AT55441B - Process for the preparation of salts of the high molecular weight dibromo- and diiodo-fatty acids. - Google Patents
Process for the preparation of salts of the high molecular weight dibromo- and diiodo-fatty acids.Info
- Publication number
- AT55441B AT55441B AT55441DA AT55441B AT 55441 B AT55441 B AT 55441B AT 55441D A AT55441D A AT 55441DA AT 55441 B AT55441 B AT 55441B
- Authority
- AT
- Austria
- Prior art keywords
- salts
- molecular weight
- fatty acids
- dibromo
- high molecular
- Prior art date
Links
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
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Essigäther vermischt, wodurch das Magnesiumsalz der Dibrombehensäure ausgefällt wird. Man filtriert, wäscht mit Alkohol nach und trocknet im Vakuum. Das so erhaltene Magnesiumsalz enthält 30 7 Prozent Br.
In analoger Weise erfolgt die Anlagerung des Broms an andere Salze ungesättigter hoch- molekularer Fettsäuren, wie z. B. an das Kalium-oder Zinksalz der Eruka-bzw. Behenolsäure.
Beispiel 2 : 26 Teile behenolsaures Blei werden in trockenem Zustande mit 15 Teilen gepulvertem Jod und 0'5 Teilen Eisenjodür gut gemischt und unter Rühren langsam auf 70 bis 800 erwärmt, wobei die Mischung nach und nach schmilzt und eine gelbliche Farbe annimmt. Nach etwa zwei Stunden ist die Reaktion beendet. Man lässt erkalten, löst dann die Masse in
EMI2.1
mit Natriumthiosulfat, destilliert den Tetrachlorkohlenstoff ab und reinigt den Rückstand durch UmkriRtallisieren aus Essigester. Das in farblosen Kristallen resultierende Bleisalz des Behenol- säuredijodids besitzt einen Jodgehalt von 36'2 Prozent.
Beis pie 1 3 : 34'5 Teile des Magnesiumsalzes der Behenolsäure werden in 170 Teilen Tetrachlorkohlenstoff gelöst. Zur Lösung fügt man 25 Teile Jod und 0'5 Teile Jodeisen und rührt (lie Mischung zunächst einige Zeit bei gewöhnlicher Temperatur. Hierauf wird noch während etwa zehn Stunden unter Rückfluss erwärmt. Die Aufarbeitung der Reaktionsmasse erfolgt wie in vorstehenden Beispielen. Durch Umkristallisieren aus Essigäther erhält man das Magnesiumsalz
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man unter im übrigen gleichbleibenden Bedingungen zu den entsprechenden Salzen der Dijodide.
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Acetic ether mixed, whereby the magnesium salt of dibromomehenic acid is precipitated. It is filtered, washed with alcohol and dried in vacuo. The magnesium salt obtained in this way contains 30 7 percent Br.
The addition of the bromine to other salts of unsaturated high molecular weight fatty acids, such as B. to the potassium or zinc salt of Eruka or. Behenolic acid.
Example 2: 26 parts of behenolic acid lead are mixed well in the dry state with 15 parts of powdered iodine and 0.5 parts of iron iodine and slowly heated to 70 to 800 with stirring, the mixture gradually melting and taking on a yellowish color. The reaction has ended after about two hours. Allow to cool, then dissolve the mass in
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with sodium thiosulphate, the carbon tetrachloride is distilled off and the residue is purified by recrystallization from ethyl acetate. The lead salt of behenolic acid iodide, which results in colorless crystals, has an iodine content of 36.2 percent.
Beis pie 1 3: 34.5 parts of the magnesium salt of behenolic acid are dissolved in 170 parts of carbon tetrachloride. 25 parts of iodine and 0.5 parts of iodine iron are added to the solution and the mixture is stirred for some time at normal temperature. The mixture is then refluxed for about ten hours. The reaction mass is worked up as in the preceding examples. By recrystallization from acetic ether one obtains the magnesium salt
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one under otherwise constant conditions to the corresponding salts of the diiodides.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE55441X | 1909-12-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT55441B true AT55441B (en) | 1912-09-25 |
Family
ID=5628396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT55441D AT55441B (en) | 1909-12-24 | 1910-12-09 | Process for the preparation of salts of the high molecular weight dibromo- and diiodo-fatty acids. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT55441B (en) |
-
1910
- 1910-12-09 AT AT55441D patent/AT55441B/en active
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