CH159043A - Process for the preparation of a nitrogen-containing, cyclic ketone. - Google Patents
Process for the preparation of a nitrogen-containing, cyclic ketone.Info
- Publication number
- CH159043A CH159043A CH159043DA CH159043A CH 159043 A CH159043 A CH 159043A CH 159043D A CH159043D A CH 159043DA CH 159043 A CH159043 A CH 159043A
- Authority
- CH
- Switzerland
- Prior art keywords
- nitrogen
- preparation
- cyclic ketone
- temperatures
- weight
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines stickstoffhaltigen, cyelischen hetons. Gegenstand dieses Zusatzpatentes ist ein Verfahren zur Darstellung eines stickstoff haltigen, cyclischen Ketons, das- dadurch ge kennzeichnet ist, dass man das Natriumsalz der Oyanessigsäure zuerst bei niedriger, dann bei höherer Temperatur in Gegenwart eines kondensierend wirkenden Metallchlorids auf Acenaphthen einwirken lässt.
<I>Beispiel:</I> In ein geschmolzenes Gemisch von 255 Gewichtsteilen Aluminiumchlorid, 30 Ge wichtsteilen Natriumchlorid, 21 Gewichts teilen Kaliumchlorid und 9 Gewichtsteilen Natriumfluorid werden bei 80 C 30 Gewichts teile Acenaphten gegeben und 24 Gewichts teile cyanessigsaures Natrium eingetragen. 1VIan erwärmt 1/2 Stunde auf eine Temperatur von 70-140 C, zweckmässig 80 , und darauf 11/s Stunden auf eine Temperatur von 1"00 bis <B>1900</B> C, zweckmässig<B>1600</B> C. Nach dem Zersetzen mit Eiswasser wird abgesaugt und mit wenig Wasser gewaschen.
Der Rück stand wird mit heissem Wasser unter Zusatz von etwas Schwefelsäure ausgezogen und aus dem Filtrat durch Zusatz von konzentrierter Salzsäure oder Natriumchloridlösung das Kon densationsprodukt als salzsaures Monoketimid des peri-Acenaphthindandions in befriedigen der Ausbeute erhalten.
Process for the production of a nitrogenous, cyelic hetone. The subject of this additional patent is a process for the preparation of a nitrogen-containing, cyclic ketone, which is characterized in that the sodium salt of oyanacetic acid is allowed to act on acenaphthene first at a lower temperature, then at a higher temperature in the presence of a condensing metal chloride.
<I> Example: </I> In a molten mixture of 255 parts by weight of aluminum chloride, 30 parts by weight of sodium chloride, 21 parts by weight of potassium chloride and 9 parts by weight of sodium fluoride, 30 parts by weight of acenaphthene are added at 80 C and 24 parts by weight of sodium cyanoacetic acid are added. 1VIan heats 1/2 hour to a temperature of 70-140 C, expediently 80, and then 11 / s hours to a temperature of 1.00 to 1900 C, expediently 1600 > C. After decomposition with ice water, it is suctioned off and washed with a little water.
The residue was extracted with hot water with the addition of a little sulfuric acid and the condensation product obtained from the filtrate as hydrochloric acid monoketimide of peri-acenaphthindanedione in satisfactory yield was obtained by adding concentrated hydrochloric acid or sodium chloride solution.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE159043X | 1929-10-17 | ||
| CH152610T | 1930-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH159043A true CH159043A (en) | 1932-12-15 |
Family
ID=25716002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH159043D CH159043A (en) | 1929-10-17 | 1930-10-15 | Process for the preparation of a nitrogen-containing, cyclic ketone. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH159043A (en) |
-
1930
- 1930-10-15 CH CH159043D patent/CH159043A/en unknown
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