DE608315C - Process for the representation of alkyl and aryl parteins - Google Patents
Process for the representation of alkyl and aryl parteinsInfo
- Publication number
- DE608315C DE608315C DEW93988D DEW0093988D DE608315C DE 608315 C DE608315 C DE 608315C DE W93988 D DEW93988 D DE W93988D DE W0093988 D DEW0093988 D DE W0093988D DE 608315 C DE608315 C DE 608315C
- Authority
- DE
- Germany
- Prior art keywords
- alkyl
- aryl
- parteins
- representation
- lupanine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/22—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed systems contains four or more hetero rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung von Alkyl- und Arylspärteinen Zur Darstellung von Alkyl- und Arylsparteinen wird gemäß den unten angeführten Beispielen Lupanin in ätherischer Lösung mit Hilfe der entsprechenden Halogenalkyle in der üblichen Weise grignardiert, wobei das Grignardreagens im überschuß angewandt wird.Process for the representation of alkyl and aryl spar stones For representation of alkyl and aryl parteins is lupanine according to the examples below in ethereal solution with the help of the corresponding haloalkyls in the usual way Grignarded manner, the Grignard reagent being used in excess.
Trotz zahlreicher Bemühungen früherer Bearbeiter ist es bisher nicht gelungen, die Ketongruppe im Lupanin so zur Umsetzung zu bringen, daß praktisch verwertbare Produkte erhalten werden. Unter den von uns angegebenen Bedingungen erfolgt die Umsetzung der Ketongruppe mit Organoinagnesiumverbindungen leicht, sie führt über den zunächst gebildeten Alkohol unter Wasseraustritt zu den entsprechenden Dehydroverbindungen, welch letztere bei derkatalytischen Hydrierung die eingangs erwähnten substituierten Sparteine in 6o- bis 7oo/oiger Ausbeute liefern. Beispiel i 13g Lupanin in gesättigter ätherischer Lösung werden unter kräftigem Rühren langsam zu einer Methylmagnesiumjodidlösung zugegeben, wobei die letztere die zweifach molare Menge an Grignardreagens, bezogen auf das Lupanin, enthält. Zur Vervollständigung der Umsetzung wird das Reaktionsgemisch etwa % Stunde zum Sieden erhitzt und dann mehrere Stunden stehengelassen.Despite numerous efforts by previous editors, it is not yet managed to implement the ketone group in lupanine in such a way that practical usable products are obtained. Under the conditions specified by us the reaction of the ketone group with organoinagnesium compounds is easy, they leads to the corresponding alcohol via the alcohol initially formed with the escape of water Dehydro compounds, the latter in the case of catalytic hydrogenation provide the substituted sparteine mentioned in 6o to 7oo per cent yield. example i 13g of lupanine in saturated ethereal solution are slowly stirred with vigorous stirring added to a methylmagnesium iodide solution, the latter being twice the molar Amount of Grignard reagent, based on the lupanine. To complete the reaction, the reaction mixture is heated to boiling for about ½ hour and then left for several hours.
Das in der üblichen Weise aufgearbeitete Reaktionsprodukt ist von honigkonsistenzartiger Beschaffenheit. Es enthält meist noch geringe Mengen nicht umgesetztes Lupanin, die sich leicht abtrennen lassen. Die erhaltene Rohbase wird im Vakuum destilliert und das Destillat anschließend katalytisch hydriert. Das Methylspartein stellt ein farbloses Öl dar, das langsam kristallinisch erstarrt. Ausbeute: etwa 8 g.The reaction product worked up in the usual manner is from honey-like consistency. It usually does not contain small amounts converted lupanine, which can be easily separated. The raw base obtained is distilled in vacuo and the distillate then catalytically hydrogenated. The methyl sparteine is a colorless oil that slowly solidifies in a crystalline manner. Yield: about 8 g.
Eigenschaften: Das Methylspartein ist ausgezeichnet durch große Beständigkeit und eine auffallend leichte Löslichkeit in allen bekannten organischen Lösungsmitteln, wie in Äther, Alkohol, Essigester, Chloroform, Tetrachlorkohlenstoff, Benzol, Petroläther, Ligroin u. a. und eine ausgesprocheneWasserunlöslichkeit. Schmelzpunkt der reinen Base: q.8° aus Aceton. Das Methylspartein liefert eine Reihe beständiger Salze, wie z. B. Hydrobromid und Sulfat. Beispiel a In ähnlicher Weise, wie im. Beispiel i angeführt, wird in dem dort angegebenen Mengenverhältnis Lupanin mit Äthylmagnesiumbromid zur Umsetzung gebracht. Aus 2o g Lupanin werden 16,5 g reines destilliertes Äthylspartein - erhalten. Ausbeute: etwa 70 %.Properties: The methyl sparteine is distinguished by its great resistance and a remarkably easy solubility in all known organic solvents, as in ether, alcohol, ethyl acetate, chloroform, carbon tetrachloride, benzene, petroleum ether, Ligroin et al. and pronounced insolubility in water. Melting point of the pure Base: q.8 ° from acetone. The methyl parteine provides a number of stable salts, such as B. hydrobromide and sulfate. Example a In a similar way to the. example i is given in the proportions given there lupanine with ethylmagnesium bromide brought to implementation. 16.5 g of pure distilled lupanine are obtained from 20 g of lupanine Ethyl sparteine - preserved. Yield: about 70%.
Eigenschaften wie oben. Schmelzpunkt des Äthylsparteins: 4o°. Auch das Äthylspartein bildet leicht Salze. Beispiel 3 Ebenso wie bei 1 und 2 wird Lupanin mit Phenylmagnesiumbromid im Verhältnis von 1 Mol Lupanin auf 2 Mol Grignardreagens zur Umsetzung gebracht.Properties as above. Melting point of ethyl sparteine: 40 °. Even the ethyl parteine easily forms salts. Example 3 As with 1 and 2, lupanine becomes with phenyl magnesium bromide in the ratio of 1 mole of lupanine to 2 moles of Grignard reagent brought to implementation.
5 g bttganin liefern 5 g reines Phenylspartein. Die Eigenschaften sind die gleichen wie bei 1 und 2. Schmelzpunkt des reinen Phenylsparteins: 13o°. Auch das Phenylspartein gibt gut kristallisierende Salze. Die Alkyl- und einfachen und substituierten Arylsparteine sollen für sich allein oder in Verbindung mit anderen Stoffen gemäß ihrer physiologischen Wirksamkeit Verwendung finden.5 g of bttganin provide 5 g of pure phenylsparteine. The properties are the same as for 1 and 2. Melting point of pure phenyl sparteine: 130 °. The phenyl sparteine also gives well crystallizing salts. The alkyl and simple and substituted aryl parteins are intended to be used alone or in conjunction with others Find substances according to their physiological effectiveness.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW93988D DE608315C (en) | 1934-03-28 | 1934-03-28 | Process for the representation of alkyl and aryl parteins |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW93988D DE608315C (en) | 1934-03-28 | 1934-03-28 | Process for the representation of alkyl and aryl parteins |
Publications (1)
Publication Number | Publication Date |
---|---|
DE608315C true DE608315C (en) | 1935-01-21 |
Family
ID=7614009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEW93988D Expired DE608315C (en) | 1934-03-28 | 1934-03-28 | Process for the representation of alkyl and aryl parteins |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE608315C (en) |
-
1934
- 1934-03-28 DE DEW93988D patent/DE608315C/en not_active Expired
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