CH92406A - Process for the preparation of a dye of the phenyldinaphtylmethane series. - Google Patents

Process for the preparation of a dye of the phenyldinaphtylmethane series.

Info

Publication number
CH92406A
CH92406A CH92406DA CH92406A CH 92406 A CH92406 A CH 92406A CH 92406D A CH92406D A CH 92406DA CH 92406 A CH92406 A CH 92406A
Authority
CH
Switzerland
Prior art keywords
dye
acid
series
phenyldinaphtylmethane
preparation
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 CH92406A publication Critical patent/CH92406A/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
    • C09B11/00—Diaryl- or thriarylmethane dyes
    • C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/06—Hydroxy derivatives of triarylmethanes in which at least one OH group is bound to an aryl nucleus and their ethers or esters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Description

       

      Verfahren    zur Herstellung eines     Farbstoffes        der        Plienyldüniiplitylnietliaureilie.       Es wurde gefunden, dass, wenn     inan    auf       c-Naphtol        Benzotrichlorid        iii        Gegenwart    eines       säurebindenden    Mittels,     vorzugsweise        unter     Zugabe eines     Katalysators,    z. 13. Kupfer, ein  wirken lässt, ein grüner Farbstoff erhalten  wird.

   Dieser Farbstoff, der als Ausgangs  material     zur    Herstellung anderer Farbstoffe  dienen soll, bildet, in     Forin    seiner     Farbsäure          ein        bräunliches    Pulver, welches in Wasser       unlöslich,    in     1?atronlauge    schwer mit grüner  und in     konz.        Schwefelsäure    leicht mit brauner  Farbe     löslich    ist.

      <I>Beispiel</I>    576 Teile     (t-Naphtol    werden in     1.1.00    Teilen       Natronlauge    von 30      ,;"    Gewicht und 1000 Tei  len Wasser gelöst. Hierauf gibt man 390  Teile     Benzotrichlorid    hinzu     lind        rührt    so lange,  bis alles     Trichlorid    verschwunden ist.

   Das       Natriumsalz    des gebildeten     grünen        Farbstoffes     wird dann durch     Aussalzen    aus dein     finit          Wasser        verdünnten        Reaktionsgemisch    abge  schieden.



      Process for the production of a dye of the Plienyldüniiplitylnietliaureilie. It has been found that when inan on c-naphtol benzotrichloride iii the presence of an acid-binding agent, preferably with the addition of a catalyst, e.g. 13. Copper, one leaves an effect, a green dye is obtained.

   This dye, which is to serve as a starting material for the production of other dyes, forms, in the form of its coloring acid, a brownish powder, which is insoluble in water, difficult with green in 1? Atron liquor and in conc. Sulfuric acid is easily soluble with brown color.

      <I> Example </I> 576 parts (t-naphtol are dissolved in 1.1.00 parts of sodium hydroxide solution weighing 30. "" and 1000 parts of water. 390 parts of benzotrichloride are then added and the mixture is stirred until all of the trichloride has disappeared is.

   The sodium salt of the green dye formed is then separated out by salting out the diluted reaction mixture from the finite water.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Farb- stoffes der Plienv ldinaphty hnethanreihe, da durch gekennzeichnet, dass a-Naphtol mit Benzotrichlorid in Degenwart eines säure bindenden Mittels behandelt wird. Der so erhaltene Farbstoff, der als Ausgangsmaterial. PATENT CLAIM: Process for the production of a dye of the Plienv ldinaphty hnethan series, characterized in that a-naphthol is treated with benzotrichloride in the presence of an acid-binding agent. The dye thus obtained, used as the starting material. zur Herstellung anderer Farbstoffe dienen soll, bildet in Form seiner Farbsäure ein dunkles Pulver, welches in Wasser unlöslich, in Natronlauge schwer mit grüner und in konz. Schwefelsäure leicht mit brauner Farbe löslich ist. UNTERANSPRüCHE 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet. dal@ Natronlauge als säure bindendes Mittel verwendet wird. to be used for the production of other dyes, forms a dark powder in the form of its color acid, which is insoluble in water, difficult in sodium hydroxide solution with green and in conc. Sulfuric acid is easily soluble with brown color. SUBClaims 1. Method according to claim, characterized. dal @ sodium hydroxide solution is used as an acid-binding agent. 2. V, erfahren nach Patentanspruch, dadurch gekennzeichnet, dass die Reaktion in Gegen wart von Kupfer durchgeführt wird. 2. V, experience according to claim, characterized in that the reaction is carried out in the presence of copper.
CH92406D 1921-01-18 1921-01-18 Process for the preparation of a dye of the phenyldinaphtylmethane series. CH92406A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH92406T 1921-01-18

Publications (1)

Publication Number Publication Date
CH92406A true CH92406A (en) 1922-02-16

Family

ID=4349852

Family Applications (1)

Application Number Title Priority Date Filing Date
CH92406D CH92406A (en) 1921-01-18 1921-01-18 Process for the preparation of a dye of the phenyldinaphtylmethane series.

Country Status (1)

Country Link
CH (1) CH92406A (en)

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