CH106074A - Process for the production of a new intermediate product. - Google Patents
Process for the production of a new intermediate product.Info
- Publication number
- CH106074A CH106074A CH106074DA CH106074A CH 106074 A CH106074 A CH 106074A CH 106074D A CH106074D A CH 106074DA CH 106074 A CH106074 A CH 106074A
- Authority
- CH
- Switzerland
- Prior art keywords
- mole
- cyanuric chloride
- sulfonic acid
- production
- intermediate product
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/42—One nitrogen atom
- C07D251/44—One nitrogen atom with halogen atoms attached to the two other ring carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines neuen Zwischenproduktes. Es wurde gefunden, dass man ein neues Zwischenprodukt, das primäre Kondensations produkt von einem Mol. Cyanurchlorid mit einem Mol. 2.5-Aminonaphthol-7-sulfosäure erhält, wenn man auf ein Mol. Cy anurchlorid ein Mol. 2.5-Aminonaphthol-7-sulfosäure einwirken lässt.
Diese Kondensation wird durch Zusam menrühren der Komponenten in einem .ge-eig- neten Verdünnungsmittel durchgeführt, und es wurde gefunden, d.ass als solches Wasser in überraschender Weise sehr gut geeignet ist.
Das primäre Kondensationsprodukt aus einem Mol. Cyanurchlorid mit einem Mol. 2 . 5-Aminonaphthol-7-sulf osäure bildet ein in Wasser leicht lösliches, kristallinisches, st farbloses Pulver. Es enthält noch zwei r.eak- tionsfähige Chloratome und stellt ein we volles Ausgangsmaterial zur Herstellung von Farbstoffen dar.
Beispiel: Eine fein verteilte Aufschlemmung von 18,5 Teilen Cyanurchlorid in 1000 Teilen Wasser wird mit Salzsäure schwach sauer gestellt und nach und nach bei 0<B>'</B>unter Rüh ren mit einer Lösung von 26,2 Teilen 2. 5 a.minonaphthol-7-sulfosaurem Natrium in 500 Teilen Wasser versetzt, wobei man durch Zu gabe von S.odalösung (im ganzen 5,3 Teile) die Reaktion immer schwach sauer hält.
Die so erhaltene klare Lösung enthält das Kon- densationspro,dukt von einem Mol. Cyanur- chlorid mit ,einem Mol. 2 . 5-Aminon.aphthol- 7-sulfosäure, das durch Kochsalz und Säure zusatz gefällt wird.
Process for the production of a new intermediate product. It has been found that a new intermediate product, the primary condensation product of one mole of cyanuric chloride with one mole of 2.5-aminonaphthol-7-sulfonic acid, is obtained when one mole of 2.5-aminonaphthol-7-sulfonic acid is used for one mole of cyano chloride can act.
This condensation is carried out by stirring the components together in a suitable diluent, and it has been found that, surprisingly, water is very suitable as such.
The primary condensation product of one mole of cyanuric chloride with one mole of 2. 5-Aminonaphthol-7-sulfonic acid forms a crystalline, colorless powder which is easily soluble in water. It still contains two reactive chlorine atoms and is a wholesome starting material for the production of dyes.
Example: A finely divided slurry of 18.5 parts of cyanuric chloride in 1000 parts of water is made weakly acidic with hydrochloric acid and gradually at 0 <B> '</B> with stirring with a solution of 26.2 parts 2. 5 a.minonaphthol-7-sulphonic acid sodium is added in 500 parts of water, and the reaction is always kept slightly acidic by adding sodium carbonate solution (5.3 parts in all).
The clear solution thus obtained contains the condensation product of one mole of cyanuric chloride with one mole of 2. 5-aminonaphthol- 7-sulfonic acid, which is precipitated by adding table salt and acid.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH103430T | 1922-09-07 | ||
CH106074T | 1922-09-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH106074A true CH106074A (en) | 1924-08-01 |
Family
ID=25706373
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH106074D CH106074A (en) | 1922-09-07 | 1922-09-07 | Process for the production of a new intermediate product. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH106074A (en) |
-
1922
- 1922-09-07 CH CH106074D patent/CH106074A/en unknown
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