CH127692A - Process for the preparation of a mixture of two isomeric ring ketones. - Google Patents

Process for the preparation of a mixture of two isomeric ring ketones.

Info

Publication number
CH127692A
CH127692A CH127692DA CH127692A CH 127692 A CH127692 A CH 127692A CH 127692D A CH127692D A CH 127692DA CH 127692 A CH127692 A CH 127692A
Authority
CH
Switzerland
Prior art keywords
mixture
preparation
ring ketones
isomeric
isomeric ring
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 CH127692A publication Critical patent/CH127692A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Darstellung eines Gemisches zweier     isomerer        Ringketone.       Gegenstand dieses Patentes ist ein Ver  fahren zur Darstellung eines Gemisches von  zwei     Ringketonen    der nachstehenden Formeln:  
EMI0001.0004     
    welches dadurch gekennzeichnet ist, dass man       P-Chlorpropionsäure,        Toluol    und Aluminium  chlorid bei höherer Temperatur aufeinander  einwirken lässt.  



  Das Produkt soll zur Herstellung von       Farbstoffen    Verwendung     finden.     



       Beispiel:     Eine Lösung von 90 Gewichtsteilen     Toluol     und 11 Gewichtsteilen     ,Q-Chlorpropionsäure     wird in kleinen Anteilen mit 27 Gewichts  teilen Aluminiumchlorid versetzt, die Tempe  ratur wird dann innerhalb einer Stunde bis  zum Sieden des     Toluols    gesteigert und hier  bei zwei Stunden erhalten.

   Nach dem Zer-    setzen mit Eis und Salzsäure wird     das-Re-          aktionsgemisch    einer     Wasserdampfdestillätion     unterworfen, bei der anfangs fast nur     Toluol,     später ein flüssiges Gemisch von zwei     iso-          meren        Ringketonen    von nachfolgenden For  meln     überLyeht     
EMI0001.0021     
    Das erhaltene Gemisch ist flüssig und siedet  der Hauptmenge nach bei 260-270 .



  Process for the preparation of a mixture of two isomeric ring ketones. The subject of this patent is a process for the preparation of a mixture of two ring ketones of the following formulas:
EMI0001.0004
    which is characterized in that P-chloropropionic acid, toluene and aluminum chloride are allowed to act on one another at a higher temperature.



  The product is intended to be used for the manufacture of dyes.



       Example: A solution of 90 parts by weight of toluene and 11 parts by weight of Q-chloropropionic acid is mixed in small proportions with 27 parts by weight of aluminum chloride, the temperature is then increased within one hour to the boiling point of the toluene and obtained here for two hours.

   After decomposition with ice and hydrochloric acid, the reaction mixture is subjected to steam distillation, in which initially almost only toluene, later a liquid mixture of two isomeric ring ketones of the following formulas, is lyzed
EMI0001.0021
    The mixture obtained is liquid and the majority of it boils at 260-270.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Gemisches zweier isomerer Ringketone von nachstehen den Formeln EMI0001.0025 dadurch gekennzeichnet, dass man P-Chlor- propionsäure, Toluol und Aluminiumchlorid bei höherer Temperatur aufeinander einwirken lässt. Das erhaltene Gemisch ist fliissig und siedet der Hauptmenge nach bei 260-270 . Das Produkt soll zur Herstellung von Farbstoffen Verwendung finden. PATENT CLAIM: Process for the preparation of a mixture of two isomeric ring ketones of the formulas below EMI0001.0025 characterized in that P-chloropropionic acid, toluene and aluminum chloride are allowed to act on one another at a higher temperature. The mixture obtained is liquid and the majority of it boils at 260-270. The product is intended to be used for the manufacture of dyes.
CH127692D 1926-03-26 1927-03-14 Process for the preparation of a mixture of two isomeric ring ketones. CH127692A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE127692X 1926-03-26
CH126404T 1927-03-14

Publications (1)

Publication Number Publication Date
CH127692A true CH127692A (en) 1928-09-01

Family

ID=25710640

Family Applications (1)

Application Number Title Priority Date Filing Date
CH127692D CH127692A (en) 1926-03-26 1927-03-14 Process for the preparation of a mixture of two isomeric ring ketones.

Country Status (1)

Country Link
CH (1) CH127692A (en)

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