CH143265A - 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
CH143265A
CH143265A CH143265DA CH143265A CH 143265 A CH143265 A CH 143265A CH 143265D A CH143265D A CH 143265DA CH 143265 A CH143265 A CH 143265A
Authority
CH
Switzerland
Prior art keywords
compound
preparation
ring system
hydrogenated ring
dimethylbutadiene
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 CH143265A publication Critical patent/CH143265A/en

Links

Classifications

    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fats And Perfumes (AREA)
  • Cosmetics (AREA)

Description

  

  Verfahren zur Darstellung einer     -Verbindung    mit hydriertem     Ringsystem.       Gegenstand dieses Patentes ist ein Ver  fahren zur Darstellung einer Verbindung mit  hydriertem Ringsystem, welches dadurch ge  kennzeichnet ist, dass man     Heptadien        (2.4)-          on    (6) von der Formel:     CHa-CH=CH-CH=          CH-CO-CHs    und     1.3-Dimethylbutadien    auf  einander einwirken lässt. Die neue Verbindung  soll zur Herstellung von     Farbstoffen,    pharma  zeutischen Produkten und Riechstoffen ver  wendet werden.  



  <I>Beispiel:</I>  165 Gewichtsteile     Heptadien    (2     .4)-on    (6)  und 1$5 Gewichtsteile     1.3-Dimethylbutadien     werden in einem Druckgefäss 6     Stunden    auf  <B>1600</B> C erhitzt. Die Reaktionsmasse wird  darauf der fraktionierten     Destillatior    unter  worfen. Unverändertes     1.3-Dimethylbutadien     wird bei gewöhnlichem Druck und unverän  dertes     Heptadien        (2.4)-on    (6) im Vakuum       abdestilliert.    Darauf erhält man eine Fraktion  vom Kochpunkt     iä    120   C bis 155   C.

   Bei  Wiederholung der Destillation siedet die    Hauptmenge zwischen Kochpunkt 15 122' C  bis     1321    C. Diese Fraktion stellt ein helles  schwach     grünstichig    gefärbtes, angenehm  riechendes Öl dar.  



  Mit     p-Biompherrylhydrazin    erhält man ein       Hydrazon,    das in farblosen Nadeln vom  Schmelzpunkt<B>179'</B> C kristallisiert.



  Process for the preparation of a compound with a hydrogenated ring system. The subject of this patent is a process for the preparation of a compound with a hydrogenated ring system, which is characterized in that one heptadiene (2.4) - one (6) of the formula: CHa-CH = CH-CH = CH-CO-CHs and 1,3-Dimethylbutadiene can act on each other. The new compound is to be used for the production of dyes, pharmaceutical products and fragrances.



  <I> Example: </I> 165 parts by weight of heptadiene (2 .4) -one (6) and 1 $ 5 parts by weight of 1,3-dimethylbutadiene are heated to <B> 1600 </B> C for 6 hours in a pressure vessel. The reaction mass is then subjected to the fractional distillation unit. Unchanged 1,3-dimethylbutadiene is distilled off in vacuo under normal pressure and unchanged heptadiene (2.4) -one (6). This gives a fraction from the boiling point between 120 C and 155 C.

   When the distillation is repeated, the main amount boils between the boiling point 15 122 ° C to 1321 C. This fraction is a light, slightly greenish-tinged oil with a pleasant smell.



  With p-biompherrylhydrazine, a hydrazone is obtained that crystallizes in colorless needles with a melting point of <B> 179 '</B> C.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung einer Verbin dung mit hydriertem Ringsystem, dadurch gekennzeichnet, dass man Heptadien (2.4)-on (6) und 1.3-Dimethylbutadien aufeinander einwirken lässt. Das so erhaltene Produkt stellt ein helles, schwach grünstichig gefärbtes; angenehm riechendes Öl dar. Mit p-Bromphenylhydr-azin erhält man ein Hydrazon, das in farblosen Nadeln vom Schmelzpunkt<B>1790</B> C kristallisiert. PATENT CLAIM: Process for the preparation of a compound with a hydrogenated ring system, characterized in that heptadiene (2.4) -one (6) and 1,3-dimethylbutadiene are allowed to act on one another. The product obtained in this way is light-colored, slightly greenish in color; oil with a pleasant smell. With p-bromophenylhydrazine, a hydrazone is obtained which crystallizes in colorless needles with a melting point of <B> 1790 </B> C.
CH143265D 1929-07-15 1929-07-15 Process for the preparation of a compound with a hydrogenated ring system. CH143265A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH143265T 1929-07-15
CH141523T 1930-08-15

Publications (1)

Publication Number Publication Date
CH143265A true CH143265A (en) 1930-10-31

Family

ID=25713731

Family Applications (1)

Application Number Title Priority Date Filing Date
CH143265D CH143265A (en) 1929-07-15 1929-07-15 Process for the preparation of a compound with a hydrogenated ring system.

Country Status (1)

Country Link
CH (1) CH143265A (en)

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