AT57055B - Process for the representation of honor and rare homologues. - Google Patents
Process for the representation of honor and rare homologues.Info
- Publication number
- AT57055B AT57055B AT57055DA AT57055B AT 57055 B AT57055 B AT 57055B AT 57055D A AT57055D A AT 57055DA AT 57055 B AT57055 B AT 57055B
- Authority
- AT
- Austria
- Prior art keywords
- homologues
- rare
- representation
- honor
- ring
- Prior art date
Links
Landscapes
- Cell Electrode Carriers And Collectors (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
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Verfahren zur Darstellung von Erythren und selnen Homologen.
Es wurde gefunden, dass man Doppelolefine, wie Erythren und seine Homologen, in sehr einfacher Weise dadurch erhalten kann, dass man Zyldohexanol und seine Homologen
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Im Chem. Centralblatt 1906 (2), S. 87, ist die Einwirkung von Tonerde auf verschiedene ringförmige Kohlenwasserstoffe beschrieben. Bei etwa 3500 findet dabei eine Dehydrogenisation statt. So erhält man aus Menthol Menthen, aus Borneol Bornylen und aus Hexahydrophenol Tetrahydrohenzol. Zum Unterschied hievon worden nach dem Verfahren der vorliegenden Erfindung Zyklohexanol oder seine Homologen auf höhere Temperatur (etwa 500 bis 600 C) erhitzt, wobei man der Reaktion unter an@eram auch Tonerde zusetzen kann. Ilinhei verläuft die Reaktion in ganz anderem Sinne nach dein erwähnten Verfahren. Es tritt keine Wasserabspaltung unter Erhaltung d@. Ringes ein, sondern der Ring wird aufgespalten, wobei das Molekül in mehrere Teile zerfällt.
Diese Aufspaltung des Ringes ist überraschend, da man bei den angewandten Bedingungen eine völlige Zerstörung des Moleküls erwarten musste.
Beispiel 1.
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enthalten Erythren in guter Ausbeute. Beispiel 2.
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sich durch einfache Destillation reichliche Mengen von Isopren isolieren lassen.
Beispiel3.
Ersetzt man im Beispiel 1 das Zyklohexanol durch Oxymethylzyklohexanol der Formel :
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und \erfattrt sonst analog, nur dass mas das Rohr mit gewachsener Tonerde füllt, so erhält man Isopren in guter Ausbeute.
Das Verfahren liefert analoge Ergehnisse bei Anwendung anderer als der in df'n BeispielengenauntenZyklohexanolderivate.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
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Process for the representation of erythrene and rare homologues.
It has been found that double olefins such as erythren and its homologues can be obtained in a very simple manner by using cyldohexanol and its homologues
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In Chem. Centralblatt 1906 (2), p. 87, the action of alumina on various ring-shaped hydrocarbons is described. At around 3500, dehydrogenation takes place. Menthol is obtained from menthol, bornylene from borneol and tetrahydrohenzene from hexahydrophenol. In contrast to this, according to the process of the present invention, cyclohexanol or its homologues were heated to a higher temperature (about 500 to 600 ° C.), and alumina can also be added to the reaction under an @ eram. Ilinhei, the reaction proceeds in a completely different sense according to your mentioned procedure. There is no elimination of water while maintaining d @. Ring, but the ring is split open, whereby the molecule breaks up into several parts.
This splitting of the ring is surprising, since one had to expect complete destruction of the molecule under the conditions used.
Example 1.
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contain erythrene in good yield. Example 2.
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copious amounts of isoprene can be isolated by simple distillation.
Example3.
If, in example 1, the cyclohexanol is replaced by oxymethylcyclohexanol of the formula:
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and otherwise analogously, except that if the tube is filled with grown clay, isoprene is obtained in good yield.
The process gives analogous results when using other cyclohexanol derivatives than those mentioned in the examples.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE57055X | 1910-03-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT57055B true AT57055B (en) | 1913-01-10 |
Family
ID=5629009
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT57055D AT57055B (en) | 1910-03-11 | 1911-02-11 | Process for the representation of honor and rare homologues. |
AT66529D AT66529B (en) | 1910-03-11 | 1913-06-19 | Process for the representation of erythrene. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT66529D AT66529B (en) | 1910-03-11 | 1913-06-19 | Process for the representation of erythrene. |
Country Status (1)
Country | Link |
---|---|
AT (2) | AT57055B (en) |
-
1911
- 1911-02-11 AT AT57055D patent/AT57055B/en active
-
1913
- 1913-06-19 AT AT66529D patent/AT66529B/en active
Also Published As
Publication number | Publication date |
---|---|
AT66529B (en) | 1914-09-10 |
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