CH100188A - Process for the preparation of an acridine dye. - Google Patents

Process for the preparation of an acridine dye.

Info

Publication number
CH100188A
CH100188A CH100188DA CH100188A CH 100188 A CH100188 A CH 100188A CH 100188D A CH100188D A CH 100188DA CH 100188 A CH100188 A CH 100188A
Authority
CH
Switzerland
Prior art keywords
preparation
golden yellow
formic acid
dye
acridine dye
Prior art date
Application number
Other languages
German (de)
Inventor
Chemische Fabrik Rohn Pratteln
Original Assignee
Chem Fab Rohner A G Pratteln
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chem Fab Rohner A G Pratteln filed Critical Chem Fab Rohner A G Pratteln
Publication of CH100188A publication Critical patent/CH100188A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B15/00—Acridine dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Description

  

  Verfahren zur Darstellung eines     Aeridinfarbstoffes.       Es wurde die Beobachtung gemacht, dass  sich     2,7-Dimethyl-3,6-diamino-10-methylacri-          diniumchlorid,    darstellbar nach deutschem  Patent Nr. 143893, Beispiel 1, durch Kochen  mit starker     Ameisensäure    in einen neuen  wertvollen Farbstoff überführen lässt, der  sich vom Ausgangsmaterial durch reinere und  rötere Nuancen und grössere Echtheit seiner  Färbungen vorteilhaft unterscheidet.  



       Beispiel:     45 kg     2,7-Dimethyl-3,6-diamino-10-me-          thylacridiniumchlorid    werden mit 180 kg  Ameisensäure von 85 % und 20 kg wasser  freiem     Natriumformiat    4 bis 5 Stunden un  ter     Rückfluss    gekocht und dann die über  schüssige Ameisensäure     abdestilliert    unter  vermindertem Druck. Der Rückstand     wird     mit zirka 200 Liter heissem Wasser verrührt,  mit Salzsäure kongosauer gestellt und nach  dem Erkalten filtriert und getrocknet. Der  neue Farbstoff     bildet    ein goldgelbes Pulver,  das sich in heissem Wasser mit der gleichen  Farbe löst und tannierte Baumwolle in gold  gelber Nuance färbt.

   Die     Lösung    in konzen-         trierter    Schwefelsäure ist     grünlichgelb    mit  blaugrüner     Fluorescenz.  



  Process for the preparation of an aeridine dye. It was observed that 2,7-dimethyl-3,6-diamino-10-methylacridiniumchlorid, which can be prepared according to German patent no. 143893, example 1, can be converted into a new valuable dye by boiling with strong formic acid, which advantageously differs from the starting material by purer and redder nuances and greater authenticity of its colorations.



       Example: 45 kg of 2,7-dimethyl-3,6-diamino-10-methylacridinium chloride are refluxed for 4 to 5 hours with 180 kg of formic acid of 85% and 20 kg of anhydrous sodium formate and then the excess formic acid is distilled off under reduced pressure. The residue is stirred with about 200 liters of hot water, acidified to Congo with hydrochloric acid and, after cooling, filtered and dried. The new dye forms a golden yellow powder, which dissolves in hot water with the same color and dyes tannic cotton in a golden yellow shade.

   The solution in concentrated sulfuric acid is greenish yellow with blue-green fluorescence.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Acridin- farbstoffes, der ein goldgelbes Pulver ist und sich in Wasser mit goldgelber Farbe, in kon zentrierter Schwefelsäure mit grünlich-gelber Farbe und blaugrüner Fluorescenz löst und welcher tannierte Baumwolle in reinen, gold gelben Tönen anfärbt, darin bestehend, dass man 2,7-Dimethyl-3,6-diamino-10-methylacri- diniumchlorid mit starker Ameisensäure kocht. Der Farbstoff unterscheidet sich vom Ausgangsmaterial durch reinere und rötere Nuancen und grössere Echtheit seiner Fär bungen. PATENT CLAIM: Process for the preparation of an acridine dye which is a golden yellow powder and which dissolves in water with a golden yellow color, in concentrated sulfuric acid with a greenish yellow color and blue-green fluorescence and which dyes tannic cotton in pure, golden yellow tones, consisting in it that one boils 2,7-dimethyl-3,6-diamino-10-methylacridiniumchlorid with strong formic acid. The dye differs from the raw material in that it has purer and redder nuances and greater authenticity of its dyeings. UNTERANSPRUCH: Verfahren gemäss Patentanspruch, da durch gekennzeichnet, dass man in Gegenwart von ameisensaurem Natrium kocht. SUBCLAIM: Process according to claim, characterized in that cooking is carried out in the presence of sodium formic acid.
CH100188D 1922-04-13 1922-04-13 Process for the preparation of an acridine dye. CH100188A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH100188T 1922-04-13

Publications (1)

Publication Number Publication Date
CH100188A true CH100188A (en) 1923-07-02

Family

ID=4358462

Family Applications (1)

Application Number Title Priority Date Filing Date
CH100188D CH100188A (en) 1922-04-13 1922-04-13 Process for the preparation of an acridine dye.

Country Status (1)

Country Link
CH (1) CH100188A (en)

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