CH192975A - Process for the preparation of 4'-oxyphenyl-2-aminochrysen. - Google Patents
Process for the preparation of 4'-oxyphenyl-2-aminochrysen.Info
- Publication number
- CH192975A CH192975A CH192975DA CH192975A CH 192975 A CH192975 A CH 192975A CH 192975D A CH192975D A CH 192975DA CH 192975 A CH192975 A CH 192975A
- Authority
- CH
- Switzerland
- Prior art keywords
- aminochrysen
- preparation
- oxyphenyl
- ogy
- aminobenzene
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung von 4'-Ogyphenyl-2-aminochrysen. Gemäss dem im Hauptpatent beschrie benen Verfahren erhält man das V-Ogy- phenyl-3-aminopyren, wenn man 3-Ogypyren mit 1-Ogy-4-aminobenzol in Gegenwart vors Bisulfitlauge bei Temperaturen von etwa 130 bis<B>170'</B> C kondensiert.
Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung von 4'-Ogy- phenyl-2-aminochrysen, welches dadurch ge kennzeichnet ist, dass man 2- Aminochrysen mit 1-Ogy-4-aminobenzol in Gegenwart von Bisulfitlauge auf Temperaturen von etwa 130 bis<B>170'</B> C und in Gegenwart eines erheblichen Überschusses des genannten Aminophenols erhitzt.
<I>Beispiel:</I> 12 Teile 2-Aminochrysen werden mit 25 Teilen 1-Ogy-4-aminobenzol, @6 Teilen Na triumsulfit und 100 Volumteilen Bisulfit- la.uge von<B>38'</B> B6 60 Stunden auf 130 bis 140" erhitzt.
Das erhaltene Kondensations produkt wird abgesaugt, mit heissem Wasser gewaschen und durch Umlösen aus verdünn ter Natronlauge unter Zusatz von etwas Hy- drosulfit gereinigt. Die neue Verbindung lässt sich aus dieser Lösung mit Bisulfit fällen. Das Endprodukt ist identisch mit dem nach dem Zusatzpatent Nr. 191417 erhält lichen Produkt.
Process for the preparation of 4'-ogyphenyl-2-aminochrysen. According to the process described in the main patent, V-ogyphenyl-3-aminopyrene is obtained if 3-ogypyrene is mixed with 1-ogy-4-aminobenzene in the presence of bisulfite liquor at temperatures of about 130 to 170 '</ B> C condensed.
The present patent is a process for the preparation of 4'-Ogy-phenyl-2-aminochrysen, which is characterized in that 2-aminochrysen with 1-Ogy-4-aminobenzene in the presence of bisulfite liquor at temperatures of about 130 to <B> 170 '</B> C and heated in the presence of a considerable excess of said aminophenol.
<I> Example: </I> 12 parts of 2-aminochrysene are mixed with 25 parts of 1-ogy-4-aminobenzene, 6 parts of sodium sulfite and 100 parts by volume of bisulfite la.uge of <B> 38 '</B> B6 Heated to 130 to 140 "for 60 hours.
The condensation product obtained is filtered off with suction, washed with hot water and purified by dissolving from dilute sodium hydroxide solution with the addition of a little hydrosulfite. The new compound can be precipitated from this solution with bisulfite. The end product is identical to the product obtainable according to additional patent no.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE192975X | 1934-11-09 | ||
CH185670T | 1935-09-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH192975A true CH192975A (en) | 1937-09-15 |
Family
ID=25721242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH192975D CH192975A (en) | 1934-11-09 | 1935-09-13 | Process for the preparation of 4'-oxyphenyl-2-aminochrysen. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH192975A (en) |
-
1935
- 1935-09-13 CH CH192975D patent/CH192975A/en unknown
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