CH171948A - Process for the preparation of a condensation product of the anthracene series. - Google Patents

Process for the preparation of a condensation product of the anthracene series.

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Publication number
CH171948A
CH171948A CH171948DA CH171948A CH 171948 A CH171948 A CH 171948A CH 171948D A CH171948D A CH 171948DA CH 171948 A CH171948 A CH 171948A
Authority
CH
Switzerland
Prior art keywords
condensation product
preparation
anthracene series
production
product
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 CH171948A publication Critical patent/CH171948A/en

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

Description

  

  Verfahren zur Herstellung eines     Kondensationsproduktes    der     Anthr        acenreihe.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines Konden  sationsproduktes -der     Anthraeenreihe,    dadurch  gekennzeichnet,     @dass    man     MetIlylen-2--chlor-          anthron    mit     a-Naphthochinon    umsetzt.  



  Das neue Kondensationsprodukt stellt ein       gelbes    Kristallpulver dar. Es soll als Zwi  schenprodukt zur Herstellung von Farbstof  fen Verwendung finden und liefert ferner  auf Baumwolle aus grüner     Küpe    gelbe Aus  färbungen von     guten    Echtheitseigenschaften.  <I>Beispiel:</I>  12 Teile     Methylen-2-ehloranthron    werden  zusammen mit 16 Teilen     a-Naphthoehinon     in etwa 120 Teilen Eisessig 1/2 Stunde am       Rückflusskühler    unter Rühren: zum Sieden  erhitzt. Das Kondensationsprodukt wird     heiss       von der Flüssigkeit getrennt und mit Eis  essig nachgewaschen.



  Process for the preparation of a condensation product of the anthracene series. The present patent relates to a process for the production of a condensation product - the Anthraeen range, characterized in that methylene-2 - chloro-anthrone is reacted with a-naphthoquinone.



  The new condensation product is a yellow crystal powder. It is intended to be used as an inter mediate product for the production of dyes and also provides yellow colorations with good fastness properties on cotton from a green vat. <I> Example: </I> 12 parts of methylene-2-ehloranthrone are heated to the boil together with 16 parts of a-naphthoehinone in about 120 parts of glacial acetic acid for 1/2 hour while stirring. The condensation product is separated from the liquid while hot and washed with glacial vinegar.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Konden sationsproduktes der Anthracenreihe, dadurch gekennzeichnet, dass man Methylen-2-chlor- anthron mit a-Naphtochino#n umsetzt. Das neue Kondensationsprodukt stellt ein gelbes Kristallpulver dar. Es soll als Zwi schenprodukt zur Herstellung von Farbstof fen Verwendung finden und liefert ferner auf Baumwolle aus grüner Küpe gelbe Aus färbungen von guten Echtheitseigenschaften. PATENT CLAIM: Process for the production of a condensation product of the anthracene series, characterized in that methylene-2-chloro-anthrone is reacted with a-naphtochino # n. The new condensation product is a yellow crystal powder. It is intended to be used as an inter mediate product for the production of dyes and also provides yellow colorations with good fastness properties on cotton from a green vat.
CH171948D 1932-05-03 1933-04-26 Process for the preparation of a condensation product of the anthracene series. CH171948A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE171948X 1932-05-03
DE140532X 1932-05-14
CH168440T 1933-04-26

Publications (1)

Publication Number Publication Date
CH171948A true CH171948A (en) 1934-09-15

Family

ID=27177527

Family Applications (1)

Application Number Title Priority Date Filing Date
CH171948D CH171948A (en) 1932-05-03 1933-04-26 Process for the preparation of a condensation product of the anthracene series.

Country Status (1)

Country Link
CH (1) CH171948A (en)

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