CH175235A - Process for the preparation of 1,3,5-di- (p-chlorophenylamino) -oxybenzene. - Google Patents
Process for the preparation of 1,3,5-di- (p-chlorophenylamino) -oxybenzene.Info
- Publication number
- CH175235A CH175235A CH175235DA CH175235A CH 175235 A CH175235 A CH 175235A CH 175235D A CH175235D A CH 175235DA CH 175235 A CH175235 A CH 175235A
- Authority
- CH
- Switzerland
- Prior art keywords
- chlorophenylamino
- oxybenzene
- preparation
- chloroaniline
- phloroglucine
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung von 1,3,6-D1-(p-chlorphenylamino)-ogybenzol. Gegenstand des vorliegenden Zusatz patentes ist ein Verfahren zur Darstellung von 1,3,5-Di-(p-chlorphenylamino)-oxybenzol, welches dadurch gekennzeichnet ist, dass man Phloroglucin mit Natriumbisulfit und p- Chloranilin im Verhältnis von ungefähr 2 Hol p-Chloranilin auf 1 Hol Phloroglucin in wässeriger Lösung erhitzt.
Die neue Verbindung soll als Zwischen- produkt für die Herstellung von Farbstoffen Verwendung finden.
<I>Beispiel:</I> <B>162</B> Gewichtsteile Phloroglucin, 255 Ge wichtsteile p-Chloranilin und 1000 Ge wichtsteile Natriumbisulfitlösung (enthaltend 37,65o1' Natriumbisulfit) werden unter Rüh ren während 50 Stunden zum Sieden erhitzt. Das Reaktionsgemisch wird mit Wasser dampf zur Entfernung der unveränderten Base geblasen, mit Natronlauge versetzt und aufgekocht, bis das entstandene 1,3,5-Di-(p- chlorphenylamino)-oxybenzol gelöst ist, die Lösung filtriert und durch Zugabe von Mine ralsäure bis zur Neutralität das entstandene 1,3,5-Di-(p-chlorphenylamino)-ogybenzol ge fällt.
Die Verbindung kristallisiert aus Toluol in feinen Blättchen vom Schmelzpunkt 112 C (unkorrigiert).
Process for the preparation of 1,3,6-D1- (p-chlorophenylamino) -ogybenzene. The subject of the present additional patent is a process for the preparation of 1,3,5-di- (p-chlorophenylamino) -oxybenzene, which is characterized in that one phloroglucine with sodium bisulfite and p-chloroaniline in a ratio of about 2 hol p-chloroaniline heated to 1 ha of phloroglucinol in aqueous solution.
The new compound is to be used as an intermediate in the manufacture of dyes.
<I> Example: </I> <B> 162 </B> parts by weight of phloroglucine, 255 parts by weight of p-chloroaniline and 1000 parts by weight of sodium bisulfite solution (containing 37.65o1 'sodium bisulfite) are heated to boiling for 50 hours with stirring. The reaction mixture is blown with steam to remove the unchanged base, mixed with sodium hydroxide solution and boiled until the resulting 1,3,5-di- (p-chlorophenylamino) -oxybenzene is dissolved, the solution is filtered and ralsäure by adding mineral acid the 1,3,5-di- (p-chlorophenylamino) -ogybenzene formed falls to neutrality.
The compound crystallizes from toluene in fine flakes with a melting point of 112 ° C. (uncorrected).
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE175235X | 1932-09-03 | ||
| CH171037T | 1933-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH175235A true CH175235A (en) | 1935-02-15 |
Family
ID=25719014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH175235D CH175235A (en) | 1932-09-03 | 1933-09-01 | Process for the preparation of 1,3,5-di- (p-chlorophenylamino) -oxybenzene. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH175235A (en) |
-
1933
- 1933-09-01 CH CH175235D patent/CH175235A/en unknown
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