CH179681A - Process for the production of a new vat dye. - Google Patents

Process for the production of a new vat dye.

Info

Publication number
CH179681A
CH179681A CH179681DA CH179681A CH 179681 A CH179681 A CH 179681A CH 179681D A CH179681D A CH 179681DA CH 179681 A CH179681 A CH 179681A
Authority
CH
Switzerland
Prior art keywords
production
vat dye
new vat
methyl
violet color
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 CH179681A publication Critical patent/CH179681A/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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/70—Benzo-, naphtho-, and anthra-dianthrones

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 176034.    Verfahren zur Herstellung eines neuen     Nüpenfarbstoffes.       Es wurde gefunden, dass man einen  neuen     Küpenfarbstoff,    das     Allo-pyridino-          meso-naphthodianthron,    erhält, wenn man  auf     2-Aminö-2'-methyl-meso-naphthodian-          thron    alkoholisches     Kaliumhydroxyd    ein  wirken     lässt.     



  Das     Allo-pyridino-meso-naphthodianthron     bildet ein dunkelbraunes Pulver, das sich in  Schwefelsäure blauviolett löst. Es     küpt    mit  violetter Farbe und erzeugt auf Baumwolle  echte orange Färbungen.  



  <I>Beispiel:</I>  In eine auf 140' erwärmte Schmelze von  120 Teilen     Kaliumhydroxy    d und 120     Vo-          lumteilen    absolutem Alkohol werden bei 14  bis<B>150'</B> 10,6 Teile     2-Amino-2'-methyl-meso-          naphthodianthron    eingetragen. Man hält:  noch 1 Stunde bei<B>150</B> bis 160  , gibt die  Schmelze in Wasser und arbeitet wie üblich  auf.

   Das hier verwendete     2-Amino-2'-me-          hyl-meso-naphthodianthron    wird erhalten,       nclem    man zum Beispiel das     2-Phthal-imino-          1'-metbylmesonaphthodianthron    mittelst     Hy-          drazinhydrat    in     Pyridin    verseift. Letzteres    kann man erhalten durch Oxydation von  zum Beispiel     2-Phthalimino-2'-methyl-meso-          benzdianthron        mittelst    Braunstein in kon  zentrierter Schwefelsäure.

   Das     2-Phthal-          imino-2'-methvl-meso-benzdianthron    entsteht  wiederum aus dem     2-Phthalimino-2'-methyl-          1    .     1'-dianthrachinonyl    durch Behandlung mit  zum Beispiel Kupferpulver in konzentrier  ter Schwefelsäure.



  <B> Additional patent </B> to main patent no. 176034. Process for the production of a new pimple dye. It has been found that a new vat dye, allo-pyridino-meso-naphthodianthrone, is obtained if alcoholic potassium hydroxide is allowed to act on 2-amino-2'-methyl-meso-naphthodianthron.



  The allo-pyridino-meso-naphthodianthrone forms a dark brown powder that dissolves in sulfuric acid in a blue-violet color. It blends with violet color and creates real orange colors on cotton.



  <I> Example: </I> In a melt of 120 parts of potassium hydroxide and 120 parts by volume of absolute alcohol, heated to 140 ', 10.6 parts of 2-amino-2 are added at 14 to <B> 150' </B> '-methyl-mesonaphthodianthrone registered. Hold: at <B> 150 </B> to 160 for another hour, pour the melt into water and work up as usual.

   The 2-amino-2'-methyl-mesonaphthodianthrone used here is obtained if, for example, the 2-phthalimino-1'-methylmesonaphthodianthrone is saponified in pyridine by means of hydrazine hydrate. The latter can be obtained by oxidation of, for example, 2-phthalimino-2'-methyl-mesobenzdianthrone by means of manganese dioxide in concentrated sulfuric acid.

   The 2-phthalimino-2'-methvl-meso-benzdianthrone in turn arises from the 2-phthalimino-2'-methyl-1. 1'-dianthraquinonyl by treatment with, for example, copper powder in concentrated sulfuric acid.

Claims (1)

PATENTANSPRUCE Verfahren zur Herstellung eines neuen Küpenfarbstoffes, dadurch gekennzeichnet, dass man auf 2-Amino-2'-methyl-meso-naph- thodianthron alkoholisches Kaliumhydroxyd einwirken lässt. Das so erhaltene Allo-pyridino-meso- naphtbodianthron bildet ein dunkelbraunes Pulver, das sich in Schwefelsäure blauvio lett löst. Es küpt mit violetter Farbe und erzeugt auf Baumwolle echte orange Fär bungen. PATENT APPLICATION Process for the production of a new vat dye, characterized in that alcoholic potassium hydroxide is allowed to act on 2-amino-2'-methyl-meso-naphthodianthrone. The allo-pyridino-mesonaphtbodianthrone obtained in this way forms a dark brown powder that dissolves in sulfuric acid in a blue-violet color. It blends with violet color and creates real orange colors on cotton.
CH179681D 1934-02-27 1934-02-27 Process for the production of a new vat dye. CH179681A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH179681T 1934-02-27
CH176034T 1934-02-27

Publications (1)

Publication Number Publication Date
CH179681A true CH179681A (en) 1935-09-15

Family

ID=25719795

Family Applications (1)

Application Number Title Priority Date Filing Date
CH179681D CH179681A (en) 1934-02-27 1934-02-27 Process for the production of a new vat dye.

Country Status (1)

Country Link
CH (1) CH179681A (en)

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