CH143262A - 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
CH143262A
CH143262A CH143262DA CH143262A CH 143262 A CH143262 A CH 143262A CH 143262D A CH143262D A CH 143262DA CH 143262 A CH143262 A CH 143262A
Authority
CH
Switzerland
Prior art keywords
preparation
compound
ring system
hydrogenated ring
hydrogenated
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 CH143262A publication Critical patent/CH143262A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (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 eines hydrierten       Tetramethyl-anthrachinons,    welches dadurch  gekennzeichnet ist, dass man     Benzochinon    mit  1 .     3-Dimethyl-butadien    kondensiert. Die neue  Verbindung soll zur Herstellung von Farb  stoffen Verwendung finden.  



  <I>Beispiel:</I>       i;    Gewichtsteile     Benzochinon    werden mit  5 Volumenteilen 1     .3-Dimethyl-butadien    eine  Stunde auf dem Wasserbad am     Rückfluss-          kühler    erhitzt. Nach dem Erkalten kristalli  siert das neue Produkt aus und wird durch  Absaugen und Nachwaschen mit     Petroläther     isoliert. Es schmilzt roh bei     186-1881    C.    Aus Eisessig umkristallisiert, erhält man die  Verbindung in weissen Nadeln vom Schmelz  punkt 194   C.



  Method for representing a connection with; hydrogenated ring system. The subject of this additional patent is a process for the preparation of a hydrogenated tetramethyl-anthraquinone, which is characterized in that benzoquinone with 1. 3-dimethyl-butadiene condensed. The new compound will be used to manufacture dyes.



  <I> Example: </I> i; Parts by weight of benzoquinone are heated with 5 parts by volume of 1,3-dimethylbutadiene for one hour on a water bath at a reflux condenser. After cooling, the new product crystallizes out and is isolated by suction and washing with petroleum ether. It melts raw at 186-1881 C. Recrystallized from glacial acetic acid, the compound is obtained in white needles with a melting point of 194 C.

Claims (1)

PATEIVTANSPIi,UCH: Verfahren zur Darstellung eines hydrierten Tetramethyl-anthrachinons, welches dadurch gekennzeichnet ist, dass man Benzochinon mit 1 .3-Dimethyl-butadien kondensiert. Durch Umkristallisieren aus Eisessig er hält man die neue Verbindung in weissen Nadeln vom Schmelzpunkt 1940 C. PATEIVTANSPIi, UCH: Process for the preparation of a hydrogenated tetramethyl-anthraquinone, which is characterized in that benzoquinone is condensed with 1,3-dimethyl-butadiene. By recrystallizing from glacial acetic acid, the new compound is kept in white needles with a melting point of 1940 C.
CH143262D 1929-01-21 1929-01-21 Process for the preparation of a compound with a hydrogenated ring system. CH143262A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH143262T 1929-01-21
CH141523T 1930-08-15

Publications (1)

Publication Number Publication Date
CH143262A true CH143262A (en) 1930-10-31

Family

ID=25713728

Family Applications (1)

Application Number Title Priority Date Filing Date
CH143262D CH143262A (en) 1929-01-21 1929-01-21 Process for the preparation of a compound with a hydrogenated ring system.

Country Status (1)

Country Link
CH (1) CH143262A (en)

Similar Documents

Publication Publication Date Title
CH143262A (en) Process for the preparation of a compound with a hydrogenated ring system.
CH143261A (en) Process for the preparation of a compound with a hydrogenated ring system.
CH235231A (en) Process for the preparation of 3&#39;-methyl-cyclopentane-1 &#39;, 5-spiro-1-methyl-2,4,6-triketo-hexahydropyrimidine.
CH167377A (en) Process for the preparation of 1-acetylamino-2,4-dimethylbenzene-5-sulfonic acid chloride.
CH143263A (en) Process for the preparation of a compound with a hydrogenated ring system.
CH161737A (en) Process for the preparation of 2-perhydrocarbazylethylaminopyridine.
CH127702A (en) Process for the preparation of a ring ketone of the aromatic series.
CH127927A (en) Process for the production of a new anthraquinone derivative.
CH143259A (en) Process for the preparation of a compound with a hydrogenated ring system.
CH127694A (en) Process for the preparation of a mixture of two isomeric ring ketones of the aromatic series.
CH125212A (en) Process for the preparation of phthaloyl-2-3-thionaphthene.
CH159941A (en) Process for the preparation of tribromoethyl alcohol.
CH143232A (en) Process for the preparation of a compound with a hydrogenated ring system.
CH143224A (en) Process for the preparation of a compound with a hydrogenated ring system.
CH143222A (en) Process for the preparation of a compound with a hydrogenated ring system.
CH153386A (en) Process for the preparation of a nitrogenous compound.
CH201506A (en) Process for the preparation of a quaternary aminobenzylacylamine.
CH146433A (en) Process for the preparation of 2.3-aminonaphthoic acid methylanilide.
CH201508A (en) Process for the preparation of a quaternary aminobenzylacylamine.
CH190546A (en) Process for the preparation of 5-benzoylamino-m-phenanthroline.
CH201505A (en) Process for the preparation of a quaternary aminobenzylacylamine.
CH143237A (en) Process for the preparation of a compound with a hydrogenated ring system.
CH143260A (en) Process for the preparation of a compound with a hydrogenated ring system.
CH139373A (en) Process for the preparation of 1,4-Dioxy-6-methyl-8-chlorobenzo-thiophanthrenequinone.
CH127701A (en) Process for the preparation of a ring ketone of the aromatic series.