AT57055B - Process for the representation of honor and rare homologues. - Google Patents

Process for the representation of honor and rare homologues.

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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
Application number
Other languages
German (de)
Original Assignee
Farbenfab Vorm Bayer F & Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT57055B publication Critical patent/AT57055B/en

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  • 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

  

   <Desc/Clms Page number 1> 
 



  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 
 EMI1.1 
 
 EMI1.2 
 
 EMI1.3 
 



   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. 
 EMI1.4 
 enthalten Erythren in guter Ausbeute.   Beispiel 2.   
 EMI1.5 
 sich durch einfache Destillation reichliche Mengen von Isopren isolieren lassen. 



   Beispiel3. 



   Ersetzt man im Beispiel 1 das Zyklohexanol durch Oxymethylzyklohexanol der Formel : 
 EMI1.6 
 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**.



   <Desc / Clms Page number 1>
 



  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
 EMI1.1
 
 EMI1.2
 
 EMI1.3
 



   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.
 EMI1.4
 contain erythrene in good yield. Example 2.
 EMI1.5
 copious amounts of isoprene can be isolated by simple distillation.



   Example3.



   If, in example 1, the cyclohexanol is replaced by oxymethylcyclohexanol of the formula:
 EMI1.6
 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)

PATENT ANSPRUCH : EMI1.7 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: EMI1.7 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT57055D 1910-03-11 1911-02-11 Process for the representation of honor and rare homologues. AT57055B (en)

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)

Also Published As

Publication number Publication date
AT66529B (en) 1914-09-10

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