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CH140328A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH140328A
CH140328A CH140328DA CH140328A CH 140328 A CH140328 A CH 140328A CH 140328D A CH140328D A CH 140328DA CH 140328 A CH140328 A CH 140328A
Authority
CH
Switzerland
Prior art keywords
azo dye
preparation
dye
methyl
pyrazolone
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH140328A publication Critical patent/CH140328A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines     Azofarbstoffes.       Im Hauptpatent ist ein Verfahren zur  Herstellung eines     Azofarbstoffes    beschrieben,  bei dem man die     Diazoverbindung    des     An-          thranilsäure-n-butylesters    mit     1-(4'-Sulfophe-          nyl)-3-methyl-5-pyrazolon    kombiniert.  



  Es wurde nun gefunden, dass man eben  falls einen wertvollen     Azofarbstoff    erhält,  wenn man die     Diazoverbindung    des     Anthra-          nilsäure-n-butylesters    mit     1-(5'-Sulfo-2'-chlor-          phenyl)-3-methyl-5-pyrazolon    kombiniert. Der  erhaltene Farbstoff färbt Wolle in     grünstichig     gelben, sehr echten Tönen.  



  <I>Beispiel:</I>  Die wässerige Lösung der in der üblichen  Weise erhaltenen     Diazoverbindungen    von 29,1  Teilen     Anthrariilsäure-n-butylestersulfat    lässt    man in eine wässerige Lösung von 29,0 Tei  len     1-(5'-Sulfo-2'-chlorphenyl)-3-methyl-5-py-          razolon    und 150 Teilen wasserfreier Soda       einfliessen.    Nach etwa 2-3 Stunden langem  Rühren wird der entstandene Farbstoff ab  gesaugt.



  Process for the preparation of an azo dye. The main patent describes a process for the preparation of an azo dye in which the diazo compound of n-butyl anthranilate is combined with 1- (4'-sulfophenyl) -3-methyl-5-pyrazolone.



  It has now been found that a valuable azo dye is also obtained if the diazo compound of n-butyl anthranolate is obtained with 1- (5'-sulfo-2'-chlorophenyl) -3-methyl-5-pyrazolone combined. The dye obtained dyes wool in greenish yellow, very real shades.



  <I> Example: </I> The aqueous solution of the diazo compounds obtained in the usual way of 29.1 parts of anthrariic acid n-butyl ester sulfate is allowed to pour into an aqueous solution of 29.0 parts of 1- (5'-sulfo-2 '-chlorophenyl) -3-methyl-5-py- razolon and 150 parts of anhydrous soda flow in. After stirring for about 2-3 hours, the resulting dye is sucked off.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man die Diazoverbindung des Anthranilsäure-n-butyl- esters mit 1-(5'-Sulfo-2'-chlorphenyl)-3-methyl- 5-pyrazolon kombiniert. Der erhaltene Farbstoff färbt Wolle in grünstichig gelben, sehr echten Tönen. Claim: Process for producing an azo dye, characterized in that the diazo compound of anthranilic acid n-butyl ester is combined with 1- (5'-sulfo-2'-chlorophenyl) -3-methyl-5-pyrazolone. The dye obtained dyes wool in greenish yellow, very real shades.
CH140328D 1927-11-17 1928-10-10 Process for the preparation of an azo dye. CH140328A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE140328X 1927-11-17
CH138601T 1928-10-10

Publications (1)

Publication Number Publication Date
CH140328A true CH140328A (en) 1930-05-31

Family

ID=25713220

Family Applications (1)

Application Number Title Priority Date Filing Date
CH140328D CH140328A (en) 1927-11-17 1928-10-10 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH140328A (en)

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