CH138878A - Process for the preparation of a new, nitrogenous vat dye. - Google Patents
Process for the preparation of a new, nitrogenous vat dye.Info
- Publication number
- CH138878A CH138878A CH138878DA CH138878A CH 138878 A CH138878 A CH 138878A CH 138878D A CH138878D A CH 138878DA CH 138878 A CH138878 A CH 138878A
- Authority
- CH
- Switzerland
- Prior art keywords
- sep
- new
- allo
- vat dye
- preparation
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
Verfahren zur Darstellung eines neuen, stickstoffhaltigen Küpenfarbstoffes. Es wurde gefunden, dass man einen neuen, stickstoffhaltigen ]#üpenfarbstoff erhält, wenn man 1 Mol. Dihalogen-allo-ms-naphto- dianthron, das durch Halogenieren von allo- ms-Naphtodianthron hergestellt ist, mit Mol. 1-Aminoanthrachinon kondensiert.
Die Kondensation wird zweckmässig in Lösungs- oder,Suspensionsmitteln und in An- oder Abwesenheit von säurebindenden Mit- teln ausgeführt. Als Lösungsmittel oder Suspeusionsmittel kommen besonders solche von hohem Siede punkt, wie Nitrobenzol oder Naphtalin in Betracht. Es ist vorteilhaft, während der Reaktion Katalysatoren, wie zum Beispiel Kupfercarbonat oder Kupferoxyd, zuzuset zen.
Der neue, stickstoffhaltige Küpenfarb- stoff, Diaminoanthrachinonyl- allo-ms-naph- to,dianthron, kristallisiert in violetten Nadeln, löst sich mit grüner Farbe in konzentrierter Schwefelsäure und färbt Baumwolle aus vio letter Küpe violettsticliig grau.
Beispiel: 9,5 Teile Dichlor-allo-ms-naphtodianthron werden in 100 Teilen Nitrobenzol mit 10 Teilen 1-Aminoanthrachinon, 8 Teilen Na triumacetat und 1 Teil Kupferoxyd solange gekocht, bis das Reaktionsprodukt chlorfrei ist. Der Farbstoff wird abgesaugt, mit ver dünnter Salzsäure ausgekocht, mit Wasser nachgewaschen und getrocknet.
Process for the preparation of a new, nitrogenous vat dye. It has been found that a new, nitrogen-containing] ole dye is obtained if 1 mole of dihalo-allo-ms-naphthodianthrone, which is prepared by halogenating allo-ms-naphthodianthrone, is condensed with mole of 1-aminoanthraquinone.
The condensation is expediently carried out in solvents or suspending agents and in the presence or absence of acid-binding agents. Particularly suitable solvents or suspending agents are those with a high boiling point, such as nitrobenzene or naphthalene. It is advantageous to add catalysts such as copper carbonate or copper oxide during the reaction.
The new nitrogen-containing vat dye, diaminoanthraquinonyl-allo-ms-naphtho, dianthron, crystallizes in violet needles, dissolves with green color in concentrated sulfuric acid and dyes cotton from the vio letter vat with violet-tinged gray.
Example: 9.5 parts of dichloro-allo-ms-naphtodianthrone are boiled in 100 parts of nitrobenzene with 10 parts of 1-aminoanthraquinone, 8 parts of sodium acetate and 1 part of copper oxide until the reaction product is chlorine-free. The dye is filtered off with suction, boiled with dilute hydrochloric acid, washed with water and dried.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE138878X | 1927-01-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH138878A true CH138878A (en) | 1930-03-31 |
Family
ID=5667510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH138878D CH138878A (en) | 1927-01-24 | 1928-01-21 | Process for the preparation of a new, nitrogenous vat dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH138878A (en) |
-
1928
- 1928-01-21 CH CH138878D patent/CH138878A/en unknown
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