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CH136558A - Process for the production of a condensation product. - Google Patents

Process for the production of a condensation product.

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Publication number
CH136558A
CH136558A CH136558DA CH136558A CH 136558 A CH136558 A CH 136558A CH 136558D A CH136558D A CH 136558DA CH 136558 A CH136558 A CH 136558A
Authority
CH
Switzerland
Prior art keywords
product
production
condensation product
condensation
preparation
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 CH136558A publication Critical patent/CH136558A/en

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

Description

  

  Verfahren zur Herstellung eines Kondensationsproduktes.    Vorliegendes Patent bezieht sich auf ein  Verfahren zur Darstellung eines neuen Kon  densationsproduktes, dadurch gekennzeichnet,  dass man     o-Chloranilin    mit     Cyklohexanon    in  Gegenwart von sauren Kondensationsmitteln  auf höhere Temperaturen erhitzt.  



  Das so erhaltene Produkt stellt ein Ge  inisch von zwei Kondensationsprodukten dar  und soll als Zwischenprodukt zur Herstellung  von     Farbstoffen    und pharmazeutischen<I>Pro-</I>  dukten Verwendung finden.  



  Das Produkt stellt ein helles Öl dar, das  in der Kälte erstarrt; es hat den Charakter  einer schwachen Base, die verhältnismässig  leicht dissoziierende Salze liefert.    <I>Beispiel:</I>  Man erhitzt eine Lösung von 30 Teilen       Cyklohexanori    und 100 Teilen     o-Chloranilin     in<B>350</B> Teilen Salzsäure (d =<B>1,06)</B> in einem       Autoklaven    auf     140-150'.    Nach ungefähr  8 Stunden stellt man alkalisch, und bläst    das überschüssige Chloranilin mit Dampf ab.  Das zurückbleibende helle Öl, das in der  Kälte erstarrt, wird filtriert und getrocknet.  Es stellt ein Gemisch von zwei Kondensations  produkten dar.  



  An Stelle von Salzsäure kann man auch  andere Mineralsäuren als Kondensationsmittel  verwenden, zum Beispiel     Bromwasserstoffsäure     oder Schwefelsäure, oder andere Kondensations  mitteln wie Chlorzink können verwendet  werden auch ohne die Anwesenheit von freier  Säure.



  Process for the production of a condensation product. The present patent relates to a process for preparing a new condensation product, characterized in that o-chloroaniline is heated to higher temperatures with cyclohexanone in the presence of acidic condensing agents.



  The product obtained in this way represents a mixture of two condensation products and is intended to be used as an intermediate for the production of dyes and pharmaceutical products.



  The product is a light-colored oil that solidifies in the cold; it has the character of a weak base which yields salts which dissociate relatively easily. <I> Example: </I> A solution of 30 parts of cyclohexanori and 100 parts of o-chloroaniline in <B> 350 </B> parts of hydrochloric acid (d = <B> 1.06) </B> is heated in one Autoclave to 140-150 '. After about 8 hours it is made alkaline and the excess chloroaniline is blown off with steam. The remaining light oil, which solidifies in the cold, is filtered and dried. It is a mixture of two condensation products.



  Instead of hydrochloric acid, other mineral acids can also be used as condensing agents, for example hydrobromic acid or sulfuric acid, or other condensing agents such as zinc chloride can also be used without the presence of free acid.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Kondensationsproduktes, dadurch gekenn zeichnet, dass man o-Chloranilin mit Cyklo- hexanon in Gegenwart von sauren Konden sationsmitteln auf höhere Temperaturen er hitzt. Das so erhaltene Produkt stellt ein Ge misch von zwei Kondensationsprodukten dar und soll als Zwischenprodukt zur Trierstellung von Farbstoffen und pharmazeutischen Pro dukten Verwendung finden. PATENT CLAIM: Process for the preparation of a new condensation product, characterized in that o-chloroaniline is heated to higher temperatures with cyclohexanone in the presence of acidic condensation agents. The product obtained in this way is a mixture of two condensation products and is intended to be used as an intermediate for the preparation of dyes and pharmaceutical products. Das Produkt stellt ein helles Öl dar, das in der Kälte erstarrt; es hat den Charakter einer schwachen Base, die verhältnismäL,ig leicht dissoziierende Salze liefert. The product is a light-colored oil that solidifies in the cold; it has the character of a weak base, which gives relatively easily dissociating salts.
CH136558D 1927-02-11 1928-02-08 Process for the production of a condensation product. CH136558A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE136558X 1927-02-11
CH133476T 1928-02-08

Publications (1)

Publication Number Publication Date
CH136558A true CH136558A (en) 1929-11-15

Family

ID=25712082

Family Applications (1)

Application Number Title Priority Date Filing Date
CH136558D CH136558A (en) 1927-02-11 1928-02-08 Process for the production of a condensation product.

Country Status (1)

Country Link
CH (1) CH136558A (en)

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