CH140417A - Process for the preparation of a nitrogenous compound of the anthanthrone series. - Google Patents
Process for the preparation of a nitrogenous compound of the anthanthrone series.Info
- Publication number
- CH140417A CH140417A CH140417DA CH140417A CH 140417 A CH140417 A CH 140417A CH 140417D A CH140417D A CH 140417DA CH 140417 A CH140417 A CH 140417A
- Authority
- CH
- Switzerland
- Prior art keywords
- anthanthrone
- preparation
- nitrogenous compound
- series
- anthanthrone series
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung einer stickstoffhaltigen Verbindung der Anthanthronreihe. Es wurde gefunden, da.ss man eine wert volle stickstoffhaltige Verbindung der An thanthronreihe erhalten kann, wenn man in Anthanthron durch Behandlung mit Salpe tersäure eine Nitrogruppe einführt.
Der neue Körper bildet orangefarbene Nadeln, löst sich in konzentrierter Schwefel säure mit violetter Farbe, lässt sich aus hoch siedenden Lösun-sinitteln, in denen er sehr schwer löslich ist, umkristallisieren und lie fert mit alkalischer Hydrosulfitlösung eine rote Küpe, aus der Baumwolle in blaugrauen Tönen gefärbt wird.
Beispiel: 30,6 Teile Anthanthron werden in 300 Teilen Nitrobenzol mit 35 Teilen 96%iger Salpetersäure unter Rühren auf 80 bis 1.00 C erhitzt. Sobald die Wasserabspal- tung beendet ist, lässt man erkalten und saugt das ausgeschiedene 112ononitroanthan- thron ab.
Process for the preparation of a nitrogenous compound of the anthanthrone series. It has been found that a valuable nitrogen-containing compound of the anthanthrone series can be obtained if a nitro group is introduced into anthanthrone by treatment with nitric acid.
The new body forms orange-colored needles, dissolves in concentrated sulfuric acid with a violet color, can be recrystallized from high-boiling solvents, in which it is very poorly soluble, and produces a red vat with an alkaline hydrosulphite solution, from the cotton in blue-gray Tones is colored.
Example: 30.6 parts of anthanthrone are heated in 300 parts of nitrobenzene with 35 parts of 96% nitric acid to 80 to 1.00 ° C. while stirring. As soon as the elimination of water has ended, it is allowed to cool and the precipitated 112ononitroanthan thrones are filtered off with suction.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE140417X | 1928-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH140417A true CH140417A (en) | 1930-06-15 |
Family
ID=5668211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH140417D CH140417A (en) | 1928-02-24 | 1929-01-08 | Process for the preparation of a nitrogenous compound of the anthanthrone series. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH140417A (en) |
-
1929
- 1929-01-08 CH CH140417D patent/CH140417A/en unknown
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