CH191420A - Process for the preparation of 2'-oxyphenyl-2-aminochrysen. - Google Patents

Process for the preparation of 2'-oxyphenyl-2-aminochrysen.

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Publication number
CH191420A
CH191420A CH191420DA CH191420A CH 191420 A CH191420 A CH 191420A CH 191420D A CH191420D A CH 191420DA CH 191420 A CH191420 A CH 191420A
Authority
CH
Switzerland
Prior art keywords
oxy
aminochrysen
preparation
oxyphenyl
aminobenzene
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 CH191420A publication Critical patent/CH191420A/en

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

Description

  

  Verfahren zur Herstellung von     2'-Ogyphenyl-2-aminoehrysen.       Gemäss dem im Hauptpatent beschriebenen  Verfahren erhält man das     4'-Oxyphenyl-3-          aminopyren,    wenn man     3-Oxypyren    mit     1-          Oxy-4-aminobenzol    in Gegenwart von     Bisul-          fitlauge    bei Temperaturen von etwa 130 bis  <B>1700</B> C kondensiert.  



  Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung von     2'-Oxy-          pherryl-2-aminochrysen,    welches dadurch ge  kennzeichnet ist, dass man     2-Oxychrysen    mit       1-Oxy-2-aminobenzol    in Gegenwart von     Bisul-          fitlaugeauf        Temperaturenvonetwa    130-170 C  und in Gegenwart eins erheblichen Über  schusses des genannten     Aminophenols    erhitzt.

    <I>Beispiel:</I>  12,2 Teile     2-Oxychrysen    werden mit 22  Teilen     1-Oxy-2-aminobenzol,    6,6 Teilen Na  triumsulfit und 100     Vol.    Teilen     Bisulfitlauge     <B>(800</B>     Be)    40 Stunden auf<B>150-1700</B> erhitzt.  Das Kondensationsprodukt wird abgesaugt,    mit heissem Wasser gewaschen und mit     gylol     ausgekocht. Nach Lösen in Natronlauge in  Gegenwart von etwas     Hydrosulfit    wird mit       Bisulfit    gefällt. Das gelbe Kondensations  produkt ist an der Luft leicht     oxydierbar.     Das Endprodukt dient als Zwischenprodukt  für die Herstellung von Farbstoffen.



  Process for the preparation of 2'-ogyphenyl-2-aminoehrysen. According to the process described in the main patent, 4'-oxyphenyl-3-aminopyrene is obtained if 3-oxypyrene is mixed with 1-oxy-4-aminobenzene in the presence of bisulfite liquor at temperatures of about 130 to 1700% > C condensed.



  The present patent relates to a process for the preparation of 2'-oxy-pherryl-2-aminochryses, which is characterized in that 2-oxy-yses are treated with 1-oxy-2-aminobenzene in the presence of bisulfite liquor at temperatures of about 130-170 C and heated in the presence of a substantial excess of said aminophenol.

    <I> Example: </I> 12.2 parts of 2-Oxychrysen are mixed with 22 parts of 1-oxy-2-aminobenzene, 6.6 parts of sodium sulfite and 100 parts by volume of bisulfite liquor <B> (800 </B> Be ) Heated to <B> 150-1700 </B> for 40 hours. The condensation product is filtered off with suction, washed with hot water and boiled with glycol. After dissolving in sodium hydroxide solution in the presence of some hydrosulphite, bisulphite is used for precipitation. The yellow condensation product is easily oxidized in air. The end product serves as an intermediate for the manufacture of dyes.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von 2'-Oxy- phenyl-2-aminochrysen, dadurch gekennzeich net, dass man 2-Oxychrysen mit 1-Oxy-2- aminobenzol in Gegenwart von Bisulfitlauge auf Temperaturen von etwa<B>130-1700</B> und in Gegenwart eines erheblichen Überschusses des genannten Aminophenols erhitzt. Das gelbe Kondensationsprodukt oxydiert sich leicht an der Luft. PATENT CLAIM: Process for the production of 2'-oxy-phenyl-2-aminochrysen, characterized in that 2-oxy-chrysene is mixed with 1-oxy-2-aminobenzene in the presence of bisulfite liquor to temperatures of about 130-1700. B> and heated in the presence of a substantial excess of said aminophenol. The yellow condensation product is easily oxidized in air.
CH191420D 1934-11-09 1935-09-13 Process for the preparation of 2'-oxyphenyl-2-aminochrysen. CH191420A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE191420X 1934-11-09
CH185670T 1935-09-13

Publications (1)

Publication Number Publication Date
CH191420A true CH191420A (en) 1937-06-15

Family

ID=25721241

Family Applications (1)

Application Number Title Priority Date Filing Date
CH191420D CH191420A (en) 1934-11-09 1935-09-13 Process for the preparation of 2'-oxyphenyl-2-aminochrysen.

Country Status (1)

Country Link
CH (1) CH191420A (en)

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