CH150787A - Process for the preparation of a diazoamino compound. - Google Patents
Process for the preparation of a diazoamino compound.Info
- Publication number
- CH150787A CH150787A CH150787DA CH150787A CH 150787 A CH150787 A CH 150787A CH 150787D A CH150787D A CH 150787DA CH 150787 A CH150787 A CH 150787A
- Authority
- CH
- Switzerland
- Prior art keywords
- compound
- preparation
- diazoamino compound
- diazo
- diazoamino
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung einer Diazoaminoverbindung. Durch das Hauptpatent ist ein Verfahren zur Darstellung einer Diazoaminoverbindung beschrieben, dadurch gekennzeichnet, dass man die Diazoverbindung aus 3-Chloranilin auf 2-Amino-4-sulfobenzoesäure einwirken lässt.
Gegenstand vorliegender Erfindung ist nun ein Verfahren zur Darstellung einer Diazo- aminoverbindung, dadurch gekennzeichnet, dass man die Diazoverbindung aus m-Chlor- anilin auf 2-Naphtylamin-6.8-disulfosäure einwirken lässt.
<I>Beispiel:</I> Die aus 127 Gewichtsteilen m-Chloranilin in üblicher Weise mit Salzsäure und Natrium nitrit erhältliche Lösung von 3-Chlorbenzol- 1-diazoniumchlorid lässt man in eine neutrale Lösung von 2-Naphtylamin-6.8-disulfosäure einlaufen und stumpft die kongosaure Reak tion zweckmässig mit Natriumacetat ab. Nach kurzer Zeit ist die Bildung der Diazoamino- verbindung von der Formel:
EMI0001.0019
vollendet, die sich auf Zusatz von Kochsalz als in Wasser leicht lösliches Natriumsalz abscheidet, das in üblicher Weise isoliert und getrocknet wird.
Die Diazoaminoverbin- dung lässt sich in wässeriger Lösung durch Säuren leicht wieder in die Ausgangskompo nenten spalten.
Die neue Verbindung ist ein in Wasser leicht lösliches gelbes Pulver und soll in der Färberei-undDruckereipraxis,sowie als Schäd lingsbekämpfungsmittel Verwendung finden.
Process for the preparation of a diazoamino compound. The main patent describes a method for preparing a diazoamino compound, characterized in that the diazo compound from 3-chloroaniline is allowed to act on 2-amino-4-sulfobenzoic acid.
The present invention now relates to a process for the preparation of a diazo amino compound, characterized in that the diazo compound from m-chloroaniline is allowed to act on 2-naphthylamine-6.8-disulfonic acid.
<I> Example: </I> The solution of 3-chlorobenzene-1-diazonium chloride, which can be obtained from 127 parts by weight of m-chloroaniline in the usual way with hydrochloric acid and sodium nitrite, is allowed to run into a neutral solution of 2-naphthylamine-6.8-disulfonic acid and the Congo acid reaction appropriately blunted with sodium acetate. After a short time, the formation of the diazoamino compound has the formula:
EMI0001.0019
completed, which separates on the addition of common salt as a readily soluble sodium salt, which is isolated and dried in the usual way.
The diazoamino compound can easily be split back into the starting components in an aqueous solution by acids.
The new compound is a yellow powder that is easily soluble in water and is intended to be used in dyeing and printing and as a pesticide.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE150787X | 1928-08-07 | ||
| CH145151T | 1929-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH150787A true CH150787A (en) | 1931-11-15 |
Family
ID=25714616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH150787D CH150787A (en) | 1928-08-07 | 1929-07-20 | Process for the preparation of a diazoamino compound. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH150787A (en) |
-
1929
- 1929-07-20 CH CH150787D patent/CH150787A/en unknown
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