CH143247A - Process for the preparation of a compound with a hydrogenated ring system. - Google Patents

Process for the preparation of a compound with a hydrogenated ring system.

Info

Publication number
CH143247A
CH143247A CH143247DA CH143247A CH 143247 A CH143247 A CH 143247A CH 143247D A CH143247D A CH 143247DA CH 143247 A CH143247 A CH 143247A
Authority
CH
Switzerland
Prior art keywords
compound
preparation
ring system
hydrogenated ring
acrolein
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH143247A publication Critical patent/CH143247A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C47/00—Compounds having —CHO groups
    • C07C47/38—Unsaturated compounds having —CHO groups bound to carbon atoms of rings other than six—membered aromatic rings
    • C07C47/42—Unsaturated compounds having —CHO groups bound to carbon atoms of rings other than six—membered aromatic rings with a six-membered ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
    • C07C45/69—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by addition to carbon-to-carbon double or triple bonds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Darstellung einer Verbindung mit hydriertem     Ringsystem.       Gegenstand dieses Zusatzpatentes ist ein  Verfahren zur Darstellung einer Verbindung  von folgender Konstitution  
EMI0001.0002     
    welches dadurch gekennzeichnet ist, dass man  1     .4-Dimethyl-butadieii    mit     Akrolein    konden  siert. Die neue Verbindung soll zur Herstel  lung von Farbstoffen, pharmazeutischen Pro  dukten und Riechstoffen verwendet werden.  <I>Beispiel:</I>  82 Gewichtsteile     1.4-Dimethyl-butadien     und 56 Gewichtsteile     Akrolein    werden in  einem Druckgefäss 1 Stunde auf<B>1000</B> erhitzt.  Das Reaktionsgemisch wird darauf sofort der  Destillation unterworfen.

   Nach einem Vorlauf  von unverändertem Kohlenwasserstoff und       Akrolein,    den man bei gewöhnlichem Druck       abdestilliert,    erhält man eine Fraktion, die    bei einem Druck von<B>19</B>     mai    zwischen 80"  und 105 0 siedet. Nach zweimaliger Wieder  holung der Destillation erhält man eine ein  heitliche Fraktion- vom Siedepunkt     KP.        10,5     70-710. Sie stellt ein wasserhelles, beweg  liches Öl dar.



  Process for the preparation of a compound with a hydrogenated ring system. The subject of this additional patent is a method for the preparation of a compound of the following constitution
EMI0001.0002
    which is characterized in that 1 .4-Dimethyl-butadieii is condensed with acrolein. The new compound will be used to manufacture dyes, pharmaceutical products and fragrances. <I> Example: </I> 82 parts by weight 1,4-dimethyl-butadiene and 56 parts by weight acrolein are heated to <B> 1000 </B> for 1 hour in a pressure vessel. The reaction mixture is then immediately subjected to distillation.

   After a first run of unchanged hydrocarbon and acrolein, which is distilled off at normal pressure, a fraction is obtained which boils between 80 "and 105 0 at a pressure of 19 may. After repeating the distillation twice a uniform fraction - boiling point KP.10.5 70-710. It represents a water-white, mobile oil.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung einer Verbin dung von folgender Konstitution EMI0001.0013 dadurch gekennzeichnet, dass man 1. 4-Di- methyl-butadien mit Akrolein kondensiert. Der Aldehyd siedet bei Kp. io,s 70--710 und stellt ein wasserhelles, bewegliches Ö1 dar. PATENT CLAIM: Method for representing a compound of the following constitution EMI0001.0013 characterized in that 1,4-dimethyl-butadiene is condensed with acrolein. The aldehyde boils at bp. Io, s 70--710 and is a water-white, mobile oil.
CH143247D 1929-01-07 1929-01-07 Process for the preparation of a compound with a hydrogenated ring system. CH143247A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH143247T 1929-01-07
CH141523T 1930-08-15

Publications (1)

Publication Number Publication Date
CH143247A true CH143247A (en) 1930-10-31

Family

ID=25713713

Family Applications (1)

Application Number Title Priority Date Filing Date
CH143247D CH143247A (en) 1929-01-07 1929-01-07 Process for the preparation of a compound with a hydrogenated ring system.

Country Status (1)

Country Link
CH (1) CH143247A (en)

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