorhydrates des Kondensationsproduktes nicht mehr zunimmt, wofür man ca. 10-12 Stunden benötigt. Man lässt darauf unter Rüh- ren erkalten, verdünnt die Reaktionsmasse mit etwas Alkohol oder Aceton oder einem Gemisch beider und nutscht das erhaltene 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 Chlorhy- drates 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 which is valuable for the manufacture of dyes is obtained if 1-amino napht.halin is heated with a, a'-dichlorohydrin 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. <I> Example: </I> 54 parts by weight of 1-aminonaphthalene who mixed the with 100 parts by volume of n-butyl alcohol and 49 parts by weight of a, a'-dichlorohydrin and the mixture, suitably with stirring and exclusion of air, respectively. Passing through an inert gas stream, e.g. B. gaseous carbon acid, heated to a boil.
The mixture is boiled until the excretion of the chlorohydrate of the condensation product, which immediately begins, no longer increases, which takes about 10-12 hours. The mixture is then allowed to cool while stirring, the reaction mass 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 a 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 (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH199091T | 1936-09-16 | ||
CH195652T | 1936-09-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH199091A true CH199091A (en) | 1938-07-31 |
Family
ID=25722771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH199091D CH199091A (en) | 1936-09-16 | 1936-09-16 | Process for the production of an intermediate product. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH199091A (en) |
-
1936
- 1936-09-16 CH CH199091D patent/CH199091A/en unknown
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