CH126195A - Process for the production of an anthraquinone derivative. - Google Patents

Process for the production of an anthraquinone derivative.

Info

Publication number
CH126195A
CH126195A CH126195DA CH126195A CH 126195 A CH126195 A CH 126195A CH 126195D A CH126195D A CH 126195DA CH 126195 A CH126195 A CH 126195A
Authority
CH
Switzerland
Prior art keywords
production
anthraquinone derivative
nitrochloroanthraquinone
acid
derivative
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH126195A publication Critical patent/CH126195A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/76—Ketones containing a keto group bound to a six-membered aromatic ring
    • C07C49/80—Ketones containing a keto group bound to a six-membered aromatic ring containing halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C66/00—Quinone carboxylic acids
    • C07C66/02—Anthraquinone carboxylic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines     Anthrachinonderivates.       Es wurde gefunden, dass man ein neues       Anthrachinonderivat    erhält, wenn man das       1,8-Nitrochloranthrachinon    mit konzentrier  ter Salpetersäure behandelt.  



  Das neue Produkt, welches sehr wahr  scheinlich das     1,5-Dinitro-8-chloranthrachi-          non    darstellt, ist ein wertvolles Zwischen  produkt zur Herstellung von Farbstoffen.  Es bildet ein leuchtend zitronengelbes  Pulver, das sich in Benzol,     Xylol;    Eisessig.,  konzentrierter Schwefelsäure sehr schwer,  dagegen leicht in kochendem     Trichlorbenzol     oder Nitrobenzol löst. Aus letzterem Lö  sungsmittel erhält man Kristalle, welche auf  dem Kupferblock bei 857   schmelzen unter  rasch folgender Zersetzung. Die Analysen  zahlen zeigen, dass ein     Dinitrochloranthra-          chinon    vorliegt.  



  <I>Beispiel:</I>  100 Teile     1,8-Nitrochloranthrachinon    wer  den in 800 Teile 96,7     %iger    Salpetersäure  eingetragen und auf<B>80'</B> erwärmt,     wobei     das Ausgangsmaterial in Lösung geht. Man  hält eine halbe Stunde auf 80 bis 90   und  lässt dann erkalten. Das bereits in der Wärme  als schweres, leuchtend gelbes     Kirstallpulver     abgeschiedene     Nitrierungsprodukt    wird über    Stein abgesaugt, mit etwa 96,7     %iger,    dann  mit 60     %iger    Salpetersäure und hierauf mit  heissem Wasser neutral gewaschen.  



  Das .gleiche     Produkt    entsteht auch       durch    Nitrieren des     1;8-Nitrochloranthrachi-          nons    in der Kälte.



  Process for the production of an anthraquinone derivative. It has been found that a new anthraquinone derivative is obtained if the 1,8-nitrochloroanthraquinone is treated with concentrated nitric acid.



  The new product, which is very likely to be 1,5-dinitro-8-chloroanthraquinone, is a valuable intermediate for the production of dyes. It forms a bright lemon yellow powder that dissolves in benzene, xylene; Glacial acetic acid. Concentrated sulfuric acid is very difficult to dissolve, but easily dissolves in boiling trichlorobenzene or nitrobenzene. The latter solvent yields crystals which melt on the copper block at 857 with rapid decomposition. The analysis figures show that a dinitrochloroanthraquinone is present.



  <I> Example: </I> 100 parts of 1,8-nitrochloroanthraquinone are added to 800 parts of 96.7% strength nitric acid and heated to <B> 80 '</B>, the starting material dissolving. Hold at 80 to 90 for half an hour and then let it cool down. The nitration product, which is already deposited in the warm as a heavy, bright yellow cherry powder, is sucked off over a stone, washed neutral with about 96.7%, then with 60% nitric acid and then with hot water.



  The same product is also produced by nitrating the 1; 8-nitrochloroanthraquinone in the cold.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Anthra- chinonderivätes, dadurch gekennzeichnet, dass man das 1,8-Nitrochloranthrachinon mit kon zentrierter Salpetersäure behandelt. Das neue Produkt ist .ein wertvolles Zwischenprodukt zum Herstellung von Farb stoffen. Es bildet ein leuchtend zitronengelbes Pulver, das sich .in-Benzol, Xylol, Eisessig, konzentrierter Schwefelsäure sehr schwer, dagegen leicht in kochendem Trichlorbenzol oder Nitrobenzol - löst. Claim: Process for the production of an anthrachinone derivative, characterized in that the 1,8-nitrochloroanthraquinone is treated with concentrated nitric acid. The new product is a valuable intermediate product in the manufacture of dyes. It forms a bright lemon-yellow powder that is very difficult to dissolve in benzene, xylene, glacial acetic acid, and concentrated sulfuric acid, but dissolves easily in boiling trichlorobenzene or nitrobenzene. Aus letzterem Lö- sungsmittel erhält man Kristalle, welche auf dem Kupferblock bei 357 schmelzen unter rasch folgender Zersetzung. Die Analysen zahlen zeigen, dass ein Dinitrochloranthra- chinon vorliegt Crystals are obtained from the latter solvent, which melt on the copper block at 357 with rapid decomposition. The analysis figures show that a dinitrochloroanthraquinone is present
CH126195D 1927-02-10 1927-02-10 Process for the production of an anthraquinone derivative. CH126195A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH126195T 1927-02-10

Publications (1)

Publication Number Publication Date
CH126195A true CH126195A (en) 1928-06-01

Family

ID=4384773

Family Applications (1)

Application Number Title Priority Date Filing Date
CH126195D CH126195A (en) 1927-02-10 1927-02-10 Process for the production of an anthraquinone derivative.

Country Status (1)

Country Link
CH (1) CH126195A (en)

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