CH199092A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH199092A
CH199092A CH199092DA CH199092A CH 199092 A CH199092 A CH 199092A CH 199092D A CH199092D A CH 199092DA CH 199092 A CH199092 A CH 199092A
Authority
CH
Switzerland
Prior art keywords
azo dye
green
preparation
dye
amino
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Ind Basel filed Critical Chem Ind Basel
Publication of CH199092A publication Critical patent/CH199092A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
    • C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
    • C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
    • C09B29/3617—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a six-membered heterocyclic with only one nitrogen as heteroatom

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Zusatzpatent zum     Hauptpatent    Nr. 196345.    Verfahren zur Herstellung eines     Azofarbstoffes.       Es wurde gefunden, dass man einen     Azo-          farbstoff    erhält, wenn man die     Diazoverbin-          duug    des     1-Amino-4-cyan-2-phenylmethyl-          sulfons    mit     py.3-Oxyteti@ahydro-7-oxyriaphtho-          chinolin    in saurem Medium vereinigt.

   Der er  haltene     Farbstoff    bildet ein dunkles Pulver,  das sich in organischen Lösungsmitteln wie  Aceton,     Essigsäureäthylester    mit grünblauer  Farbe löst und das     Acetatseide        aus    feiner  Suspension in weiss     ätzbaren        grünblauen     Tönen färbt.  



  <I>Beispiel:</I>  19,6 Teile     1-Amino-4-cyan-2-pheriylrnethyl-          sulfon    werden in der nötigen Menge ver  dünnter Salzsäure unter Zusatz von 7 Ge  wichtsteilen     Natriumnitrit    und Eis     diazotiert     und die erhaltene     Diazolösung    mit einer Lö  sung von 21,5 Teilen     py-3-Oxytetrahydro-7-          oxynaphthochinolin    in verdünnter Salzsäure    vereinigt. Darauf neutralisiert man langsam  die Mineralsäure durch     Zutropfen    der erfor  derlichen Menge     Natriumacetatlösung.    Man       filtriert    und wäscht neutral.



  Additional patent to main patent no. 196345. Process for the production of an azo dye. It has been found that an azo dye is obtained when the diazo compound of 1-amino-4-cyano-2-phenylmethylsulfone is combined with py.3-Oxyteti@ahydro-7-oxyriaphthoquinoline in an acidic medium .

   The dye he holds forms a dark powder that dissolves in organic solvents such as acetone and ethyl acetate with a green-blue color and dyes the acetate silk from a fine suspension in white-etchable green-blue tones.



  <I> Example: </I> 19.6 parts of 1-amino-4-cyano-2-pheriylrnethyl- sulfone are diazotized in the necessary amount of dilute hydrochloric acid with the addition of 7 parts by weight of sodium nitrite and ice and the resulting diazo solution with a Lö solution of 21.5 parts of py-3-oxytetrahydro-7-oxynaphthoquinoline combined in dilute hydrochloric acid. The mineral acid is then slowly neutralized by adding the necessary amount of sodium acetate solution dropwise. It is filtered and washed neutral.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man die Diazoverbindungdes 7 -Amino-4-cyan.2.phenyl. methylsulforis mit py-3-Oxytetr-ahydro-7-oxy- naphthochinolin in saurem Medium vereinigt. Der erhaltene Farbstoff bildet ein dunkles Pulver, das sich in organischen Lösungsmitteln wie Aceton, Essigsäureäthylester, mit grün blauer Farbe löst und das Acetatseide aus feiner Suspension in weiss ätzbaren grünblauen Tönen färbt. PATENT CLAIM: Process for the production of an azo dye, characterized in that the 7-amino-4-cyan.2.phenyl. methylsulforis combined with py-3-oxytetr-ahydro-7-oxynaphthoquinoline in an acid medium. The dye obtained forms a dark powder which dissolves in organic solvents such as acetone and ethyl acetate with a green-blue color and dyes the acetate silk from a fine suspension in white-etchable green-blue tones.
CH199092D 1936-12-31 1936-12-31 Process for the preparation of an azo dye. CH199092A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH199092T 1936-12-31
CH196345T 1936-12-31

Publications (1)

Publication Number Publication Date
CH199092A true CH199092A (en) 1938-07-31

Family

ID=25722837

Family Applications (1)

Application Number Title Priority Date Filing Date
CH199092D CH199092A (en) 1936-12-31 1936-12-31 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH199092A (en)

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